Performance information

• Comparison of Aluminum Alloy and Copper Friction Stir Burnishing Tools Combined with Direct Energy Deposition Arc Process on Microstructure and Microhardness of 316L Stainless Steel　　　　　　　　　　　　　　　
  Teerayut Cordkaew; Jun’ichi Kaneko; Takeyuki Abe
  Journal of Manufacturing and Materials Processing, Feb. 2025, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/jmmp9020053
  DOI ID：10.3390/jmmp9020053, ORCID：177584259
• Advanced tooth profile roughing system (Innovating gear skiving with diamond-shaped edge tools)
  Hiroki YONEZAWA; Jun’ichi KANEKO; Takeyuki ABE; Akihiro NAKAZATO
  Journal of Advanced Mechanical Design, Systems, and Manufacturing, Volume：18, Number：7, First page：JAMDSM0090, Last page：JAMDSM0090, Nov. 2024, [Reviewed]
  Japan Society of Mechanical Engineers, Scientific journal
  DOI：https://doi.org/10.1299/jamdsm.2024jamdsm0090
  DOI ID：10.1299/jamdsm.2024jamdsm0090, eISSN：1881-3054
• Development of precision analysis method of tooth profile in gear skiving process with shape projection of removal area
  Hiroki Yonezawa; Jun; ichi Kaneko; Takeyuki Abe; Naruhiro Irino; Yuta Shinba; Yasuhiro Imabeppu
  International Journal of Abrasive Technology, Volume：12, Number：5, First page：1, Last page：14, Nov. 2024, [Reviewed]
  Inderscience Publishers, English, Scientific journal
  DOI：https://doi.org/10.1504/ijat.2024.144424
  DOI ID：10.1504/ijat.2024.144424, ISSN：1752-2641, eISSN：1752-265X
• Analysis of the Relationship Between Process Parameters and Microhardness for the Finishing Process by Wire Arc Additive Manufacturing Combined with the FSB Tool of Austenitic Stainless Steel 316L　　　　　　　　　　　　　　　
  Teerayut Cordkaew; Jun’ichi Kaneko; Takeyuki Abe
  International Journal of Automation Technology, Sep. 2024, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.20965/ijat.2024.p0688
  DOI ID：10.20965/ijat.2024.p0688, ORCID：166813243
• Study on the influence of the dendritic microstructure on the turning of Wire and Arc Additive Manufacturing Inconel 718　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos, Youhei Kujirai, Jun'ichi Kaneko, Takeyuki Abe
  International Journal of Abrasive Technology, Volume：12, Number：3, First page：203, Last page：220, Sep. 2024, [Reviewed]
  DOI：https://doi.org/10.1504/IJAT.2024.140962
  DOI ID：10.1504/IJAT.2024.140962
• ERTi-2 cladding layer formation on a 5052 plate by a weaving strategy with wire and arc additive manufacturing　　　　　　　　　　　　　　　
  Kentaro Nakajima; Hiroyuki Sasahara; Hideaki Nagamatsu; Takeyuki Abe
  The International Journal of Advanced Manufacturing Technology, Jul. 2024, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s00170-024-14122-5
  DOI ID：10.1007/s00170-024-14122-5, ISSN：0268-3768, ORCID：163983975
• Investigation of relationship between process conditions and bead formability in wire additive manufacturing using Joule heating　　　　　　　　　　　　　　　
  Naoki Koyama, Takeyuki Abe, Jun'ichi Kaneko
  Journal of Advanced Mechanical Design, Systems, and Manufacturing, Volume：18, Number：5, First page：JAMDSM0058, Jul. 2024, [Reviewed], [Corresponding]
  DOI：https://doi.org/10.1299/jamdsm.2024jamdsm0058
  DOI ID：10.1299/jamdsm.2024jamdsm0058
• Analysis of Heat Treatment and Its Effects on the Machinability of Inconel 718 Products Manufactured with Wire and Arc Additive Manufacturing Technique　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos; Jun’ichi Kaneko; Takeyuki Abe
  Journal of Materials Engineering and Performance, Jun. 2024, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.1007/s11665-024-09706-x
  DOI ID：10.1007/s11665-024-09706-x, ISSN：1059-9495, ORCID：182178898
• Material property control of CuSn alloy using wire and arc additive manufacturing (Translated)　　　　　　　　　　　　　　　
  Yuta MAFUNE; Naoya KATAGIRI; Takafumi HANAI; Masanori KUBOTA; Takeyuki ABE; Jun’ichi KANEKO
  Mechanical Engineering Journal, Volume：11, Number：2, First page：23, Last page：00568, Apr. 2024, [Reviewed], [Corresponding], ［Domestic magazine］
  English, Scientific journal
  DOI：https://doi.org/10.1299/mej.23-00568
  DOI ID：10.1299/mej.23-00568, ISSN：2187-9745, ORCID：164219421
• Analysis of Machinability on Properties of Inconel 718 Wire and Arc Additive Manufacturing Products
  Gustavo Quadra Vieira dos Santos; Jun’ichi Kaneko; Takeyuki Abe
  Journal of Manufacturing and Materials Processing, Volume：8, Number：1, First page：4, Dec. 2023, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.3390/jmmp8010004
  DOI ID：10.3390/jmmp8010004, ORCID：149393681
• Development of directed energy deposition strategy for a mechanically interlocked pure Ti and Al alloy component with cross-shaped internal pure Ti lattice　　　　　　　　　　　　　　　
  Hideaki Nagamatsu; Takeyuki Abe; Kentaro Nakajima; Hiroyuki Sasahara
  Additive Manufacturing, Volume：78, First page：103895, Sep. 2023, [Reviewed]
  Scientific journal
  DOI：https://doi.org/10.1016/j.addma.2023.103895
  DOI ID：10.1016/j.addma.2023.103895, ORCID：147306882
• Process Planning with Removal of Melting Penetration and Temper Colors in 5-Axis Hybrid Additive and Subtractive Manufacturing　　　　　　　　　　　　　　　
  Akira Nishiyama; Shun Kayashima; Nobuyuki Sumi; Takashi Hashimoto; Takeyuki Abe; Jun’ichi Kaneko
  International Journal of Automation Technology, Volume：17, Number：4, First page：356, Last page：368, Jul. 2023, [Reviewed], [Corresponding]
  Hybrid manufacturing (HM), which combines additive manufacturing (AM) and subtractive manufacturing (SM), is effective for the fabrication of thin-walled complex shapes, such as impeller blades. Generally, a process planning for HM is to build a near-net shape through AM and finish its surface through SM. However, in this approach, the cutting tools are limited with long tool lengths and small tool diameters to avoid collisions between the cutting tool and workpiece. In addition, the fabrication shapes are also limited. Therefore, one possible solution is to alternate between AM and SM processes multiple times. In this approach, the workpieces are built gradually as the process progresses. Therefore, the cutting tool can easily avoid collision with the workpiece. However, melting penetration and temper color remain on the finished surfaces using the conventional process planning method with alternate multiple switching. In this process planning, AM and SM processes are alternated. Thus, the finished surfaces are remelted in the subsequent AM process. This heat input causes melting penetration and temper color. These thermal effects must be prevented because these can lead to unfinished part and deterioration of the appearance of the workpieces. Therefore, in this study, a novel process planning method that allows alternate multiple switches without thermal effects is proposed. In addition, a process planning support system that simulates SM process was developed. The SM simulation can detect collision between the cutting tool and workpiece. Using the proposed process planning method, the system plans a process in which thermal effects will not occur. In addition, a case study was conducted using a simulated impeller blade geometry. The results of the case study showed that the developed system could plan by using several cutting tools and parameters of the machining head. The system can estimate the processing time based on the cutting tool path, deposition path, SM process conditions, and AM process conditions. The results validated the developed system and demonstrated its usefulness.
  Fuji Technology Press Ltd., English, Scientific journal
  DOI：https://doi.org/10.20965/ijat.2023.p0356
  DOI ID：10.20965/ijat.2023.p0356, ISSN：1883-8022, ORCID：139507569
• Determination of alternation sequence for additive and subtractive manufacturing based on subtractive manufacturing simulation　　　　　　　　　　　　　　　
  Takeyuki Abe; Tomoaki Kataoka; Shun Kayashima; Nobuyuki Sumi; Takashi Hashimoto; Jun'ichi Kaneko
  Precision Engineering, Volume：80, First page：160, Last page：170, Mar. 2023, [Reviewed], [Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1016/j.precisioneng.2022.12.002
  DOI ID：10.1016/j.precisioneng.2022.12.002, ORCID：125045894
• Microstructure Evaluation of the Potential of Additive Manufactured Dissimilar Titanium–Aluminum Alloys　　　　　　　　　　　　　　　
  Hideaki Nagamatsu; Takeyuki Abe; Hiroyuki Sasahara
  Materials, Volume：15, Number：938, First page：1, Last page：11, Dec. 2022, [Reviewed]
  English, Scientific journal
  DOI：https://doi.org/10.3390/ma15249038
  DOI ID：10.3390/ma15249038, ORCID：124958487
• Study on the Effects of Different Cutting Angles on the End-Milling of Wire and Arc Additive Manufacturing Inconel 718 Workpieces
  Gustavo Quadra Vieira dos Santos; Jun’ichi Kaneko; Takeyuki Abe
  Materials, Volume：15, Number：6, First page：2190, Mar. 2022, [Reviewed]
  This research presents an analysis of the effects of different cutting angles on the side milling of Inconel 718 products manufactured with the Wire and Arc Additive Manufacturing (WAAM) technique. Considering that this manufacturing technology can build near-net shape products, its surface quality is deemed unqualified as a final product, requiring a post-processing step. In this paper, three different angles—0◦, 35◦, and 90—are compared, looking for possible differences regarding its machinability. As the alloy in question is a material known for being difficult to machine, and the samples were produced with the additive manufacturing technique that created peculiar characteristics, it was deemed necessary to analyze different aspects of the machining process: the surface quality, tool wear, and cutting forces for all three cases, and to rank the angles regarding these results. With analog experiments with the same alloy but cold-rolled, it was possible to infer that not only is the 0-degree angle is the best option for milling, but the anisotropy of the WAAM samples could be the major source of the differences in the milling results.
  Scientific journal
  DOI：https://doi.org/10.3390/ma15062190
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85127086436&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85127086436&origin=inward
  DOI ID：10.3390/ma15062190, eISSN：1996-1944, ORCID：110148426, SCOPUS ID：85127086436
• ワイヤ+アーク放電を用いたアディティブマニュファクチャリングによるCuSn 合金の材料特性制御技術の開発　　　　　　　　　　　　　　　
  間船 雄太,片桐 直弥,花井 孝文,久保田 優典,阿部 壮志*,金子 順一
  日本機械学会論文集, Volume：88, Number：909, 2022, [Reviewed], [Corresponding]
  Scientific journal
  DOI：https://doi.org/10.1299/transjsme.21-00353
  DOI ID：10.1299/transjsme.21-00353
• Simulating the build shape for a shell structure for wire and arc additive manufacturing using the bead cross-section model
  Abe, T.; Sasahara, H.
  Journal of Advanced Mechanical Design, Systems and Manufacturing, Volume：15, Number：1, First page：1, Last page：13, Jan. 2021, [Reviewed], [Corresponding]
  Wire and arc additive manufacturing is one of the additive manufacturing processes based on arc welding technology and is particularly useful in fabricating large-sized die and prototype machine parts. In general, a computer-aided manufacturing (CAM) system is required not only to generate the deposition path as a numerical control data but also to estimate the shape of the build structure. Estimating the build structure before the actual fabrication can help determine the optimal process parameters. However, the build structure simulated using the existing CAM system may not be sufficiently accurate, because the bead geometry is influenced by various factors, such as the process parameters, material type, target shape, and the location in which the molten metal is deposited. In this scenario, it is challenging to obtain the optimal process parameters based on the build structure simulation results. Therefore, in this study, a two-dimensional bead cross-section model was established, in which the bead accumulation was considered to fabricate a shell structure, and a build shell structure simulator was developed. The temperature distribution was numerically simulated to obtain the relationship between a process parameter and the bead cross-section geometry without conducting destructive inspection. Furthermore, the accuracy of the simulator was investigated. The results indicated that the accuracy of the simulator was approximately ±1 mm in the area with a low influence of the deposition start and stop processes.
  Scientific journal
  DOI：https://doi.org/10.1299/JAMDSM.2021JAMDSM0001
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85099792365&origin=inward
  DOI ID：10.1299/JAMDSM.2021JAMDSM0001, ISSN：1881-3054, eISSN：1881-3054, ORCID：113138996, SCOPUS ID：85099792365
• Microstructure and welding penetration of wire and arc additive manufactured pure titanium and A5356 dissimilar alloys using cold metal transfer welding　　　　　　　　　　　　　　　
  Hideaki Nagamatsu; Hiroyuki Sasahara; Takeyuki Abe
  Proceedings of the 21st International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2021, First page：71, Last page：72, 2021
  Due to the substantial differences in the chemical and physical characteristics between aluminum (Al) and titanium (Ti) alloy wires, few researchers have investigated dissimilar metal deposition using Al and Ti alloy wires in the wire and arc additive manufacturing (WAAM) process. Therefore, we objected to clarify the effect of the processing conditions on the welding penetration and the intermetallic compounds (IMC) of the Ti/Al bead by WAAM. This study focused on the A5356 and ERTi-2 as filler materials. An A5052 substrate fabricated on the Al alloy bead or wall at first, and then a pure Ti bead was deposited on the Al layer. From the microscopic observations, in the conditions with the high heat input and the Ti deposition on the Al wall structure, the Ti penetrated in the large area. And the upper part of the Al wall structure was molten and broken. Besides, the observation revealed an acicular and an equiaxed structure with the Ti and Al elements around the Ti/Al interface layer due to dilution of the Ti layer by Al alloy.
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85109216884&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85109216884&origin=inward
  SCOPUS ID：85109216884
• Suppression of anisotropy by wire and arc additive manufacturing with finishing process
  NAKATA, Y.; ABE, T.; KANEKO, J.
  Journal of Advanced Mechanical Design, Systems and Manufacturing, Volume：15, Number：6, First page：JAMDSM0066, 2021, [Reviewed], [Corresponding]
  Additive manufacturing (AM) is attracting more and more interests due to its high material utilization and great flexibility in product design. WAAM is characterized by its ability to manage various metallic materials and high deposition speed. However, its shape accuracy is lower than that of its accumulation via other AM processes and finishing is required as a post-process. In addition, accumulations by AM composed of metal have a complicated thermal history owing to repeated melting and rapid solidification. Consequently, dendritic growth occurs in the microstructure of its accumulation using SUS316L austenitic stainless steel. Therefore, compared with equigranular structures, the mechanical properties of stainless steel, such as ductility and yield strength, are anisotropic. Hence, we herein propose a new system that combines wire and arc additive manufacturing (WAAM) and finishing processing systems. In this method, finishing is performed by the rotating tool when the molten metal solidifies. Experiments using the new system are performed to suppress an anisotropic microstructure by the accumulation of WAAM. As a rotary tool, a cutting tool and a friction stir burnishing (FSB) tool are used. Microstructure observation and X-ray diffraction analysis are performed to evaluate the anisotropy of the accumulation. Using the new system, dendritic growth can be suppressed in an accumulation. By applying the abovementioned simultaneous processing system to the outermost layer of WAAM deposition, improvement in fatigue strength via surface modification and simplification of the finishing process are expected.
  Scientific journal
  DOI：https://doi.org/10.1299/jamdsm.2021jamdsm0066
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85117758278&origin=inward
  DOI ID：10.1299/jamdsm.2021jamdsm0066, ISSN：1881-3054, eISSN：1881-3054, ORCID：113138995, SCOPUS ID：85117758278
• Development of tool shape estimation method integrating multidirectional optical measurement　　　　　　　　　　　　　　　
  Kaneko, M.; Kaminaga, T.; Kaneko, J.; Katano, K.; Abe, T.; Horio, K.
  International Journal of Automation Technology, Volume：14, Number：3, First page：512, Last page：520, May 2020, [Reviewed]
  Advance avoidance of machine collision by means of computer simulation is now common in NC machining. However, human errors from the tool shape mounted in the machine tool main shaft not matching the simulation data and the actual tool have become a problem. Therefore, in this research, we have developed a high-speed method of comparing the shape of a tool mounted on a machine tool main shaft and an estimated shape in a simulation. This is done by capturing an image of the tool with a camera and estimating the tool shape from multiple images.
  FUJI TECHNOLOGY PRESS LTD, English, Scientific journal
  DOI：https://doi.org/10.20965/IJAT.2020.P0512
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85086760947&origin=inward
  DOI ID：10.20965/IJAT.2020.P0512, ISSN：1881-7629, eISSN：1883-8022, ORCID：76925987, SCOPUS ID：85086760947, Web of Science ID：WOS:000531794300018
• Development of scanning line tool path generation algorithm using boundary position information of approximate polyhedron of complex molds　　　　　　　　　　　　　　　
  Saito, Y.; Kaneko, J.; Abe, T.; Horio, K.
  International Journal of Automation Technology, Volume：14, Number：3, First page：491, Last page：499, May 2020, [Reviewed]
  In the manufacturing industry, molds are required for mass production operations, and the industry's recent small lot, multi-product production systems call for such molds to be made by NC machine tools in short periods of time. The tool path point coordinates of NC machine tools are derived by geometric computations, which are used in turn to derive the polyhedron-approximated mold surface and the contact positions of the tool. In the conventional method, however, placing surplus tool path points on the planar section makes it difficult to acquire the boundary position coordinate values in the vicinity of the boundaries of the polyhedrons that constitute the curved surface, resulting in errors in the path point coordinates for the polyhedron-approximated shape of the mold surface. In this study, therefore, we have developed CAM algorithms that can reduce the tool path errors and suppress the number of tool path points by not deriving the path point coordinates in the linearly approximated section. This is done by using the boundary information of the approximate polyhedrons that constitute the concave section of the mold model.
  FUJI TECHNOLOGY PRESS LTD, English, Scientific journal
  DOI：https://doi.org/10.20965/IJAT.2020.P0491
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85086765803&origin=inward
  DOI ID：10.20965/IJAT.2020.P0491, ISSN：1881-7629, eISSN：1883-8022, ORCID：76925983, SCOPUS ID：85086765803, Web of Science ID：WOS:000531794300016
• Thermal sensing and heat input control for thin-walled structure building based on numerical simulation for wire and arc additive manufacturing
  Abe, T.; Kaneko, J.; Sasahara, H.
  Additive Manufacturing, Volume：35, First page：101357, Oct. 2020, [Reviewed]
  © 2020 Elsevier B.V. In the wire and arc additive manufacturing process, the cumulative temperature increase caused by the repeated deposition process reduces the dimensional accuracy of the build structure. When the temperature of the build structure increases, the deposited metal width increases, while the height decreases. In this case, using a lower heat-input condition is effective because the temperature near the molten pool can be locally lower and the molten pool size can decrease. Thus, the height of the build structure can increase, and the uniformity of the deposited metal width can be improved. In this paper, a heat-input condition control system is proposed. This system controls the voltage—a heat input condition—which is applied from the welding power source according to the temperature of the build structure. The temperature of this structure is measured using a radiation thermometer during the deposition process. To determine the optimal voltage value, the relationship between the build structure temperature and the deposited metal shape is estimated by a numerical simulation. The optimal heat input condition is derived based on simulation results with varying preheat temperatures and heat input conditions. By using numerical simulations, the number of experiments can be minimized. To evaluate the proposed method, a thin-walled structure was built, and its profile was measured. The accuracy of the build was successfully improved by using the proposed method.
  Scientific journal
  DOI：https://doi.org/10.1016/j.addma.2020.101357
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85086498893&origin=inward
  DOI ID：10.1016/j.addma.2020.101357, eISSN：2214-8604, ORCID：76925985, SCOPUS ID：85086498893
• Control of the chemical composition distribution in deposited metal by wire and arc-based additive manufacturing　　　　　　　　　　　　　　　
  Abe, T.; Mori, D.; Sonoya, K.; Nakamura, M.; Sasahara, H.
  Precision Engineering, Volume：55, First page：231, Last page：239, Jan. 2019, [Reviewed]
  Wire and arc-based additive manufacturing (AM) is an additive manufacturing technique applying arc welding technology, where the metal melted by the arc discharge is accumulated and deposited. High-performance products with an excellent mechanical or chemical properties can be obtained using more than two materials through wire and arc-based AM. However, thermal stress and residual stress can form around the interface between two materials. Therefore, the objective of this study is to control the chemical composition of the deposited metal so that it changes gradually near the interface. Intermediate layers, with controlled chemical compositions, were inserted between the materials boundary. To regulate the chemical composition of the deposited metal, a filler wire was added into the molten pool during the deposition process. Results revealed that the chemical composition changed gradually near the interface using the proposed method.
  ELSEVIER SCIENCE INC, English, Scientific journal
  DOI：https://doi.org/10.1016/j.precisioneng.2018.09.010
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85059301865&origin=inward
  DOI ID：10.1016/j.precisioneng.2018.09.010, ISSN：0141-6359, eISSN：1873-2372, ORCID：58068085, SCOPUS ID：85059301865, Web of Science ID：WOS:000456228400023
• Fast tool path generation algorithm for large-scale discrete shape　　　　　　　　　　　　　　　
  Kitahara, H.; Kangko, J.; Ajisaka, M.; Abe, T.; Horio, K.
  Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering, Volume：85, Number：6, First page：597, Last page：604, 2019
  

  Normally, tool path is generated by geometric calculation between a model and the cutting tool. However, as the number of curved surfaces increases, the number of polyhedrons increases, so a calculation time becomes enormous. In past research, the calculation method using offset surface generation and the parallel processing function of GPU were proposed to solve this problem. However, these methods didn't consider error due to the approximation process and increase in memory usage. In the previous research, the authors defined the offset elements as three geometric shapes of offset polygons, cylinders, and spheres, and updated the intersection point between the z axis and them in the height direction to generate accurate cutter locations. This paper proposed a new calculation algorithm to improve computational time for the proposed path generation process. In this research, in order to use the GPU efficiently, the reference order of the offset elements is rearranged in the scanning line direction. Then, it is divided into several groups according to the size of the offset elements. By applying these methods, it is possible to generate tool paths with high precision and high speed for large scale discrete shapes.

  
  The Japan Society for Precision Engineering, Japanese, Scientific journal
  DOI：https://doi.org/10.2493/jjspe.85.597
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85067369174&origin=inward
  DOI ID：10.2493/jjspe.85.597, ISSN：0912-0289, CiNii Articles ID：130007659723, ORCID：76925982, SCOPUS ID：85067369174
• Accurate tool path generation method for large-scale discrete shapes　　　　　　　　　　　　　　　
  Kitahara, H.; Kaneko, J.; Ajisaka, M.; Abe, T.; Horio, K.
  International Journal of Automation Technology, Volume：13, Number：2, First page：279, Last page：288, Mar. 2019, [Reviewed]
  Three-axis ball end mills are used for the finishing of metal molds of complicated curved surfaces. Typically, a tool path of this shape machining is derived from the geometric calculations of a tool used, and a product model that is a computer aided design (CAD)-based polyhedron approximating the shape. The polyhedron is more complicated to approximate a shape with more curved surfaces, as it is highly time consuming. To solve this problem, methods to accelerate geometric calculations using a computer graphics drawing processing mechanism were proposed. However, these methods cannot guard against errors arising from the approximation of an inverse offset shape using a set of polygons. In the present study, we propose a method to generate tool paths accurately based on calculating the crossing points of the tool axis and defining the offset surface as a set of polygons, cylindrical surfaces, and spherical surfaces. With this method, it is expected that the height of an area, which was divided by fine polygons in previous methods, can be derived accurately, and a tool path can be generated with high precision.
  FUJI TECHNOLOGY PRESS LTD, English, Scientific journal
  DOI：https://doi.org/10.20965/ijat.2019.p0279
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85065237112&origin=inward
  DOI ID：10.20965/ijat.2019.p0279, ISSN：1881-7629, eISSN：1883-8022, ORCID：58068088, SCOPUS ID：85065237112, Web of Science ID：WOS:000460203900014
• Developing a support system for loading planning　　　　　　　　　　　　　　　
  Nakamura, T.; Kaneko, J.; Abe, T.; Horio, K.
  International Journal of Automation Technology, Volume：13, Number：4, First page：475, Last page：481, Jul. 2019, [Reviewed]
  While loading equipment into factories or facilities, pre-loading planning on computers to determine a loading object's posture and its loading path will help reduce trials and errors at the site location. During such pre-loading planning, we need to detect the shape data of both the factory area and loading object and their interference states and then plan the loading object's posture accordingly. In practice, however, there are a considerable number of issues while acquiring the latest factory area data and while grasping where the loading object in complex postures will result in interference, both simultaneously and for a short time period. In this study, we aimed at resolving the above-mentioned difficulties by developing a system that can detect where the loading object will interfere by means of polygonal shapes and can visualize the area by means of point clouds, both working in conjunction so that the developed system can automatically plan a loading object's posture and can visualize its planned posture through augmented reality.
  FUJI TECHNOLOGY PRESS LTD, English, Scientific journal
  DOI：https://doi.org/10.20965/ijat.2019.p0475
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85070926244&origin=inward
  DOI ID：10.20965/ijat.2019.p0475, ISSN：1881-7629, eISSN：1883-8022, ORCID：76925986, SCOPUS ID：85070926244, Web of Science ID：WOS:000473809400004
• Layer geometry control for the fabrication of lattice structures by wire and arc additive manufacturing　　　　　　　　　　　　　　　
  Abe, T.; Sasahara, H.
  Additive Manufacturing, Volume：28, First page：639, Last page：648, Aug. 2019, [Reviewed]
  Wire and arc additive manufacturing (WAAM) is an additive manufacturing (AM) technology that uses wire-form materials and arc discharges as the energy source. AM techniques can fabricate complicated shapes that cannot be obtained via conventional processing. Building lattice structures inside components enables weight reduction while maintaining high strength. Strut shapes must be constructed to form these lattice structures using WAAM. For fabricating strut shapes with high accuracy, the process parameters should be optimized. However, the relationship between layer geometry and process parameters is not clear. Therefore, in this study, struts were fabricated under various process conditions to investigate the influences of process parameters on the built object geometry. The results showed that fabrication of strut shapes depends on the heat input condition. Moreover, it was found that the arc discharge time had the highest influence on the layer height and diameter. The inclination angle of an overhanging shape had little influence on the dimensional accuracy of the built object. In addition, computer-aided manufacturing (CAM) system was developed for the fabrication of lattice structures, and the lattice structures were successfully built using WAAM. The build accuracy was measured using an x-ray computed tomography (CT) scanner; the deviation in the structures designed using the CAM system and the actual fabricated structures measured using the CT scanner was lower than approximately +/- 2.3 mm.
  ELSEVIER, English, Scientific journal
  DOI：https://doi.org/10.1016/j.addma.2019.06.010
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85067483747&origin=inward
  DOI ID：10.1016/j.addma.2019.06.010, ISSN：2214-8604, eISSN：2214-7810, ORCID：76925984, SCOPUS ID：85067483747, Web of Science ID：WOS:000492672300061
• アーク放電を用いた溶融金属積層による傾斜構造造形技術の開発　　　　　　　　　　　　　　　
  阿部壮志
  溶接協会誌, Volume：66, Number：1, First page：110, Last page：111, 2018
• Surface treatment and tensile strength analysis of fused filament fabrication additive manufactured products treated with the abrasive blasting technique　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos; Junchi Kaneko; Kenichiro Horio; Takeyuki Abe
  Proceedings of 2018 ISFA - 2018 International Symposium on Flexible Automation, 2018, [Reviewed]
  Copyright © 2018 by ISFA. This research presents an examination of the Abrasive Blasting technique (Sandblasting) as an alternative for the surface treatment of Additive Manufacturing products obtained through Fused Filament Fabrication (FFF) method. The growing popularity of this kind of manufacturing brings more attention to its problems, and being the final product surface aspect, a known problem of this method, this research aims to find alternatives to the usual surface finishing techniques. The focus of this research then, was the surface quality of FFF products, and to analyze this quality, values of Surface Roughness (Ra) was used as a primary tool, being aided by microscopic pictures and F profiles from a profilometer. Another aspect of the research was the tensile strength analysis. It was considered important that this mechanical property was examined to understand the effects that the abrasive blasting treatment could bring to the additive manufactured products.
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084944205&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85084944205&origin=inward
  SCOPUS ID：85084944205
• Feed-rate prediction model in high speed machining for cutting force estimation　　　　　　　　　　　　　　　
  Ryo Satoh; Jun'Ichi Kaneko; Takeyuki Abe; Kenichiro Horio
  Proceedings of 2018 ISFA - 2018 International Symposium on Flexible Automation, 2018, [Reviewed]
  Copyright © 2018 by ISFA In recent days, high speed machining process is widely used to achieve efficient fabrication process for dies, mold and other mechanical parts. However, modern CNC controllers have problems with dynamic performance which have a great impact on accuracy and productivity. In the high-speed machining process, some factors such as jerk, acceleration, synchronizing of axis and small segment approximates the contours curve, could be a trigger of a break on feed-rate. Therefore, these problems make it difficult to predict instantaneous cutting force in actual manufacturing process. In this paper, we proposed new feed-rate prediction model in high speed machining process. The proposed model can consider influences of CNC interpolation in the small segment approximation. The simulation results show the proposed model can predict dynamic performance of feed-rate in the high-speed machining process.
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85084944383&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85084944383&origin=inward
  SCOPUS ID：85084944383
• Fabrication of lattice structures by wire and ARC-based additive manufacturing　　　　　　　　　　　　　　　
  Takeyuki Abe; Hiroyuki Sasahara
  European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 18th International Conference and Exhibition, EUSPEN 2018, First page：279, Last page：280, 2018, [Reviewed]
  © 2018 CURRAN-CONFERENCE. All rights reserved. Wire and arc-based additive manufacturing (AM) is one of the additive manufacturing technologies which applies the arc welding. This process is especially expected to be useful in fabricating large-sized die and prototype machine parts. Also, AM process is expected to make complicated shapes which cannot be made by conventional process. Building lattice structures inside a component enables to give light weight and high strength. Strut shapes have to be made to build lattice structures by wire and arc-based AM. In this study, the influence of process parameters on the built object geometry was investigated. As a result, arc discharge time has much influence on the layer height and diameter. Inclination angle had little influence on the dimension accuracy of the built object. Finally lattice structures were successfully built by wire and arc-based AM.
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85054497559&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85054497559&origin=inward
  SCOPUS ID：85054497559
• Effect of bonding conditions on the bonding strength in an aluminum bonding using ultrasonic vibrations and high-frequency induction heating in an atmosphere
  Osada, T.; Sonoya, K.; Abe, T.; Nakamura, M.; Goto, S.; Otagiri, S.
  Welding International, Volume：32, Number：8, First page：535, Last page：541, Aug. 2018, [Reviewed]
  © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. The needs of aluminium joints have grown in recent years. However, as aluminium forms strong oxide layers on the surface in an atmosphere, joining of these materials is difficult. This is why we conceived a new atmosphere solid-phase bonding method that uses high-frequency induction heating and ultrasonic vibration. The effects of ultrasonic vibration and bonding conditions on this new bonding method were investigated. As a result, we were able to confirm the efficacy of ultrasonic waves on bonding. The bonding mechanism of new bonding method was also clear.
  Scientific journal
  DOI：https://doi.org/10.1080/09507116.2017.1346898
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85058279548&origin=inward
  DOI ID：10.1080/09507116.2017.1346898, ISSN：0950-7116, eISSN：1754-2138, ORCID：58068091, SCOPUS ID：85058279548
• Material-property evaluation of magnesium alloys fabricated using wire-and-arc-based additive manufacturing　　　　　　　　　　　　　　　
  Takagi, H.; Sasahara, H.; Abe, T.; Sannomiya, H.; Nishiyama, S.; Ohta, S.; Nakamura, K.
  Additive Manufacturing, Volume：24, First page：498, Last page：507, Dec. 2018, [Reviewed]
  Material properties, such as porosity, tensile strength, and microstructure, of magnesium-alloy components fabricated using wire-and-arc-based additive-manufacturing techniques, which essentially represent a form of arc-welding technology have been examined. In the proposed method, the wire material is melted by arc discharge, and the molten metal is subsequently solidified and accumulated. Magnesium wire developed in this study facilitated fabrication of magnesium-alloy components using the said additive-manufacturing process. Subsequently, combinations of fabrication conditions, such as the welding current, torch feed speed, and cross feed of the torch, were explored, and suitable conditions for realizing a solid structure with fewer weld defects compared to those observed when using die-casting and other manufacturing methods, were determined. Tensile tests and microstructure observations were also performed to elucidate mechanical properties of magnesium alloy components fabricated via the said wire-and-arc-based technique. It was demonstrated that the fabricated object possesses sufficient tensile strength compared to the observed standard value of the bulk material. Furthermore, results from microstructure observations demonstrated that the higher the torch feed speed, the finer is the microstructure. Moreover, the observed microstructure at the boundary between the substrate and fabricated object was finer compared to that at the top layer.
  ELSEVIER, English, Scientific journal
  DOI：https://doi.org/10.1016/j.addma.2018.10.026
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85055629376&origin=inward
  DOI ID：10.1016/j.addma.2018.10.026, ISSN：2214-8604, eISSN：2214-7810, ORCID：58068090, SCOPUS ID：85055629376, Web of Science ID：WOS:000455068500053
• Development of the shell structure building simulator with two-dimensional bead model for wire and arc-based additive manufacturing　　　　　　　　　　　　　　　
  Takeyuki Abe; Hiroyuki Sasahara
  Proceedings of the 9th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2017, Nov. 2017, [Reviewed]
  Wire and arc-based additive manufacturing (AM) is one of the additive manufacturing which applies the arc welding technology. This process is especially expected to be useful in fabricating large-sized die and prototype machine parts. However, it is difficult to determine process parameters such as torch feed speed, welding current, welding voltage because the optimal process parameters depend on various factors such as material, target shape, deposition area condition. Estimation of the deposited metal shape in advance helps to determine appropriate process parameters. In this study, two-dimensional bead model for shell structure was proposed and built shape simulator was developed. Then, the accuracy of the simulator was investigated. As a result, accuracy of the simulator was about ±1mm in the area where the influence of deposition start and stop was small.
  International conference proceedings
  DOI：https://doi.org/10.1299/jsmelem.2017.9.016
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041333363&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85041333363&origin=inward
  DOI ID：10.1299/jsmelem.2017.9.016, SCOPUS ID：85041333363
• Study on wire and arc-based additive manufacturing　　　　　　　　　　　　　　　
  Abe, T.; Sasahara, H.
  Yosetsu Gakkai Shi/Journal of the Japan Welding Society, Volume：86, Number：7, First page：500, Last page：504, 2017
  JAPAN WELDING SOCIETY, Japanese, Scientific journal
  DOI：https://doi.org/10.2207/jjws.86.500
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85032437537&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85032437537&origin=inward
  DOI ID：10.2207/jjws.86.500, ISSN：0021-4787, CiNii Articles ID：130006171633, CiNii Books ID：AN00246019, ORCID：58068083, SCOPUS ID：85032437537
• 鋼板とアルミニウム合金板の異材抵抗スポット溶接部の引張強度に及ぼす溶接条件の影響　　　　　　　　　　　　　　　
  園家啓嗣*,望月舜,阿部壮志,中村正信
  軽金属溶接, Volume：4, Number：1, First page：4, Last page：11, 2016, [Reviewed]
  Scientific journal
• Evaluation of the Properties of Sprayed Thermal Barrier Coating Applied to the Piston Head　　　　　　　　　　　　　　　
  Masashi Sekine, Akira Kotani, Keiji Sonoya*, Takeyuki Abe, Masanobu Nakamura
  International Journal of Mechanical Engineering and Automation, Volume：3, Number：2, First page：47, Last page：54, 2016, [Reviewed]
  Scientific journal
• Development of direct forming method of friction material by thermal spraying　　　　　　　　　　　　　　　
  SONOYA Keiji; NAKAMURA Masanobu; ABE Takeyuki
  Jornal of Japan Thermal Spray Society, Volume：53, Number：3, First page：96, Last page：102, 2016
  Japan Thermal Spray Society, Japanese
  DOI：https://doi.org/10.11330/jtss.53.96
  DOI ID：10.11330/jtss.53.96, ISSN：0916-6076, CiNii Articles ID：130005411077, CiNii Books ID：AN10502250
• Dissimilar metal deposition with a stainless steel and nickel-based alloy using wire and arc-based additive manufacturing　　　　　　　　　　　　　　　
  Abe, T.; Sasahara, H.
  Precision Engineering, Volume：45, First page：387, Last page：395, Jul. 2016, [Reviewed]
  The wire and arc-based additive manufacturing process applies arc welding technology; the wire material is melted by the arc discharge, and is then accumulated successively in this process. The wire and arc based additive manufacturing process directly and locally adds material to the molten pool. By changing the material locally during the process, more than one kind of material can be used simultaneously in a single manufactured component. In this study, two kinds of dissimilar metal deposition were conducted. A combination used was a stainless steel and Ni-based alloy. Mechanical properties near the interface such as hardness and bond strength were investigated. As a result, it was found that the mechanical properties of the manufactured alloy were comparable to those of a bulk material. In addition, an additive manufacturing system and a torch path planning method for using more than two kinds of material were proposed. By using this method, highly functional shapes whose surfaces and inner structures are made of different material could be made. (C) 2016 Elsevier Inc. All rights reserved.
  ELSEVIER SCIENCE INC, English, Scientific journal
  DOI：https://doi.org/10.1016/j.precisioneng.2016.03.016
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84978323334&origin=inward
  DOI ID：10.1016/j.precisioneng.2016.03.016, ISSN：0141-6359, eISSN：1873-2372, ORCID：58068092, SCOPUS ID：84978323334, Web of Science ID：WOS:000376212000038
• Strength of laminated object of magnesium alloy fabricated by direct metal lamination using Arc discharge　　　　　　　　　　　　　　　
  Hisataka Takagi; Takeyuki Abe; Hiroki Sannomiya; Shinichiro Nishiyama; Shuichiro Ohta; Kunimitsu Nakamura; Hiroyuki Sasahara
  Proceedings of the 8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015, Oct. 2015, [Reviewed]
  The tensile strength of a magnesium alloy object manufactured by direct metal lamination was examined. Direct metal lamination is a kind of additive manufacturing process using arc welding technology, where wire metal is melted by the energy of the arc discharge and the molten metal is gradually accumulated. It has been shown that the additive manufacturing process can be realized using a magnesium alloy wire, while magnesium alloy powder is difficult to use for other additive manufacturing processes using laser power. In this research, it was shown that the magnesium alloy object fabricated by direct metal lamination has sufficient tensile strength compared with the bulk material.
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84974623786&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84974623786&origin=inward
  SCOPUS ID：84974623786
• Developing of the Aluminum Alloy Solid State Bonding Method in Atmosphere Using High Frequency Induction Heating and Ultrasonic Vibration　　　　　　　　　　　　　　　
  Tomoji Osada, Keiji Sonoya*, Takeyuki Abe, Masanobu Nakamura
  Universal Journal of Mechanical Engineering, Volume：4, Number：1, First page：1, Last page：7, 2015, [Reviewed]
  Scientific journal
• Mechanical properties evaluation of metal components repaired by direct metal lamination
  Takagi, H.; Abe, T.; Cui, P.; Sasahara, H.
  Key Engineering Materials, Volume：656-657, First page：440, Last page：445, 2015, [Reviewed]
  © (2015) Trans Tech Publications, Switzerland. Direct metal lamination using arc discharge was applied to the repair of metal components such as metallic parts, dies and molds by adding equivalent metal to them. In this method, a heat-affected zone which has different mechanical properties from the base metal is formed near the laminated metal. This is because the rapid temperature change by welding heat input can cause phase transformation or metallic structure change. Therefore, the mechanical properties of the laminated metal, heat-affected zone and base metal after the repair by the direct metal lamination need to be explored. In addition, the region which needs to be repaired must be removed in advance because worn and defective parts aren't adequate as the base for lamination of further layers. Thus, the most suitable removal shape for repair by the direct metal lamination was investigated. Finally, the hardness distribution and toughness of the metal components after repair was explored. It was found that the hardness distribution of metal components after repair was uneven. However, the toughness of the heat-affected zone was found to be comparable to those of the laminated metal and the base metal.
  Key Engineering Materials, Scientific journal
  DOI：https://doi.org/10.4028/www.scientific.net/KEM.656-657.440
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84952360806&origin=inward
  DOI ID：10.4028/www.scientific.net/KEM.656-657.440, ISSN：1013-9826, eISSN：1662-9795, ORCID：58068093, SCOPUS ID：84952360806
• Development of the shell structures fabrication CAM system for direct metal lamination using arc discharge-lamination height error compensation by torch feed speed control-　　　　　　　　　　　　　　　
  Abe, T.; Sasahara, H.
  International Journal of Precision Engineering and Manufacturing, Volume：16, Number：1, First page：171, Last page：176, Jan. 2015, [Reviewed]
  The direct metal lamination is a kind of the additive manufacturing process using the arc welding technology; where the molten metal made by the arc discharge is accumulated successively in this process. Overhanging shapes can be fabricated without support materials but lamination height error is caused in largely inclined area. In this paper, the lamination height error was estimated by using the accumulated metal shape model. Then, the lamination height error was compensated by changing welding torch feed speed so that the top surface of the laminated layer became horizontal. As a result, not only the lamination height error was decreased by 50%, but average inclination angle error was decreased by 50%.
  KOREAN SOC PRECISION ENG, English, Scientific journal
  DOI：https://doi.org/10.1007/s12541-015-0022-4
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84921023034&origin=inward
  DOI ID：10.1007/s12541-015-0022-4, ISSN：2234-7593, eISSN：2005-4602, ORCID：58068086, SCOPUS ID：84921023034, Web of Science ID：WOS:000348025700022
• Study on dissimilar metal fabrication with direct metal lamination by using arc discharge　　　　　　　　　　　　　　　
  Takeyuki Abe; Hiroyuki Sasahara
  Conference Proceedings - 14th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2014, Volume：1, First page：117, Last page：120, 2014, [Reviewed]
  The direct metal lamination is one of the additive manufacturing process using the arc welding technology; where the molten metal made by the arc discharge is accumulated successively in this process. In this study, two kinds of dissimilar metal fabrication were conducted. One is aluminium alloy and titanium alloy. Another is stainless steel and Ni based alloy. The boundaries of dissimilar metal structures were investigated. As a result, it is suggested the possibility of the fabrication with more than one kind of metallic material by direct metal lamination.
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84923207724&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84923207724&origin=inward
  SCOPUS ID：84923207724
• アーク放電を用いた溶融金属積層による造形物の強度　　　　　　　　　　　　　　　
  田中敬三、阿部壮志、吉丸玲欧、笹原弘之*
  日本機械学会論文集（C編）, Volume：79, Number：800, First page：272, Last page：282, 2013, [Reviewed]
  Scientific journal
• Strength of manufactured object made by direct metal lamination using arc discharge　　　　　　　　　　　　　　　
  Tanaka, K.; Abe, T.; Yoshimaru, R.; Sasahara, H.
  Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Volume：79, Number：800, First page：1168, Last page：1178, 2013, [Reviewed]
  The tensile strength of the solid structure fabricated by a direct metal lamination under various lamination conditions is examined. The direct metal lamination is a kind of the additive manufacturing process using the arc welding technology; where the molten metal made by the arc discharge is accumulated successively in this process. Combinations of lamination conditions such as welding current, torch feed speed and the cross feed of the torch are explored and the suitable conditions to realize a solid structure without weld defects are clarified. Then it is shown that the laminated modeling object has enough tensile strength compared with the same bulk material. In addition, the welding torch moving direction doesn't affect the strength of the object because the accumulated overlapping beads melt into each other under the suitable condition.
  The Japan Society of Mechanical Engineers, Japanese, Scientific journal
  DOI：https://doi.org/10.1299/kikaic.79.1168
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84876939510&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84876939510&origin=inward
  DOI ID：10.1299/kikaic.79.1168, ISSN：0387-5024, CiNii Articles ID：130003374994, ORCID：58068087, SCOPUS ID：84876939510
• Residual stress and deformation after finishing of a shell structure fabricated by direct metal lamination using arc discharge
  Abe, T.; Sasahara, H.
  International Journal of Automation Technology, Volume：6, Number：5, First page：611, Last page：617, 2012, [Reviewed]
  In this research, an arc welding technology has been applied to melt the metal, and the fabrication system for three dimensional metallic parts, direct metal lamination using arc discharge, has been developed. In this paper, residual stress in the shell structure fabricated by this direct metal rapid lamination and the deformation after the finishing process are investigated. As a result, it is clarified that heat input, cooling rate and height of the laminated modeling object are the governing parameters of the mechanism of residual stress formation. Dimension accuracy after the finishing process is influenced by the deformation caused by the residual stress release and the stiffness of the laminated modeling object.
  Scientific journal
  DOI：https://doi.org/10.20965/ijat.2012.p0611
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84883318044&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84883318044&origin=inward
  DOI ID：10.20965/ijat.2012.p0611, ISSN：1881-7629, eISSN：1883-8022, ORCID：58068084, SCOPUS ID：84866088583
• Influence of the cooling method of the molten pool on the laminating characteristics in direct metal lamination by using arc discharge　　　　　　　　　　　　　　　
  Kamioka, T.; Abe, T.; Ishikawa, S.; Sasahara, H.
  Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C, Volume：78, Number：785, First page：282, Last page：291, 2012
  Recently, the direct molding machine of the metal product is utilized, but the fabricating device and the materials are very expensive, also the kinds of the materials are limited, in comparison with the machining of bulk material. In this paper, a new metal laminating modeling by using an arc discharge is proposed to achieve the near-net-shape molding. On this process, as the heat input from arc discharge is large, some cooling should be necessary to prevent overheating of the fabricating product and the machine. But the cooling rate of the molten pool, where the molten metal is dropped from the tip of the welding torch, affects the shape of the fabricated product. Then the laminating characteristics of the two types of cooling, namely water cooling and an air cooling were investigated. It was shown that the laminating height becomes high and the width becomes narrow when the cooling rate of the molten pool is higher. These results can be helpful for higher modeling accuracy using this direct metal lamination process.
  The Japan Society of Mechanical Engineers, Scientific journal
  DOI：https://doi.org/10.1299/kikaic.78.282
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84859567720&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84859567720&origin=inward
  DOI ID：10.1299/kikaic.78.282, ISSN：0387-5024, CiNii Articles ID：130002051293, ORCID：58068089, SCOPUS ID：84859567720
• Accurate fabrication by improvement of lamination path on direct metal lamination using arc discharge　　　　　　　　　　　　　　　
  Takeyuki Abe; Masato Katagiri; Hiroyuki Sasahara
  Proceedings - ASPE 2012 Annual Meeting, Number：54, First page：296, Last page：299, 2012, [Reviewed]
  International conference proceedings
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84884172117&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84884172117&origin=inward
  SCOPUS ID：84884172117

• Material mixing ratio in MIM-based FDM using agar binder　　　　　　　　　　　　　　　
  ABE Takeyuki; SAKURAI Ayano; KANEKO Jun'ichi; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, Volume：2019, Number：0, First page：C14, 2019
  In FDM technology, which is performed by extruding a material from a heated nozzle using an MIM material, generally uses a resin material as a binder. This process requires degreasing and sintering steps to remove a binder after molding. The degreasing process is carried out in a dedicated apparatus using an organic solvent. In this study, using agar as a binder, it was possible to carry out degreasing and sintering processes continuously in the same furnace. In this report, the effect of material mixing ratio of metal powder, agar, and water on the density and hardness of shapes was clarified.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemmt.2019.13.C14
  DOI ID：10.1299/jsmemmt.2019.13.C14, CiNii Articles ID：130007836389
• Development of high precision grinding technology for irregularly shaped cutting edge of punch　　　　　　　　　　　　　　　
  SHIGEMURA Keitaro; YAMADA Hiroaki; KANEKO Jun'ichi; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, Volume：2019, Number：0, First page：C24, 2019
  In this research, I will present a high precision grinding technique of cutting edge of punch. This method performs finish grinding process planning method by simultaneous three-axis control of a conical grindstones on a machining center. Cutting edges of punch are tools used to cut out thin-walled shapes, it is necessary to limit the thickness of the tip of the cutting edge to 10 [µm] or less and to suppress a surface roughness of cutting edge, because the thickness and the surface roughness affect the generation of chips and cutting quality at the time of material cutting. I try to apply to an irregularly shaped cutting edge of punch processing condition of a straight blade that the surface roughness of the edge is suppressed by carrying out truing and the surface roughness can be further suppressed by grinding by a path tilted along the edge. As a result, it became possible to generate cutting edges of punch with complicated shapes by processing condition and tool path.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemmt.2019.13.C24
  DOI ID：10.1299/jsmemmt.2019.13.C24, CiNii Articles ID：130007836347
• Development suppress method of processing speed reduction by correction of turning axis command value in 5-axis control machining　　　　　　　　　　　　　　　
  NAKAMURA Takayuki; ICHIKAWA Kohei; HASEGAWA Masanobu; KANEKO Jun'ichi; ABE Takeyuki; HORIO Kenichi
  The Proceedings of The Manufacturing & Machine Tool Conference, Volume：2019, Number：0, First page：A39, 2019
  In recent cutting processes, 5-axis controlled machine tool has become essential as the shape of the work becomes complicated, and high efficiency by short-time machining under high feed conditions is required. However, in a machining plan based on a CAM system aiming to avoid interference, there is a problem that the actual feed speed does not reach the command value and the machining time becomes longer than expected. In this report, in machines with a trunnion stage type configuration, attention is paid to the jerk value of the turning axis, and propose the tool posture planning that restrain machining speed decrease by correction command value of turning axis.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemmt.2019.13.A39
  DOI ID：10.1299/jsmemmt.2019.13.A39, CiNii Articles ID：130007836338
• Development of a method for estimating the amount of displacement of a low-rigidity cutting object by machine learning:(Data set by image of processing conditions and displacement）　　　　　　　　　　　　　　　
  SUGITA Shumpei; KANEKO Junichi; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, Volume：2019, Number：0, First page：A38, 2019
  When estimating the effect of elastic deformation of a workpiece generated during machining on machining errors in machining of low rigidity objects, it is necessary to continuously carry out finite element analysis in the shape in the middle of machining and increase in calculation time becomes a problem. Then, in this study, was attempted to drastically reduce processing time by forming a data set obtained by making processing conditions and displacement distribution information after processing to two-dimensional image information, to develop a method guessing displacement distribution by machine learning. In this paper, we explain the results obtained for the shape of the blade.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemmt.2019.13.A38
  DOI ID：10.1299/jsmemmt.2019.13.A38, CiNii Articles ID：130007836337
• Accurate and fast tool path generation method for large-scale discrete shape data　　　　　　　　　　　　　　　
  Kaneko Junichi; Kitahara Hiromu; Abe Takeyuki; Horio Kenichiro
  Proceedings of JSPE Semestrial Meeting, Volume：2019, Number：0, First page：262, Last page：263, 2019
  

  Sculptured surface on large-scale dies with complex curved surface such as automobile body parts is usually fabricated by ball-end-mill using 3-axis NC milling machines. Normally, toolpath for machining products is generated by geometric calculation between product model and tool. However, if the product has a large and complex surface, number of polyhedrons approximating the product increases, so a calculation time becomes enormous. In past research, methods of geometric calculation using offset surface generation and the parallel processing function of GPU were proposed to solve this problem. However, these methods didn't consider error due to the approximation process and increase in memory usage. To reduce this geometric error and memory usage, we propose a new method for accurate offset surface generation. In this method, the offset surface is generated by vertices of the polyhedron constituting the product and the tool radius. This approach enables accurately calculating a height of the offset surface of the area approximated by the fine polygon shape while suppressing an increase in memory usage.

  
  The Japan Society for Precision Engineering, Japanese
  DOI：https://doi.org/10.11522/pscjspe.2019A.0_262
  DOI ID：10.11522/pscjspe.2019A.0_262, CiNii Articles ID：130007800785
• 加工領域を対象とした加工可能姿勢範囲の高速な導出による工具経路計画法の開発　　　　　　　　　　　　　　　
  秋山 瑞樹; 金子 順一; 阿部 壮志; 堀尾 健一郎
  Volume：2019, Number：0, First page：812, Last page：813, 2019
  

  多軸制御加工のCL計画では、工具経路を導出して切削点毎の姿勢を決定する。しかし加工面のフィード・ピック方向における工具姿勢の連続性を確保するには、工具姿勢を制約して計画することが望ましい。そこでUVパラメータで定義された加工面に対し、コンフィギュレーション空間での加工可能姿勢を導出し、経路を決定する新しい計画法を提案する。本報告では、加工可能姿勢範囲に対する加工面の色情報による可視化手法を述べる．

  
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2019S.0_812
  DOI ID：10.11522/pscjspe.2019S.0_812, CiNii Articles ID：130007702723
• Additive Manufacturing using Wire and Arc Discharge　　　　　　　　　　　　　　　
  笹原弘之,阿部壮志
  電気加工学会誌, Volume：52, Number：130, First page：71, Last page：78, Jul. 2018
  Japanese
  ISSN：0387-754X, CiNii Articles ID：40021651313, CiNii Books ID：AN00151681
• Development of complex shape rough machining system by multi-axis control WEDM　　　　　　　　　　　　　　　
  TAKAHATA Masahiro; KANEKO Jun'ichi; IRIGUCHI Kenji; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, Volume：2018, Number：0, First page：B10, 2018
  In recent years, new usage of Wire Electric Discharge Machining(WEDM) is expected for rough machining of difficult-to-cut materials such as aircraft parts. Therefore, we are developing new WEDM based on multi-axis control process. So, a new machine tool for multi-axis controlled WEDM process has been developed. The machine tool has 2-axis tilt and rotary tables and it can change the wire posture against workpiece surface. However, it is difficult to plan the path and the posture of wire avoiding the interference with the workpiece while continuously changing the posture. Thus, we propose a new planning method. This method is realized while solving the difficult problem.
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemmt.2018.12.B10
  DOI ID：10.1299/jsmemmt.2018.12.B10, CiNii Articles ID：130007637737
• Tool Posture Planning Method Considering with Change of Workpiece Shape with CNC Machining Process　　　　　　　　　　　　　　　
  KANEKO Jun'ichi; Watanabe Kento; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1310006, 2018
  

  This study proposed new automatic planning method for tool posture in multi axis controlled machining process to avoid collisions between the cutting tool and workpiece shape with unremoved volume in rough machining process. The proposed method sequentially judges the likelihood of collision between holder and shank parts of the cutting tool and the workpiece surface, which is changed by machining process. Then, continuous change of tool postures without collision is automatically determined. In the proposed method, an efficient algorithm for settings of tool posture candidates is proposed. By applying the proposed algorithm, it is possible to prevent rapid changes in tool posture at each cutter location, while reducing computation time for geometric calculation. In this paper we conduct experimental estimation about tool path of scanning path. In the planned results, the proposed method can generate continuous change of tool posture within several dozen milliseconds in each cutter location.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1310006
  DOI ID：10.1299/jsmemecj.2018.S1310006, CiNii Articles ID：130007620199
• Making Research Paper:(About the Use of the JSME Specification Template File)　　　　　　　　　　　　　　　
  KITAHARA Hiromu; KANEKO Jun'ichi; AJISAKA Masahiro; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of Mechanical Engineering Congress, Japan, Volume：2018, Number：0, First page：S1310001, 2018
  

  Sculptured surface on large-scale dies with complex curved surface such as automobile body parts is usually fabricated by ball-end-mill using 3-axis NC milling machines. Normally, toolpath for machining products is generated by geometric calculation between product model and tool. However, if the product has a large and complex surface, number of polyhedrons approximating the product increases, so a calculation time becomes enormous. In past research, methods of geometric calculation using offset surface generation and the parallel processing function of GPU were proposed to solve this problem. However, these methods didn't consider error due to the approximation process and increase in memory usage. To reduce this geometric error and memory usage, we propose a new method for accurate offset surface generation. In this method, the offset surface is generated by vertices of the polyhedron constituting the product and the tool radius. This approach enables accurately calculating a height of the offset surface of the area approximated by the fine polygon shape while suppressing an increase in memory usage.

  
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmemecj.2018.S1310001
  DOI ID：10.1299/jsmemecj.2018.S1310001, CiNii Articles ID：130007620179
• 多方向光学計測を統合した工具形状推定手法の開発　　　　　　　　　　　　　　　
  金子 真由美; 神永 昂周; 金子 順一; 片野 清彦; 阿部 壮志; 堀尾 健一郎
  Volume：2018, Number：0, First page：205, Last page：206, 2018
  

  近年NC切削加工においては，機械衝突の事前のコンピュータシミュレーションによる回避が広く行われている．しかし，工作機械主軸に装着された工具形状がシミュレーションのデータと実際の工具とで一致しない人為的ミスの発生が問題となっている．そこで本研究では，工作機械主軸に装着された工具をカメラで撮影し，複数画像から工具形状を推定することで，シミュレーションでの推定形状との差異を高速に比較する手法を開発した．

  
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2018A.0_205
  DOI ID：10.11522/pscjspe.2018A.0_205, CiNii Articles ID：130007602512
• 加工対象物の切削抵抗による変形を考慮した工具姿勢計画法の開発　　　　　　　　　　　　　　　
  大熊 優輝; 金子 順一; 堀尾 健一郎; 阿部 壮志
  Volume：2018, Number：0, First page：68, Last page：69, 2018
  

  ジェットエンジンのブレードに代表される薄肉形状部品の仕上げには切削加工が多用されており、切削に伴う切削抵抗による弾性変形が加工精度にもたらす影響の低減が課題となっている。そこで、本研究では、同時５軸制御加工において、ボールエンドミルによる工具姿勢の変化によって生じる切削抵抗の変化に注目し、ブレードの変形を最小化する工具姿勢を計算シミュレーションによって計画するシステムの開発を行った。

  
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2018A.0_68
  DOI ID：10.11522/pscjspe.2018A.0_68, CiNii Articles ID：130007602421
• 異形状工具に対応した走査線工具経路の高速生成アルゴリズムの開発　　　　　　　　　　　　　　　
  山岸 直人; 北原 広; 金子 順一; 鯵坂 昌広; 阿部 壮志; 堀尾 健一郎
  Volume：2018, Number：0, First page：70, Last page：71, 2018
  

  自動車用大型プレス金型の製作においては、高効率な切削工具の利用による加工時間の短縮が課題とされている。これに対して、近年、ブルノーズエンドミルやバレルエンドミルといった非球面状の切れ刃を持つ異形状工具の利用が注目されている。本報告では、これらの異形状工具を用いた大規模金型の仕上げ加工を対象として、走査線経路の座標導出を高速に実施する新しい並列演算手法について述べる。

  
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2018A.0_70
  DOI ID：10.11522/pscjspe.2018A.0_70, CiNii Articles ID：130007602277
• プラントへの機器搬入時支援システムの開発　　　　　　　　　　　　　　　
  中村 隆之; 金子 順一; 阿部 壮志; 堀尾 健一郎
  Volume：2018, Number：0, First page：56, Last page：57, 2018
  

  工場などの大規模施設に大型機器を搬入する際、搬入経路および機器の姿勢を検討し、搬入の可否の検証を事前に行う必要がある。しかし、建築用CAD等を用いる従来手法では、この検討と結果の確認に多くの労力を要するため省力化が求められている。そのため本報告では施設内部の計測点群データをもとに姿勢計画を短時間で行い、AR（拡張現実）表示によって計画結果の可否を確認する支援システムの開発について述べる。

  
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2018A.0_56
  DOI ID：10.11522/pscjspe.2018A.0_56, CiNii Articles ID：130007602047
• Deposited metal shape control using temperature simulation for wire and arc-based additive manufacturing　　　　　　　　　　　　　　　
  Abe Takeyuki; Kaneko Junichi; Horio Kenichiro; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, Volume：2018, Number：0, First page：418, Last page：419, 2018
  

  本研究ではワイヤ＋アーク放電によるアディティブ・マニュファクチャリングにおいて，造形物の形状精度向上のための最適な積層条件の導出方法の確立を目的とする．本プロセスの造形物温度および表面形状を模擬したシミュレーションにより溶着金属形状を推定し，これをもとに各予熱温度における最適な積層条件を導出した．造形物温度分布の推定結果に基づいて最適な積層条件を決定することで，溶着金属形状精度の向上を可能にした．

  
  The Japan Society for Precision Engineering, Japanese
  DOI：https://doi.org/10.11522/pscjspe.2018A.0_418
  DOI ID：10.11522/pscjspe.2018A.0_418, CiNii Articles ID：130007601841
• ワイヤ・アーク放電によるアディティブ・マニュファクチャリング　　　　　　　　　　　　　　　
  笹原弘之,阿部壮志
  機械の研究, Volume：69, Number：7, First page：568, Last page：576, Jul. 2017
  Japanese
  ISSN：0368-5713, CiNii Articles ID：40021247214, CiNii Books ID：AN00349838
• Dissimilar metal deposition using wire and arc-based additive manufacturing:Control of chemical component in deposited metal with filler wire　　　　　　　　　　　　　　　
  Abe Takeyuki; Mori Daiki; Sonoya Keiji; Nakamura Masanobu; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, Volume：2017, Number：0, First page：569, Last page：570, 2017
  本研究ではワイヤ＋アーク放電によるアディティブ・マニュファクチャリングによる異種金属積層造形物において，異種金属界面に生じる残留応力や熱応力低減を目的として，界面に溶着金属成分を制御した中間層を形成した．これにより界面周辺の溶着金属成分の急激な変化を抑制した．溶着金属成分を制御するために，MIG/MAG溶接トーチから供給されるワイヤとは異なる材料をフィラーワイヤとして側方から溶融池に挿入する造形法を検証した．
  The Japan Society for Precision Engineering, Japanese
  DOI：https://doi.org/10.11522/pscjspe.2017A.0_569
  DOI ID：10.11522/pscjspe.2017A.0_569, CiNii Articles ID：130006434469
• Effect of Bonding Conditions on the Bonding Strength in an Aluminum Bonding using Ultrasonic Vibrations and High-Frequency Induction Heatingin an Atmosphere　　　　　　　　　　　　　　　
  Osada Tomoji; Sonoya Keiji; Abe Takeyuki; Nakamura Masanobu; Goto Sonhuko; Otagiri Saki
  Journal of Light Metal Welding, Volume：55, Number：2, First page：63, Last page：69, 2017
  

  The needs of aluminum joints have grown in recent years. However, as aluminum forms strong oxide layers on the surface in an atmosphere, joining of these materials is di‹cult. This is where we conceived of a new inatmosphere solid phase bonding method which uses high-frequency induction heating and ultrasonic vibration. The effects of ultrasonic vibration and bonding conditions on this new bonding method were investigated. As the results, we were able to confirm the effcacy of ultrasonic waves on bonding. The bonding mechanism of new bonding method was also clear.

  
  Japan Light Metal Welding Association, Japanese
  DOI ID：10.11283/jlwa.55.63, ISSN：0368-5306, CiNii Articles ID：130005397398, CiNii Books ID：AN00314764
• Effect of welding conditions on the tensile strength of resistance spot welded joint of steel sheet to aluminum alloy sheet　　　　　　　　　　　　　　　
  園家 啓嗣; 望月 舜; 阿部 壮志; 中村 正信
  Volume：54, Number：12, First page：460, Last page：467, Dec. 2016
  Japanese
  ISSN：0368-5306, CiNii Articles ID：40021033846, CiNii Books ID：AN00314764
• Development of Solid State Bonding Technology for the Aluminum Alloy in Atmosphere by Using High Frequency Induction Heating and Ultrasonic Vibration　　　　　　　　　　　　　　　
  長田 智司; 園家 啓嗣; 阿部 壮志; 中村 正信; 宮川 和幸
  Volume：67, Number：5, First page：297, Last page：302, May 2016
  Japanese
  ISSN：0387-1029, CiNii Articles ID：40020861720, CiNii Books ID：AN00045480
• The effects of spot welding conditions on strength of dissimilar joints in mild steel and aluminum alloy　　　　　　　　　　　　　　　
  QISTINA ZARIEF; ABE Takeyuki; SONOYA Keiji; NAKAMURA Masanobu; HIGUCHI Daisuke
  The Proceedings of Yamanashi District Conference, Volume：2016, Number：0, First page：107, Last page：107, 2016
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeyamanashi.2016.107
  DOI ID：10.1299/jsmeyamanashi.2016.107, CiNii Articles ID：130007088346
• Evaluation of Thermal Properties of Thermal Sprayed Coating for Piston Head　　　　　　　　　　　　　　　
  SEKINE Masashi; SONOYA Keiji; NAKAMURA Masanobu; ABE Takeyuki
  The Proceedings of Yamanashi District Conference, Volume：2016, Number：0, First page：355, Last page：355, 2016
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeyamanashi.2016.355
  DOI ID：10.1299/jsmeyamanashi.2016.355, CiNii Articles ID：130007088275
• Evaluation of strength of the solid state bonding in the atmosphere of A1070 with ultrasonic vibration　　　　　　　　　　　　　　　
  GOTO Shuko; ODAGIRI Saki; OSADA Tomoji; SONOYA Keiji; ABE Takeyuki; NAKAMURA Masanobu
  The Proceedings of Yamanashi District Conference, Volume：2016, Number：0, First page：302, Last page：302, 2016
  The Japan Society of Mechanical Engineers, Japanese
  DOI：https://doi.org/10.1299/jsmeyamanashi.2016.302
  DOI ID：10.1299/jsmeyamanashi.2016.302, CiNii Articles ID：130007088228
• The Effects of Ultrasonic Vibration and Temperature on In-Atmosphere Solid State Bonding of A1070.　　　　　　　　　　　　　　　
  OSADA Tomoji; GOTO Shuko; SONOYA keiji; ABE Takeyuki; NAKAMURA Masanobu
  Preprints of the National Meeting of JWS, Volume：2016, Number：0, First page：306, Last page：307, 2016
  強靭な酸化皮膜をもつアルミニウムは難接合材である．近年，新たな接合方法も試みられているが，コストや環境の制約がある．そこで超音波振動および高周波誘導加熱を用いて大気中でアルミニウムを短時間に接合する方法を考案した．その接合法における超音波振動及び接合温度の影響を検討した．
  JAPAN WELDING SOCIETY, Japanese
  DOI：https://doi.org/10.14920/jwstaikai.2016f.0_306
  DOI ID：10.14920/jwstaikai.2016f.0_306, CiNii Articles ID：130005435825
• ワイヤ＋アーク放電によるアディティブ・マニュファクチャリングのための造形形状シミュレータの開発:ビード形状の2次元モデルによるシェル形状造形物の推定　　　　　　　　　　　　　　　
  阿部 壮志; 笹原 弘之
  Volume：2016, Number：0, First page：315, Last page：316, 2016
  本研究ではワイヤ＋アーク放電によるアディティブ・マニュファクチャリングの造形精度の向上のために，積層パスだけでなく，目標形状に対して適切な積層条件を出力可能なCAMの開発を目的とする．本報告では2次元ビード形状モデルを提案し，シェル構造物の造形形状を予測するシミュレータの開発および形状予測精度の検証を行った．
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2016A.0_315
  DOI ID：10.11522/pscjspe.2016A.0_315, CiNii Articles ID：130005244172
• Evaluation of weld structure on the tensile strength of resistant spot welding of mild steel to aluminum alloy　　　　　　　　　　　　　　　
  Abe Takeyuki; Mochizuki Shun; Sonoya Keiji; Nakamura Masanobu; Higuti Daisuke
  Preprints of the National Meeting of JWS, Volume：2016, Number：0, First page：132, Last page：133, 2016
  現在，自動車の主要な接合プロセスであるスポット溶接法に注目し，軟鋼とアルミニウム合金のスポット溶接における溶接部の強度低下の原因を調べるため，スポット溶接条件が強度に及ぼす影響について評価した．その結果，スポット溶接条件の変化によって継手強度が変化した．SEM像などの観察結果より，IMCなど，複数の組織変化が見られた．
  JAPAN WELDING SOCIETY, Japanese
  DOI：https://doi.org/10.14920/jwstaikai.2016s.0_132
  DOI ID：10.14920/jwstaikai.2016s.0_132, CiNii Articles ID：130005169860
• GS0401 Development of bonding method of the aluminum alloy in atmosphere with a high frequency induction heating and an ultrasonic vibration　　　　　　　　　　　　　　　
  GOTO Shuko; ANAYAMA Tenchi; OSADA Tomoji; SONOYA Keiji; ABE Takeyuki; NAKAMURA Masanobu
  The Proceedings of Conference of Kanto Branch, Volume：2016, Number：0, First page：_GS0401, Last page：1_-_GS0401-2_, 2016
  The purpose of this research is to develop the technology for aluminum alloy is weld in short time and a little change shape in atmosphere. It was welded using high frequency induction heating and ultrasonic vibration for it. As a result, when applying the ultrasonic vibration to the bonding portion, the tensile strength increases with junction temperature. When applying the ultrasonic vibration to the bonding portion, it increases in the tensile strength more than the case when isn't applied to the ultrasonic vibration. This is ultrasonic vibration destroys oxide layer of aluminum alloy, and to make a joint surface generate more material flow.
  The Japan Society of Mechanical Engineers, Japanese
  DOI ID：10.1299/jsmekanto.2016.22._GS0401-1_, CiNii Articles ID：110010049948, CiNii Books ID：AA11902161
• Development of the direct metal lamination system by using arc discharge:Bond strength of laminated object made of Ni based alloy and stainless steel　　　　　　　　　　　　　　　
  Abe Takeyuki; Sasahara Hiroyuki; Sonoya Keiji
  Preprints of the National Meeting of JWS, Volume：2015, Number：0, First page：376, Last page：377, 2015
  本研究ではMIG・MAG溶接技術で用いられるアーク放電により金属を溶融する技術に着目し，溶融させた金属を滴下，凝固させ三次元積層を行う溶融金属積層法を発展させている．本手法を用いて，複数種類の金属材料を積層する造形装置および造形手法を開発し，その造形物の接合強度を調査した．
  JAPAN WELDING SOCIETY, Japanese
  DOI：https://doi.org/10.14920/jwstaikai.2015f.0_376
  DOI ID：10.14920/jwstaikai.2015f.0_376, CiNii Articles ID：130005490499
• 溶融金属積層により造形したマグネシウム合金の引張特性調査　　　　　　　　　　　　　　　
  高木 悠貴; 阿部 壮志; 三宮 大喜; 西山 新一郎; 大田 秀一郎; 中村 国光; 笹原 弘之
  Volume：2015, Number：0, First page：537, Last page：538, 2015
  本研究では，アーク溶接技術を用いて3次元造形を行う溶融金属積層法により，従来のアデティブ・マニュファクチャリング技術では実現されていない，マグネシウム合金を用いた積層造形を可能とし，造形物の引張強度，0.2%耐力，伸びを調査した．その結果，引張強度は同等なバルク材と比べ同等な強度を有することが明らかになった．一方，0.2%耐力は同等なバルク材に比べ低い値となり，伸びは高い値であることが明らかになった．
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2015A.0_537
  DOI ID：10.11522/pscjspe.2015A.0_537, CiNii Articles ID：130005486874
• 160 Development of the aluminum alloy solid state bonding method in atmosphere with a high frequency induction heating and an ultrasonic vibration　　　　　　　　　　　　　　　
  ANAYAMA Tenchi; GOTO Shuko; ABE Takeyuki; NAKAMURA Masanobu; SONOYA Keiji; OSADA Tomoji
  The Proceedings of Yamanashi District Conference, Volume：2015, Number：0, First page：42, Last page：43, 2015
  The Japan Society of Mechanical Engineers, Japanese
  DOI ID：10.1299/jsmeyamanashi.2015.42, CiNii Articles ID：110010053755, CiNii Books ID：AN10553987
• 201 Characterization of Thermal Sprayed Coatings for the Piston　　　　　　　　　　　　　　　
  KOTANI Akira; SEKINE Masashi; SONOYA Keiji; NAKAMURA Masanobu; ABE Takeyuki
  The Proceedings of Yamanashi District Conference, Volume：2015, Number：0, First page：44, Last page：45, 2015
  The Japan Society of Mechanical Engineers, Japanese
  DOI ID：10.1299/jsmeyamanashi.2015.44, CiNii Articles ID：110010053756, CiNii Books ID：AN10553987
• 202 Development of Friction Material Formation method by Thermal Spraying　　　　　　　　　　　　　　　
  SAKAMOTO Takuya; ABE Takeyuki; SONOYA Keiji; NAKAMURA Masanobu
  The Proceedings of Yamanashi District Conference, Volume：2015, Number：0, First page：46, Last page：47, 2015
  The Japan Society of Mechanical Engineers, Japanese
  DOI ID：10.1299/jsmeyamanashi.2015.46, CiNii Articles ID：110010053757, CiNii Books ID：AN10553987
• 203 Assessment of resistant spot welding of mild steel to aluminum alloy　　　　　　　　　　　　　　　
  MOTIZUKI Shun; ABE Takeyuki; SONOYA Keiji; NAKAMURA Masanobu; HIGUTI Daisuke
  The Proceedings of Yamanashi District Conference, Volume：2015, Number：0, First page：48, Last page：49, 2015
  The Japan Society of Mechanical Engineers, Japanese
  DOI ID：10.1299/jsmeyamanashi.2015.48, CiNii Articles ID：110010053758, CiNii Books ID：AN10553987
• C43 Development of the direct metal lamination system by using arc discharge : Fabrication with dissimilar metal　　　　　　　　　　　　　　　
  ABE Takeyuki; SASAHARA Hiroyuki
  The Proceedings of The Manufacturing & Machine Tool Conference, Volume：2014, Number：0, First page：199, Last page：200, 2014
  The direct metal lamination is one of the additive manufacturing processes using the arc welding technology; where the molten metal made by the arc discharge is accumulated successively in this process. In this study, two kinds of dissimilar metal fabrication were conducted. One combination is an aluminum alloy and a titanium alloy. Another is a stainless steel and a Ni based alloy. The boundaries of dissimilar metal structures were investigated. As a result, the potential of the fabrication with more than one kind of metallic material by direct metal lamination is shown.
  The Japan Society of Mechanical Engineers, Japanese
  DOI ID：10.1299/jsmemmt.2014.10.199, CiNii Articles ID：110009939364, CiNii Books ID：AA11902343
• アーク放電を用いた溶融金属積層のためのCAMシステム開発:積層高さ制御によるオーバーハング形状造形　　　　　　　　　　　　　　　
  阿部 壮志; 笹原 弘之
  Volume：2013, Number：0, First page：187, Last page：188, 2013
  本研究では溶接技術で用いられるアーク放電により金属を溶融する技術に着目し，溶融させた金属を滴下，凝固させ三次元積層を行う溶融金属積層法を発展させている．本手法ではオーバーハング形状を迅速に造形可能であるが，傾斜角度によって積層高さが異なるため，造形精度が低下し，複雑なオーバーハング形状の造形が困難である．そこで，積層高さ誤差をトーチ送り速度制御により補正することで複雑形状の造形を可能にした．
  Japanese
  DOI：https://doi.org/10.11522/pscjspe.2013A.0.187.0
  DOI ID：10.11522/pscjspe.2013A.0.187.0, CiNii Articles ID：130004661091
• Development of the Fabrication Method for Solid Structure on Direct Metal Lamination Using Arc Discharge　　　　　　　　　　　　　　　
  Abe Takeyuki; Yoshimaru Reo; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, Volume：2012, Number：0, First page：775, Last page：776, 2012
  本研究では溶接技術で用いられるアーク放電により金属を溶融する技術に着目し，溶融させた金属を滴下，凝固させ三次元積層を行う溶融金属積層法を発展させている．本手法を用いてソリッド構造を造形する際の積層条件と引張強度の関係を調査した．その結果，積層方向は強度にほとんど影響を与えず，低入熱条件ほど強度が高いことを明らかにした．本試験結果から適切な積層条件を用いてソリッド構造を造形するCAMを開発した．
  The Japan Society for Precision Engineering, Japanese
  DOI：https://doi.org/10.11522/pscjspe.2012A.0.775.0
  DOI ID：10.11522/pscjspe.2012A.0.775.0, CiNii Articles ID：130004660921
• Study on Residual Stress and deformation of Shell Structure Fabricated by Direct Metal Lamination Using Arc Discharge　　　　　　　　　　　　　　　
  Abe Takeyuki; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, Volume：2011, Number：0, First page：936, Last page：937, 2011
  In this research, an arc welding technology has been applied to melt the metal, and the fabrication system for three dimensional metallic parts, direct metal lamination using arc discharge, has been developed. In this paper, the relationship between residual stress in the shell structure and temperature distribution in the shell structure after lamination is investigated. As a result, it is clarified that residual stress is small under the condition that temperature in the shell structure is high. In addition, temperature distribution can be controlled by heat input conditions and cooling method. The residual stress distribution is formed by non-uniform compressive plastic strain distribution. The plastic deformation is caused by temperature distribution.
  The Japan Society for Precision Engineering
  DOI：https://doi.org/10.11522/pscjspe.2011A.0.936.0
  DOI ID：10.11522/pscjspe.2011A.0.936.0, CiNii Articles ID：130004660511

• Investigation of the influence of base metal size on residual stress and deformation in directed energy deposition　　　　　　　　　　　　　　　
  Kaito Sekiguchi; Yuichiro Miyata; Shogo Sugimoto; Takeyuki Abe; Jun’ichi Kaneko
  The 20th International Conference on Precision Engineering, Nov. 2024
  English, Oral presentation
• 6自由度垂直多関節ロボットを用いた加工作業における関節軸の躍度制約を考慮した手先姿勢修正法　　　　　　　　　　　　　　　
  先﨑拓真,金子順一,阿部壮志
  May 2024, [Domestic conference]
• ワイヤ＋アーク放電によるアディティブマニュファクチャリングにおけるシールドガスが造形物形状に与える影響の調査　　　　　　　　　　　　　　　
  中本匠,阿部壮志,金子順一
  May 2024, [Domestic conference]
• Development of precision analysis method of tooth profile in gear skiving process with shape projection of removal area　　　　　　　　　　　　　　　
  Hiroki YONEZAWA,Jun’ichi KANEKO,Takeyuki Abe,Naruhiro IRINO, Yuta SHINBA, Yasuhiro IMABEPPU
  Dec. 2023, [International conference]
• Optimization method of NC command for feature line shape considering acceleration/deceleration characteristic of CNC machine tool　　　　　　　　　　　　　　　
  Toshihiro KURODA,Jun’ichi Kaneko,Takeyuki Abe
  Dec. 2023, [International conference]
• Study on the influence of the dendritic microstructure on the turning of WAAM Inconel 718　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos,Youhei Kujirai,Jun’ichi Kaneko,Takeyuki Abe
  Dec. 2023, [International conference]
• Elastic deformation of aluminum bronze / duplex stainless composite structures by wire arc additive manufacturing　　　　　　　　　　　　　　　
  Kanta SAITO,Takeyuki Abe,Jun’ichi Kaneko
  Dec. 2023, [International conference]
• Investigation of the relationship between electric power and deposited metal width in wire additive manufacturing using Joule heating　　　　　　　　　　　　　　　
  Naoki Koyama,Takeyuki Abe,Jun’ichi Kaneko,, , ,
  Dec. 2023, [International conference]
• Process planning for hybrid manufacturing based on base metal dimension and material consumption　　　　　　　　　　　　　　　
  Takeyuki Abe,Tomoaki Kataoka,Jun’ichi Kaneko
  Dec. 2023, [International conference]
• Support geometry position and removal sequence planning method considering loaded force during support removal for additive manufacturing products　　　　　　　　　　　　　　　
  Jun’ichi KANEKO,Takumi Osato,Takeyuki Abe
  Dec. 2023, [International conference]
• Development of precision analysis method of tooth profile in gear skiving process with shape projection of removal area　　　　　　　　　　　　　　　
  Hiroki YONEZAWA Jun’ichi KANEKO Takeyuki Abe Naruhiro IRINO Yuta SHINBA Yasuhiro IMABEPPU
  Dec. 2023, [International conference]
• ウィービングを用いたWAAMによるAl合金上への純Ti層の形成　　　　　　　　　　　　　　　
  中島健太郎,永松秀朗,笹原弘之,阿部壮志
  Sep. 2023, [Domestic conference]
• 6自由度垂直多関節ロボットを用いた加工作業における関節軸の躍度制約を考慮した手先姿勢修正法　　　　　　　　　　　　　　　
  先﨑拓真 金子順一 阿部壮志
  Sep. 2023, [Domestic conference]
• A Spherical Test Artifact to Evaluate Three-Dimensional Form Accuracy for Wire Arc Additive Manufacturing　　　　　　　　　　　　　　　
  Sakufu Ko,Takayuki Sagawa,Yuka Yamagata,Shigeru Aoki, Takeyuki Abe
  Aug. 2023, [International conference]
• A Spherical Test Artifact to Evaluate Three-Dimensional Form Accuracy for Wire Arc Additive Manufacturing　　　　　　　　　　　　　　　
  Sakufu Ko Takayuki Sagawa Yuka Yamagata Shigeru Aoki Takeyuki Abe
  Aug. 2023, [International conference]
• Analysis of the influences of different Tool Postures on the Machinability of WAAM Inconel 718　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos, Jun'ichi Kaneko, Takeyuki Abe
  Dec. 2022, [International conference]
• Alternation sequence planning and process time estimation for hybrid additive and subtractive manufacturing　　　　　　　　　　　　　　　
  Akira Nishiyama, Tomoaki Kataoka, Shun Kayashima, Nobuyuki Sumi, Takashi Hashimoto, Takeyuki Abe, Jun'ichi Kaneko
  Dec. 2022, [International conference]
• Improvement of joint strength of wire and arc additive manufactured titanium and aluminum dissimilar alloys　　　　　　　　　　　　　　　
  Hideaki Nagamatsu, Kentaro Nakajima, Takeyuki Abe, Hiroyuki Sasahara
  Dec. 2022, [International conference]
• Influence of cooling temperature on CuSn alloy by wire and arc additive manufacturing with pure copper mold　　　　　　　　　　　　　　　
  Kango Okabe, Naoya Katagiri, Takahumi Hanai, Masanori Kubota, Takeyuki Abe, Jun'ichi Kaneko
  Dec. 2022, [International conference]
• Optimization of machine tool motion for finish machining process of turbine blade considering geometric failure on polygon data of workpiece shape　　　　　　　　　　　　　　　
  Jun'ichi Kaneko, Yuki Hanada, Takeyuki Abe
  Nov. 2022, [International conference]
• 数値制御工作機械の加減速特性を考慮したフィーチャーライン形状工具通過時の速度指令計画　　　　　　　　　　　　　　　
  黒田敏弘,金子順一,阿部壮志
  Nov. 2022, [Domestic conference]
• Development of process planning support system combining additive manufacturing and subtractive manufacturing　　　　　　　　　　　　　　　
  Akira Nishiyama, Tomoaki Kataoka, Shun Kayashima, Nobuyuki Sumi, Takashi Hashimoto, Takeyuki Abe, Jun'ichi Kaneko
  Nov. 2022, [International conference]
• スカイビング加工の除去領域解析における軸交差角の影響を考慮した角速度補正による歯面形状評価の精度向上　　　　　　　　　　　　　　　
  米澤大輝,金子順一,阿部壮志
  Oct. 2022, [Domestic conference]
• 旋削加工における工具すくい角の変化による切りくずの分断　　　　　　　　　　　　　　　
  木戸達哉,金子順一,阿部壮志
  Oct. 2022, [Domestic conference]
• ワイヤ＋アーク放電によるA5356金属積層造形物の表面形状と圧縮強度の評価　　　　　　　　　　　　　　　
  櫻井由世,仁田脇雅史,山縣侑加,洪策符,阿部壮志,金子順一
  Oct. 2022, [Domestic conference]
• ワイヤ＋アーク放電によるアディティブマニュファクチャリングを用いた傾斜を有する形状のための積層経路の検討　　　　　　　　　　　　　　　
  高橋雄大,山縣侑加,洪策符,阿部壮志,金子順一
  Oct. 2022, [Domestic conference]
• 数値制御工作機械の加減速特性を考慮した形状誤差制御のための送り速度計画手法　　　　　　　　　　　　　　　
  黒田敏弘,金子順一,阿部壮志
  Oct. 2022, [Domestic conference]
• 薄肉部品の切削力による弾性変形を考慮した把持計画手法の開発　　　　　　　　　　　　　　　
  近藤翔太,金子順一,阿部壮志
  Oct. 2022, [Domestic conference]
• 金属積層造形のサポート形状除去時の負荷力を考慮したサポート形状の配置・除去順序計画　　　　　　　　　　　　　　　
  大里匠海,金子順一,阿部壮志
  Oct. 2022, [Domestic conference]
• DED方式金属積層における熱履歴情報を考慮した造形経路計画アルゴリズムの開発　　　　　　　　　　　　　　　
  加藤麗音,金子順一,阿部壮志,金子弘樹,入口健二
  Oct. 2022, [Domestic conference]
• 研削加工における画像処理を用いて計測した火花と研削エネルギーの関係　　　　　　　　　　　　　　　
  小島拓泰,阿部壮志,金子順一
  Oct. 2022, [Domestic conference]
• Feasibility Study of Large-Sized Aluminum Facades by Using Wire Arc Additive Manufacturing　　　　　　　　　　　　　　　
  Yuka Yamagata, Takayuki Sagawa, Masashi Nitawaki, Takeyuki Abe
  Jul. 2022, [International conference]
• ワイヤ+アーク方式金属 3D プリンタを用いた大型アルミ部材の造形　　　　　　　　　　　　　　　
  山縣侑加,佐川隆之,仁田脇雅史,阿部壮志
  Jun. 2022, [Domestic conference]
• 多軸制御工作機械の軸動作の加減速を考慮した経路修正アルゴリズムの開発　　　　　　　　　　　　　　　
  花田悠輝,金子順一,阿部壮志
  May 2022, [Domestic conference]
• Analysis of the Heat treatment effects on Inconel 718 products manufactured with the Wire and Arc Additive Manufacturing Technique　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos, Jun'ichi Kaneko, Takeyuki Abe
  Dec. 2021, [International conference]
• Mechanical properties of SUS329J4L fabricated by wire and arc additive manufacturing　　　　　　　　　　　　　　　
  Kota Sugimoto, Yoritomo Ueda, Takeyuki Abe, Jun'ichi Kaneko
  Dec. 2021, [International conference]
• Mechanical properties and joining state in wire and arc additive manufacturing of Al-Si/Mg-Al-Zn dissimilar alloys　　　　　　　　　　　　　　　
  Tomoyasu Shimada, Hideaki Nagamatsu, Takeyuki Abe, Jun'ichi Kaneko, Hiroyuki Sasahara
  Dec. 2021, [International conference]
• ワイヤ＋アーク放電によるAMと仕上げ同時加工を用いた内部組織制御技術の開発　　　　　　　　　　　　　　　
  仲田悠,阿部壮志,金子順一
  Jun. 2021, [Domestic conference]
• Microstructure and welding penetration of wire and arc additive manufactured Pure Titanium and A5356 dissimilar alloys using cold metal transfer welding　　　　　　　　　　　　　　　
  Hideaki Nagamatsu, Hiroyuki Sasahara, Takeyuki Abe
  Jun. 2021, [International conference]
• ワイヤ+アーク放電を用いた金属積層造形によるCuSn合金の材料特性制御技術の開発　　　　　　　　　　　　　　　
  間船雄太,片桐直弥,花井孝文,久保田優典,阿部壮志,金子順一
  Mar. 2021, [Domestic conference]
• ワイヤ＋アーク放電によるアディティブ・マニュファクチャリングを用いたMg合金-Al合金積層におけるAl合金Si添加量の影響　　　　　　　　　　　　　　　
  嶋田大祥,永松秀朗,阿部壮志,金子順一,笹原弘之
  Mar. 2021, [Domestic conference]
• 多軸工具姿勢制御によるトムソン刃のヘリカルスキャン研削技術の開発　　　　　　　　　　　　　　　
  重村佳太郎,金子順一,阿部壮志
  Mar. 2021, [Domestic conference]
• Improvement in microstructure by wire arc additive manufacturing with finishing process　　　　　　　　　　　　　　　
  Yu Nakata, Jun'inchi Kaneko, Takeyuki Abe
  Nov. 2020, [International conference]
• Modeling and control for preventing stubbing or droplets in Laser Metal-wire Deposition process　　　　　　　　　　　　　　　
  Shun Kayashima, Takashi Hashimoto, Takeyuki Abe, Jun'ichi Kaneko
  Nov. 2020, [International conference]
• Analysis of the Machinability and Machining effects on Properties of Inconel 718 Additive Manufacturing Products　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos, Jun'inchi Kaneko, Takeyuki Abe
  Nov. 2020, [International conference]
• Development of tool shape estimation system with integrated multi-directional silhouette measurement　　　　　　　　　　　　　　　
  Jun'inchi Kaneko, Mayumi Kaneko, Takeyuki Abe
  Nov. 2020, [International conference]
• WAAMのための温度センシングによる入熱制御 -ビード形状シミュレーションを用いた入熱条件の決定-　　　　　　　　　　　　　　　
  阿部壮志,金子順一,笹原弘之
  Sep. 2020, [Domestic conference]
• Development of tool path generation method for complex deep groove shape with simultaneous 4-axis machining　　　　　　　　　　　　　　　
  Kohei ichikawa, Takayuki Nakamura, Jun'inchi Kaneko, Masanobu Hasegawa, Takeyuki Abe
  Sep. 2020, [International conference]
• Tool posture planning method for low rigidity workpiece considering elastic deformation caused by cutting force　　　　　　　　　　　　　　　
  Jun'inchi Kaneko, Yuki Okuma, Shumpei Sugita, Takeyuki Abe
  Sep. 2020, [International conference]
• Optimization method of rotational axis motion in 5-axis controlled machining to keep command tool feed rate　　　　　　　　　　　　　　　
  Takayuki Nakamura, Kohei ichikawa, Masanobu Hasegawa, Jun'inchi Kaneko, Takeyuki Abe
  Sep. 2020, [International conference]
• WAAMによる中実形状造形のための積層条件決定支援ソフトウェア開発　　　　　　　　　　　　　　　
  井口玲良,阿部壮志,金子順一
  Jun. 2020, [Domestic conference]
• WAAMと切削による複合加工のための工程設計法の開発　　　　　　　　　　　　　　　
  片岡倫明,阿部壮志,金子順一
  Jun. 2020, [Domestic conference]
• 金属積層造形を対象としたノズル経路・姿勢計画手法　　　　　　　　　　　　　　　
  金子順一,秋山瑞樹,阿部壮志
  Mar. 2020, [Domestic conference]
• Deposited metal shape control based on numerical simulation for wire and arc additive manufacturing　　　　　　　　　　　　　　　
  Takeyuki Abe, Jun’ichi Kaneko, Hiroyuki Sasahara
  Nov. 2019, [International conference]
• Development of a Multi-axis controlled automated system for the Abrasive Blasting of FDM 3D printed Products　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos, Jun'Ichi Kaneko, Takeyuki Abe, Kenichiro Horio
  Nov. 2019, [International conference]
• 機械学習による低剛性の切削加工対象物の変位量推定手法の開発　　　　　　　　　　　　　　　
  杉田俊平,金子順一,阿部壮志,掘尾健一郎
  Oct. 2019, [Domestic conference]
• 寒天を用いたMIMベースFDMにおける材料混合比の検討　　　　　　　　　　　　　　　
  阿部壮志,櫻井彩乃,金子順一,堀尾健一郎
  Oct. 2019, [Domestic conference]
• 低剛性物体の切削抵抗による変形を考慮した工具姿勢計画　　　　　　　　　　　　　　　
  大熊優輝,金子順一,阿部壮志,掘尾健一郎
  Sep. 2019, [Domestic conference]
• ワイヤーアーク方式による金属AMの特徴と適用例　　　　　　　　　　　　　　　
  Sep. 2019, [Domestic conference]
• プラントへの機器搬入計画支援システムの開発　　　　　　　　　　　　　　　
  中村隆之,金子順一,阿部壮志,堀尾健一郎
  Aug. 2019, [Domestic conference]
• 複雑形状金型加工における経路点間隔を考慮に入れた工具経路生成アルゴリズムの開発　　　　　　　　　　　　　　　
  斎藤勇樹,金子順一,阿部壮志,堀尾健一郎
  Aug. 2019, [Domestic conference]
• 指向性エネルギー堆積型AMと切削による複合加工のための工程設計法の開発　　　　　　　　　　　　　　　
  片岡倫明,阿部壮志,金子順一,堀尾健一郎
  Aug. 2019, [Domestic conference]
• ワイヤ＋アーク放電によるAMを用いた中実形状造形のための積層条件決定支援ソフトウェア　　　　　　　　　　　　　　　
  井口玲良,阿部壮志,金子順一,堀尾健一郎
  Aug. 2019, [Domestic conference]
• 積層条件がアルミニウム造形物欠陥に与える影響　　　　　　　　　　　　　　　
  永松秀朗,笹原弘之,阿部壮志
  Aug. 2019, [Domestic conference]
• FDM3Dプリント部品の表面処理のためのブラスト研磨条件の検討　　　　　　　　　　　　　　　
  Santos Gustavo,金子順一,阿部壮志,堀尾健一郎
  Aug. 2019, [Domestic conference]
• 複合繊維材料（CFRP）を用いた積層造形品に対する積層及び切削条件の検討　　　　　　　　　　　　　　　
  神宮雄大,金子順一,阿部壮志,堀尾健一郎
  Aug. 2019, [Domestic conference]
• 積層造形後の除去プロセスを考慮したサポート形状の計画手法　　　　　　　　　　　　　　　
  小島雄太,神永昂周,金子順一,阿部壮志,堀尾健一郎
  Aug. 2019, [Domestic conference]
• 複雑形状金型の走査線工具経路生成における座標点数削減アルゴリズムの開発　　　　　　　　　　　　　　　
  斎藤勇樹,金子順一,阿部壮志
  Jun. 2019, [Domestic conference]
• 加工領域を対象とした加工可能姿勢範囲の高速な導出による工具経路計画法の開発　　　　　　　　　　　　　　　
  秋山瑞樹,金子順一,阿部壮志,掘尾健一郎
  2019, [Domestic conference]
  2019 - 2019, Japanese
  

  多軸制御加工のCL計画では、工具経路を導出して切削点毎の姿勢を決定する。しかし加工面のフィード・ピック方向における工具姿勢の連続性を確保するには、工具姿勢を制約して計画することが望ましい。そこでUVパラメータで定義された加工面に対し、コンフィギュレーション空間での加工可能姿勢を導出し、経路を決定する新しい計画法を提案する。本報告では、加工可能姿勢範囲に対する加工面の色情報による可視化手法を述べる．

• Accurate and fast tool path generation method for large-scale discrete shape data　　　　　　　　　　　　　　　
  Kaneko Junichi; Kitahara Hiromu; Abe Takeshi; Horio Kenichiro
  Proceedings of JSPE Semestrial Meeting, 2019, The Japan Society for Precision Engineering, [Domestic conference]
  2019 - 2019, Japanese
  

  Sculptured surface on large-scale dies with complex curved surface such as automobile body parts is usually fabricated by ball-end-mill using 3-axis NC milling machines. Normally, toolpath for machining products is generated by geometric calculation between product model and tool. However, if the product has a large and complex surface, number of polyhedrons approximating the product increases, so a calculation time becomes enormous. In past research, methods of geometric calculation using offset surface generation and the parallel processing function of GPU were proposed to solve this problem. However, these methods didn't consider error due to the approximation process and increase in memory usage. To reduce this geometric error and memory usage, we propose a new method for accurate offset surface generation. In this method, the offset surface is generated by vertices of the polyhedron constituting the product and the tool radius. This approach enables accurately calculating a height of the offset surface of the area approximated by the fine polygon shape while suppressing an increase in memory usage.

• Development of a method for estimating the amount of displacement of a low-rigidity cutting object by machine learning:(Data set by image of processing conditions and displacement）　　　　　　　　　　　　　　　
  SUGITA Shumpei; KANEKO Junichi; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, 2019, The Japan Society of Mechanical Engineers
  2019 - 2019, Japanese
  When estimating the effect of elastic deformation of a workpiece generated during machining on machining errors in machining of low rigidity objects, it is necessary to continuously carry out finite element analysis in the shape in the middle of machining and increase in calculation time becomes a problem. Then, in this study, was attempted to drastically reduce processing time by forming a data set obtained by making processing conditions and displacement distribution information after processing to two-dimensional image information, to develop a method guessing displacement distribution by machine learning. In this paper, we explain the results obtained for the shape of the blade.
• Development suppress method of processing speed reduction by correction of turning axis command value in 5-axis control machining　　　　　　　　　　　　　　　
  NAKAMURA Takayuki; ICHIKAWA Kohei; HASEGAWA Masanobu; KANEKO Jun'ichi; ABE Takeyuki; HORIO Kenichi
  The Proceedings of The Manufacturing & Machine Tool Conference, 2019, The Japan Society of Mechanical Engineers, [Domestic conference]
  2019 - 2019, Japanese
  In recent cutting processes, 5-axis controlled machine tool has become essential as the shape of the work becomes complicated, and high efficiency by short-time machining under high feed conditions is required. However, in a machining plan based on a CAM system aiming to avoid interference, there is a problem that the actual feed speed does not reach the command value and the machining time becomes longer than expected. In this report, in machines with a trunnion stage type configuration, attention is paid to the jerk value of the turning axis, and propose the tool posture planning that restrain machining speed decrease by correction command value of turning axis.
• Development of high precision grinding technology for irregularly shaped cutting edge of punch　　　　　　　　　　　　　　　
  SHIGEMURA Keitaro; YAMADA Hiroaki; KANEKO Jun'ichi; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, 2019, The Japan Society of Mechanical Engineers, [Domestic conference]
  2019 - 2019, Japanese
  In this research, I will present a high precision grinding technique of cutting edge of punch. This method performs finish grinding process planning method by simultaneous three-axis control of a conical grindstones on a machining center. Cutting edges of punch are tools used to cut out thin-walled shapes, it is necessary to limit the thickness of the tip of the cutting edge to 10 [µm] or less and to suppress a surface roughness of cutting edge, because the thickness and the surface roughness affect the generation of chips and cutting quality at the time of material cutting. I try to apply to an irregularly shaped cutting edge of punch processing condition of a straight blade that the surface roughness of the edge is suppressed by carrying out truing and the surface roughness can be further suppressed by grinding by a path tilted along the edge. As a result, it became possible to generate cutting edges of punch with complicated shapes by processing condition and tool path.
• Material mixing ratio in MIM-based FDM using agar binder　　　　　　　　　　　　　　　
  ABE Takeyuki; SAKURAI Ayano; KANEKO Jun'ichi; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, 2019, The Japan Society of Mechanical Engineers
  2019 - 2019, Japanese
  In FDM technology, which is performed by extruding a material from a heated nozzle using an MIM material, generally uses a resin material as a binder. This process requires degreasing and sintering steps to remove a binder after molding. The degreasing process is carried out in a dedicated apparatus using an organic solvent. In this study, using agar as a binder, it was possible to carry out degreasing and sintering processes continuously in the same furnace. In this report, the effect of material mixing ratio of metal powder, agar, and water on the density and hardness of shapes was clarified.
• New Calculation Method of Cutter Locations on Accurate Offset Surface based on Parallel Processing with GPU　　　　　　　　　　　　　　　
  Hiromu Kitahara, Jun'ichi Kaneko, Masahiro Ajisaka, Takeyuki Abe, Kenichiro Horio
  Nov. 2018, [International conference]
• Fast Tool Path Generation Algorithm for Giga polygonal shape　　　　　　　　　　　　　　　
  Hiromu KITAHARA, Yuki SAITO, Naoto YAMAUCHI and Jun’ichi KANEKO
  Nov. 2018, [International conference]
• FEED-RATE PREDICTION MODEL IN HIGH SPEED MACHINING FOR CUTTING FORCE ESTIMATION　　　　　　　　　　　　　　　
  Ryo Satoh, Jun'Ichi Kaneko, Takeyuki Abe, Kenichiro Horio
  Jun. 2018, [International conference]
• SURFACE TREATMENT AND TENSILE STRENGTH ANALYSIS OF FUSED FILAMENT FABRICATION ADDITIVE MANUFACTURED PRODUCTS TREATED WITH THE ABRASIVE BLASTING TECHNIQUE　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira Dos Santos, Jun'Ichi Kaneko, Takeyuki Abe, Kenichiro Horio
  Jun. 2018, [International conference]
• Fabrication of Lattice Structures by Wire and Arc-based Additive Manufacturing　　　　　　　　　　　　　　　
  Takeyuki Abe, Hiroyuki Sasahara
  Proceedings of the 18th euspen International Conference & Exhibition, Jun. 2018, [International conference]
• Development of the shell structure building simulator with two-dimensional bead model　　　　　　　　　　　　　　　
  Takeyuki Abe, Hiroyuki Sasahara
  Proceedings of The 9th International Conference on Leading Edge Manufacturing in 21st Century, Jan. 2018, [International conference]
• Deposited metal shape control using temperature simulation for wire and arc-based additive manufacturing　　　　　　　　　　　　　　　
  Abe Takeyuki; Kaneko Junichi; Horio Kenichiro; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, 2018, The Japan Society for Precision Engineering, [Domestic conference]
  2018 - 2018, Japanese
  

  本研究ではワイヤ＋アーク放電によるアディティブ・マニュファクチャリングにおいて，造形物の形状精度向上のための最適な積層条件の導出方法の確立を目的とする．本プロセスの造形物温度および表面形状を模擬したシミュレーションにより溶着金属形状を推定し，これをもとに各予熱温度における最適な積層条件を導出した．造形物温度分布の推定結果に基づいて最適な積層条件を決定することで，溶着金属形状精度の向上を可能にした．

• プラントへの機器搬入時支援システムの開発　　　　　　　　　　　　　　　
  中村隆之 金子順一 阿部壮志 堀尾健一郎
  2018年度精密工学会秋季大会学術講演会講演論文集, 2018, [Domestic conference]
  2018 - 2018, Japanese
  

  工場などの大規模施設に大型機器を搬入する際、搬入経路および機器の姿勢を検討し、搬入の可否の検証を事前に行う必要がある。しかし、建築用CAD等を用いる従来手法では、この検討と結果の確認に多くの労力を要するため省力化が求められている。そのため本報告では施設内部の計測点群データをもとに姿勢計画を短時間で行い、AR（拡張現実）表示によって計画結果の可否を確認する支援システムの開発について述べる。

• 異形状工具に対応した走査線工具経路の高速生成アルゴリズムの開発　　　　　　　　　　　　　　　
  山岸直人 北原広 金子順一 鯵坂昌広 阿部壮志 堀尾健一郎
  2018年度精密工学会秋季大会学術講演会講演論文集, 2018, [Domestic conference]
  2018 - 2018, Japanese
  

  自動車用大型プレス金型の製作においては、高効率な切削工具の利用による加工時間の短縮が課題とされている。これに対して、近年、ブルノーズエンドミルやバレルエンドミルといった非球面状の切れ刃を持つ異形状工具の利用が注目されている。本報告では、これらの異形状工具を用いた大規模金型の仕上げ加工を対象として、走査線経路の座標導出を高速に実施する新しい並列演算手法について述べる。

• 加工対象物の切削抵抗による変形を考慮した工具姿勢計画法の開発　　　　　　　　　　　　　　　
  大熊優輝 金子順一 堀尾健一郎 阿部壮志
  2018年度精密工学会秋季大会学術講演会講演論文集, 2018, [Domestic conference]
  2018 - 2018, Japanese
  

  ジェットエンジンのブレードに代表される薄肉形状部品の仕上げには切削加工が多用されており、切削に伴う切削抵抗による弾性変形が加工精度にもたらす影響の低減が課題となっている。そこで、本研究では、同時５軸制御加工において、ボールエンドミルによる工具姿勢の変化によって生じる切削抵抗の変化に注目し、ブレードの変形を最小化する工具姿勢を計算シミュレーションによって計画するシステムの開発を行った。

• 多方向光学計測を統合した工具形状推定手法の開発　　　　　　　　　　　　　　　
  金子真由美 神永昂周 金子順一 片野清彦 阿部壮志 堀尾健一郎
  2018年度精密工学会秋季大会学術講演会講演論文集, 2018, [Domestic conference]
  2018 - 2018, Japanese
  

  近年NC切削加工においては，機械衝突の事前のコンピュータシミュレーションによる回避が広く行われている．しかし，工作機械主軸に装着された工具形状がシミュレーションのデータと実際の工具とで一致しない人為的ミスの発生が問題となっている．そこで本研究では，工作機械主軸に装着された工具をカメラで撮影し，複数画像から工具形状を推定することで，シミュレーションでの推定形状との差異を高速に比較する手法を開発した．

• Making Research Paper:(About the Use of the JSME Specification Template File)　　　　　　　　　　　　　　　
  KITAHARA Hiromu; KANEKO Jun'ichi; AJISAKA Masahiro; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of Mechanical Engineering Congress, Japan, 2018, The Japan Society of Mechanical Engineers, [Domestic conference]
  2018 - 2018, Japanese
  

  Sculptured surface on large-scale dies with complex curved surface such as automobile body parts is usually fabricated by ball-end-mill using 3-axis NC milling machines. Normally, toolpath for machining products is generated by geometric calculation between product model and tool. However, if the product has a large and complex surface, number of polyhedrons approximating the product increases, so a calculation time becomes enormous. In past research, methods of geometric calculation using offset surface generation and the parallel processing function of GPU were proposed to solve this problem. However, these methods didn't consider error due to the approximation process and increase in memory usage. To reduce this geometric error and memory usage, we propose a new method for accurate offset surface generation. In this method, the offset surface is generated by vertices of the polyhedron constituting the product and the tool radius. This approach enables accurately calculating a height of the offset surface of the area approximated by the fine polygon shape while suppressing an increase in memory usage.

• Tool Posture Planning Method Considering with Change of Workpiece Shape with CNC Machining Process　　　　　　　　　　　　　　　
  KANEKO Jun'ichi; Watanabe Kento; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of Mechanical Engineering Congress, Japan, 2018, The Japan Society of Mechanical Engineers, [Domestic conference]
  2018 - 2018, Japanese
  

  This study proposed new automatic planning method for tool posture in multi axis controlled machining process to avoid collisions between the cutting tool and workpiece shape with unremoved volume in rough machining process. The proposed method sequentially judges the likelihood of collision between holder and shank parts of the cutting tool and the workpiece surface, which is changed by machining process. Then, continuous change of tool postures without collision is automatically determined. In the proposed method, an efficient algorithm for settings of tool posture candidates is proposed. By applying the proposed algorithm, it is possible to prevent rapid changes in tool posture at each cutter location, while reducing computation time for geometric calculation. In this paper we conduct experimental estimation about tool path of scanning path. In the planned results, the proposed method can generate continuous change of tool posture within several dozen milliseconds in each cutter location.

• Development of complex shape rough machining system by multi-axis control WEDM　　　　　　　　　　　　　　　
  TAKAHATA Masahiro; KANEKO Jun'ichi; IRIGUCHI Kenji; ABE Takeyuki; HORIO Kenichiro
  The Proceedings of The Manufacturing & Machine Tool Conference, 2018, The Japan Society of Mechanical Engineers, [Domestic conference]
  2018 - 2018, Japanese
  In recent years, new usage of Wire Electric Discharge Machining(WEDM) is expected for rough machining of difficult-to-cut materials such as aircraft parts. Therefore, we are developing new WEDM based on multi-axis control process. So, a new machine tool for multi-axis controlled WEDM process has been developed. The machine tool has 2-axis tilt and rotary tables and it can change the wire posture against workpiece surface. However, it is difficult to plan the path and the posture of wire avoiding the interference with the workpiece while continuously changing the posture. Thus, we propose a new planning method. This method is realized while solving the difficult problem.
• ワイヤ＋アーク放電によるアディティブ・マニュファクチャリングを用いた異種金属積層 ―フィラーワイヤを用いた造形による溶着金属成分制御方法の開発―　　　　　　　　　　　　　　　
  阿部壮志
  2017年度精密工学会秋季大会学術講演会講演論文集, Sep. 2017, [Domestic conference]
• Dissimilar metal deposition using wire and arc-based additive manufacturing:Control of chemical component in deposited metal with filler wire　　　　　　　　　　　　　　　
  Abe Takeyuki; Mori Daiki; Sonoya Keiji; Nakamura Masanobu; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, 2017, The Japan Society for Precision Engineering
  2017 - 2017, Japanese
  本研究ではワイヤ＋アーク放電によるアディティブ・マニュファクチャリングによる異種金属積層造形物において，異種金属界面に生じる残留応力や熱応力低減を目的として，界面に溶着金属成分を制御した中間層を形成した．これにより界面周辺の溶着金属成分の急激な変化を抑制した．溶着金属成分を制御するために，MIG/MAG溶接トーチから供給されるワイヤとは異なる材料をフィラーワイヤとして側方から溶融池に挿入する造形法を検証した．
• GS0401 Development of bonding method of the aluminum alloy in atmosphere with a high frequency induction heating and an ultrasonic vibration　　　　　　　　　　　　　　　
  GOTO Shuko; ANAYAMA Tenchi; OSADA Tomoji; SONOYA Keiji; ABE Takeyuki; NAKAMURA Masanobu
  The Proceedings of Conference of Kanto Branch, 2016, The Japan Society of Mechanical Engineers
  2016 - 2016, Japanese
  The purpose of this research is to develop the technology for aluminum alloy is weld in short time and a little change shape in atmosphere. It was welded using high frequency induction heating and ultrasonic vibration for it. As a result, when applying the ultrasonic vibration to the bonding portion, the tensile strength increases with junction temperature. When applying the ultrasonic vibration to the bonding portion, it increases in the tensile strength more than the case when isn't applied to the ultrasonic vibration. This is ultrasonic vibration destroys oxide layer of aluminum alloy, and to make a joint surface generate more material flow.
• Evaluation of weld structure on the tensile strength of resistant spot welding of mild steel to aluminum alloy　　　　　　　　　　　　　　　
  Abe Takeyuki; Mochizuki Shun; Sonoya Keiji; Nakamura Masanobu; Higuti Daisuke
  Preprints of the National Meeting of JWS, 2016, JAPAN WELDING SOCIETY
  2016 - 2016, Japanese
  現在，自動車の主要な接合プロセスであるスポット溶接法に注目し，軟鋼とアルミニウム合金のスポット溶接における溶接部の強度低下の原因を調べるため，スポット溶接条件が強度に及ぼす影響について評価した．その結果，スポット溶接条件の変化によって継手強度が変化した．SEM像などの観察結果より，IMCなど，複数の組織変化が見られた．
• ワイヤ＋アーク放電によるアディティブ・マニュファクチャリングのための造形形状シミュレータの開発:ビード形状の2次元モデルによるシェル形状造形物の推定　　　　　　　　　　　　　　　
  阿部 壮志; 笹原 弘之
  2016
  2016 - 2016, Japanese
  本研究ではワイヤ＋アーク放電によるアディティブ・マニュファクチャリングの造形精度の向上のために，積層パスだけでなく，目標形状に対して適切な積層条件を出力可能なCAMの開発を目的とする．本報告では2次元ビード形状モデルを提案し，シェル構造物の造形形状を予測するシミュレータの開発および形状予測精度の検証を行った．
• The Effects of Ultrasonic Vibration and Temperature on In-Atmosphere Solid State Bonding of A1070.　　　　　　　　　　　　　　　
  OSADA Tomoji; GOTO Shuko; SONOYA keiji; ABE Takeyuki; NAKAMURA Masanobu
  Preprints of the National Meeting of JWS, 2016, JAPAN WELDING SOCIETY
  2016 - 2016, Japanese
  強靭な酸化皮膜をもつアルミニウムは難接合材である．近年，新たな接合方法も試みられているが，コストや環境の制約がある．そこで超音波振動および高周波誘導加熱を用いて大気中でアルミニウムを短時間に接合する方法を考案した．その接合法における超音波振動及び接合温度の影響を検討した．
• Evaluation of strength of the solid state bonding in the atmosphere of A1070 with ultrasonic vibration　　　　　　　　　　　　　　　
  GOTO Shuko; ODAGIRI Saki; OSADA Tomoji; SONOYA Keiji; ABE Takeyuki; NAKAMURA Masanobu
  The Proceedings of Yamanashi District Conference, 2016, The Japan Society of Mechanical Engineers
  2016 - 2016, Japanese
• Evaluation of Thermal Properties of Thermal Sprayed Coating for Piston Head　　　　　　　　　　　　　　　
  SEKINE Masashi; SONOYA Keiji; NAKAMURA Masanobu; ABE Takeyuki
  The Proceedings of Yamanashi District Conference, 2016, The Japan Society of Mechanical Engineers
  2016 - 2016, Japanese
• The effects of spot welding conditions on strength of dissimilar joints in mild steel and aluminum alloy　　　　　　　　　　　　　　　
  QISTINA ZARIEF; ABE Takeyuki; SONOYA Keiji; NAKAMURA Masanobu; HIGUCHI Daisuke
  The Proceedings of Yamanashi District Conference, 2016, The Japan Society of Mechanical Engineers
  2016 - 2016, Japanese
• 203 Assessment of resistant spot welding of mild steel to aluminum alloy　　　　　　　　　　　　　　　
  MOTIZUKI Shun; ABE Takeyuki; SONOYA Keiji; NAKAMURA Masanobu; HIGUTI Daisuke
  The Proceedings of Yamanashi District Conference, 2015, The Japan Society of Mechanical Engineers
  2015 - 2015, Japanese
• 202 Development of Friction Material Formation method by Thermal Spraying　　　　　　　　　　　　　　　
  SAKAMOTO Takuya; ABE Takeyuki; SONOYA Keiji; NAKAMURA Masanobu
  The Proceedings of Yamanashi District Conference, 2015, The Japan Society of Mechanical Engineers
  2015 - 2015, Japanese
• 201 Characterization of Thermal Sprayed Coatings for the Piston　　　　　　　　　　　　　　　
  KOTANI Akira; SEKINE Masashi; SONOYA Keiji; NAKAMURA Masanobu; ABE Takeyuki
  The Proceedings of Yamanashi District Conference, 2015, The Japan Society of Mechanical Engineers
  2015 - 2015, Japanese
• 160 Development of the aluminum alloy solid state bonding method in atmosphere with a high frequency induction heating and an ultrasonic vibration　　　　　　　　　　　　　　　
  ANAYAMA Tenchi; GOTO Shuko; ABE Takeyuki; NAKAMURA Masanobu; SONOYA Keiji; OSADA Tomoji
  The Proceedings of Yamanashi District Conference, 2015, The Japan Society of Mechanical Engineers
  2015 - 2015, Japanese
• 溶融金属積層により造形したマグネシウム合金の引張特性調査　　　　　　　　　　　　　　　
  高木 悠貴; 阿部 壮志; 三宮 大喜; 西山 新一郎; 大田 秀一郎; 中村 国光; 笹原 弘之
  2015
  2015 - 2015, Japanese
  本研究では，アーク溶接技術を用いて3次元造形を行う溶融金属積層法により，従来のアデティブ・マニュファクチャリング技術では実現されていない，マグネシウム合金を用いた積層造形を可能とし，造形物の引張強度，0.2%耐力，伸びを調査した．その結果，引張強度は同等なバルク材と比べ同等な強度を有することが明らかになった．一方，0.2%耐力は同等なバルク材に比べ低い値となり，伸びは高い値であることが明らかになった．
• Development of the direct metal lamination system by using arc discharge:Bond strength of laminated object made of Ni based alloy and stainless steel　　　　　　　　　　　　　　　
  Abe Takeyuki; Sasahara Hiroyuki; Sonoya Keiji
  Preprints of the National Meeting of JWS, 2015, JAPAN WELDING SOCIETY
  2015 - 2015, Japanese
  本研究ではMIG・MAG溶接技術で用いられるアーク放電により金属を溶融する技術に着目し，溶融させた金属を滴下，凝固させ三次元積層を行う溶融金属積層法を発展させている．本手法を用いて，複数種類の金属材料を積層する造形装置および造形手法を開発し，その造形物の接合強度を調査した．
• C43 Development of the direct metal lamination system by using arc discharge : Fabrication with dissimilar metal　　　　　　　　　　　　　　　
  ABE Takeyuki; SASAHARA Hiroyuki
  The Proceedings of The Manufacturing & Machine Tool Conference, 2014, The Japan Society of Mechanical Engineers
  2014 - 2014, Japanese
  The direct metal lamination is one of the additive manufacturing processes using the arc welding technology; where the molten metal made by the arc discharge is accumulated successively in this process. In this study, two kinds of dissimilar metal fabrication were conducted. One combination is an aluminum alloy and a titanium alloy. Another is a stainless steel and a Ni based alloy. The boundaries of dissimilar metal structures were investigated. As a result, the potential of the fabrication with more than one kind of metallic material by direct metal lamination is shown.
• アーク放電を用いた溶融金属積層のためのCAMシステム開発:積層高さ制御によるオーバーハング形状造形　　　　　　　　　　　　　　　
  阿部 壮志; 笹原 弘之
  2013
  2013 - 2013, Japanese
  本研究では溶接技術で用いられるアーク放電により金属を溶融する技術に着目し，溶融させた金属を滴下，凝固させ三次元積層を行う溶融金属積層法を発展させている．本手法ではオーバーハング形状を迅速に造形可能であるが，傾斜角度によって積層高さが異なるため，造形精度が低下し，複雑なオーバーハング形状の造形が困難である．そこで，積層高さ誤差をトーチ送り速度制御により補正することで複雑形状の造形を可能にした．
• Development of the Fabrication Method for Solid Structure on Direct Metal Lamination Using Arc Discharge　　　　　　　　　　　　　　　
  Abe Takeyuki; Yoshimaru Reo; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, 2012, The Japan Society for Precision Engineering
  2012 - 2012, Japanese
  本研究では溶接技術で用いられるアーク放電により金属を溶融する技術に着目し，溶融させた金属を滴下，凝固させ三次元積層を行う溶融金属積層法を発展させている．本手法を用いてソリッド構造を造形する際の積層条件と引張強度の関係を調査した．その結果，積層方向は強度にほとんど影響を与えず，低入熱条件ほど強度が高いことを明らかにした．本試験結果から適切な積層条件を用いてソリッド構造を造形するCAMを開発した．
• Study on Residual Stress and deformation of Shell Structure Fabricated by Direct Metal Lamination Using Arc Discharge　　　　　　　　　　　　　　　
  Abe Takeyuki; Sasahara Hiroyuki
  Proceedings of JSPE Semestrial Meeting, 2011, The Japan Society for Precision Engineering
  2011 - 2011
  In this research, an arc welding technology has been applied to melt the metal, and the fabrication system for three dimensional metallic parts, direct metal lamination using arc discharge, has been developed. In this paper, the relationship between residual stress in the shell structure and temperature distribution in the shell structure after lamination is investigated. As a result, it is clarified that residual stress is small under the condition that temperature in the shell structure is high. In addition, temperature distribution can be controlled by heat input conditions and cooling method. The residual stress distribution is formed by non-uniform compressive plastic strain distribution. The plastic deformation is caused by temperature distribution.
• Elastic deformation of aluminum bronze / duplex stainless composite structures by wire arc additive manufacturing　　　　　　　　　　　　　　　
  Kanta SAITO Takeyuki Abe Jun’ichi Kaneko
  [International conference]
• Investigation of the relationship between electric power and deposited metal width in wire additive manufacturing using Joule heating　　　　　　　　　　　　　　　
  Naoki Koyama Takeyuki Abe Jun’ichi Kaneko
  [International conference]
• Process planning for hybrid manufacturing based on base metal dimension and material consumption　　　　　　　　　　　　　　　
  Takeyuki Abe Tomoaki Kataoka Jun’ichi Kaneko
  [International conference]
• Study on the influence of the dendritic microstructure on the turning of WAAM Inconel 718　　　　　　　　　　　　　　　
  Jun’ichi KANEKO Takumi Osato Takeyuki Abe
  [International conference]
• Optimization method of NC command for feature line shape considering acceleration/deceleration characteristic of CNC machine tool　　　　　　　　　　　　　　　
  Toshihiro KURODA Jun’ichi Kaneko Takeyuki Abe
  [International conference]
• Study on the influence of the dendritic microstructure on the turning of WAAM Inconel 718　　　　　　　　　　　　　　　
  Gustavo Quadra Vieira dos Santos Youhei Kujirai Jun’ichi Kaneko Takeyuki Abe
  [International conference]
• ワイヤ＋アーク放電によるアディティブマニュファクチャリングにおけるシールドガスが造形物形状に与える影響の調査　　　　　　　　　　　　　　　
  中本 匠 阿部壮志 金子順一
  [Domestic conference]
• ウィービングを用いたWAAMによるAl合金上への純Ti層の形成　　　　　　　　　　　　　　　
  中島健太郎 永松秀朗 笹原弘之 阿部壮志
  [Domestic conference]

• ワイヤ＋アーク放電方式によるマルチマテリアル付加加工における機能創成　　　　　　　　　　　　　　　
  01 Apr. 2023 - 31 Mar. 2026
  Grant amount(Total)：18980000, Direct funding：14600000, Indirect funding：4380000
  Grant number：23H01315
• 固相接合メカニズムを応用した金属積層技術の開発　　　　　　　　　　　　　　　
  01 Apr. 2021 - 31 Mar. 2024
  Grant amount(Total)：4160000, Direct funding：3200000, Indirect funding：960000
  Grant number：21K03802
• Function creation in additive manufacturing using Mg alloys and dissimilar metals with wire arc discharge　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2019 - 31 Mar. 2022
  Sasahara Hiroyuki, Tokyo University of Agriculture and Technology
  Grant amount(Total)：17550000, Direct funding：13500000, Indirect funding：4050000
  In additive manufacturing utilizing wire material and arc discharge, a magnesium alloy, which is a lightweight and high specific-strength metal, can be applied for fabrication with high precision by active cooling with solid block contact to the supplied molten metal. Furthermore, on the surface layer, the possibility of deposition of dissimilar metals such as Ti alloy and Al alloy, which have superior heat resistance, corrosion resistance and wear resistance compared to Mg alloy, was investigated. The metallographic state and bond strength at the interface were also clarified. Although the metallurgical bonding strength of these combinations is low due to the formation of intermetallic compounds at the interfaces between dissimilar metals, the additive process itself is feasible.
  Grant number：19H02038
• Wire and arc additive manufacturing with finishing process　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Early-Career Scientists, 01 Apr. 2019 - 31 Mar. 2021
  Takeyuki Abe, Saitama University
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  We proposed a new processing method that simultaneously performs metal additive manufacturing, which melts and deposits wire materials by arc discharge, and finishing processing using a rotary tool. The proposed method improves the shape accuracy of the accumulates, and at the same time suppresses the anisotropy of the microstructure of the accumulates by the stirring action and plastic strain given by the rotary tool. The microstructure of the accumulates after finishing with a cutting tool and FSB tool was evaluated, and the feasibility of the proposed method were shown. It was also clarified that the relationship between the solidification state of the accumulates and the anisotropy.
  Grant number：19K14858
• State Analysis of Manual Pouring and Development of Control System Replicating Skilled Pouring-Work　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), 01 Apr. 2018 - 31 Mar. 2021
  NODA Yoshiyuki, University of Yamanashi
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  A quality of casting product is influenced by the pouring process in the casting industry. Therefore, it is required to develop the automatic pouring machine replicating the skilled pouring work. In this study, we developed the assessment system of pouring skill and the pouring control system which replicates the pouring flow rate obtained from the assessment system as the teaching data. As the results in this study, the manual pouring works were scored by the developed assessment system. And, we realized the pouring control system which refers the pouring flow rate obtained from the assessment system.
  Grant number：18K04016
• 溶融金属積層と切削加工の複合加工を可能にするCAMおよび工程設計システムの開発　　　　　　　　　　　　　　　
  01 Apr. 2016 - 31 Mar. 2019
  阿部壮志
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  Grant number：16K1799
• Development of the CAM and CAPP system for additive manufacturing process and machining　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B), Grant-in-Aid for Young Scientists (B), 01 Apr. 2016 - 31 Mar. 2019
  ABE Takeyuki; SASAHARA Hiroyuki
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  In this study, CAM and CAPP system for hybrid process, which includes additive manufacturing and finishing by machining, were developed. Optimal torch moving path and process conditions to build target shape with high accuracy were revealed. The software that supports the determination of the material geometry, the removal area by machining and the additional area by additive manufacturing from the viewpoint of material consumption and processing time, was developed.
  Grant number：16K17995
• 高精度複雑形状の自動造形を可能とする新加工技術『溶融金属積層法』の開発　　　　　　　　　　　　　　　
  01 Apr. 2013 - 31 Mar. 2015
  Grant amount(Total)：2200000, Direct funding：2200000
  Grant number：13J07728

• 三次元造形物の造形方法，三次元造形装置用の設定データ作成装置および三次元造形装置用の設定データ作成プログラム　　　　　　　　　　　　　　　
  Patent right
  Patent/Registration no：特許第6754118号
• 三次元造形装置、三次元造形物の造形方法、および三次元製造装置の制御プログラム　　　　　　　　　　　　　　　
  笹原弘之,阿部壮志, Patent right
  Patent/Registration no：特許6265376