研究者詳細 - 岡田　晃

論文 - 岡田　晃

分割表示 396 件中 241 - 260 件目／全件表示 >>

電子ビーム照射面に窒化処理を適用した金型綱の熱疲労特性について査読

萩原義人, 佐野正明, 岡田晃

電気加工学会誌 47 ( 115 ) 88 - 96 2013年

プラズマ窒化処理がステンレス刃物の切断性能に及ぼす影響査読

玉置司, 岡田晃, 植村賢介, 宇野義幸

精密工学会誌 79 ( 10 ) 950 - 955 2013年

Micro-welding of Aluminium Alloy by Superposition of Pulsed Nd:YAG Laser and Continuous Diode Laser 査読

Yasuhiro Okamoto, Shin-ichi Nakashiba, Tomokazu Sakagawa, Akira Okada

The Paton Welding Journal 11 ( 11 ) 105 - 111 2013年

Fundamental study on sputter deposition of ceramic film by large-area electron beam irradiation 査読

S. Misumi, A. Okada, Y. Okamoto, M. Inoue

PROCEEDINGS OF THE SEVENTEENTH CIRP CONFERENCE ON ELECTRO PHYSICAL AND CHEMICAL MACHINING (ISEM) 6 486 - 491 2013年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：ELSEVIER SCIENCE BV

The sputter deposition of ceramic film on metal mold steel surface by large-area electron beam (EB) irradiation was discussed. The large-area EB has high energy density enough to generate plasma above the workpiece surface during the surface smoothing process, which causes the sputtering of target material set near the workpiece surface. The sputter deposition of target material with simultaneous surface melting and resolidification of workpiece surface by large-area EB would improve the adhesion between the deposited film and the workpiece. Short ceramic tube made of alumina or zirconia as a target was put on the substrate surface of steel, and large-area EB was irradiated to the surface. The workpiece surface component and structure after the irradiation were investigated using EDX and XRD analysis, in order to discuss the possibility of large-area EB irradiation as a new coating method. (C) 2013 The Authors. Published by Elsevier B.V.

DOI： 10.1016/j.procir.2013.03.053

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Numerical Study on Wire Deflection by Jet Flushing in Wire EDM 査読

Kazuki Kuriyama, Akira Okada, Yasuhiro Okamoto

Proceedings of 5th International Conference on Asian Society for Precision Engineering and Nanotechnology, 2013年

Fundamental Study on Micro-deburring by Large-area EB Irradiation 査読

Akira OKADA, Hajime YONEHARA, Yasuhiro OKAMOTO

Procedia CIRP 5 ( 5 ) 19 - 24 2013年

Fundamental Study on Multi-Wire EDM Slicing of SiC by Wire Electrode with Track-shaped Section 査読

Atsushi Kimura, Yasuhiro Okamoto, Akira Okada, Jun Ohya, Toshiyuki Yamauchi

Procedia CIRP 6 ( 6 ) 232 - 237 2013年

Study on Movement of Thin Tungsten Wire Electrode during Fine Wire EDM 査読

Naoki WATANABE, Akira OKADA, Yasuhiro OKAMOTO

Proceedings of the 7th International Conference on Leading Edge Manufacturing in 21st Century, pp.369-372 369 - 372 2013年

Precise Prediction of Shape Change at Convex Corner by Large-area EB Irradiation 査読

Koki KOYAMA, Akira OKADA, Yasuhiro OKAMOTO, Koji TABUCHI

Proceedings of the 7th International Conference on Leading Edge Manufacturing in 21st Century, pp.358-365 358 - 365 2013年

Fundamental Study on Micro-welding of Copper by Green Pulsed YAG Laser 査読

Sunao TAKAI, Shin-ichi NAKASHIBA, Yasuhiro OKAMOTO, Akira OKADA, Tomokazu SAKAGAWA

Proceedings of the 7th International Conference on Leading Edge Manufacturing in 21st Century, pp.35-38. 35 - 38 2013年

Fundamental Characteristics of Spatter in Micro-drilling of Metal Sheet by Pulsed Nd:YAG Laser 査読

Kento SHIRASAYA, Yasuhiro OKAMOTO, Akira OKADA

Proceedings of the 7th International Conference on Leading Edge Manufacturing in 21st Century, pp.43-46. 43 - 46 2013年

Investigation of Micro-drilling Characteristics for SiC by Harmonics of YAG Laser 査読

Shin URUSHIBATA, Yasuhiro OKAMOTO, Akira OKADA, Shin-ichi NAKASHIBA, Tomokazu SAKAGAWA

Proceedings of the 7th International Conference on Leading Edge Manufacturing in 21st Century, pp.39-42. 39 - 42 2013年

Study on Releasability of Molded Resin from EDM Finished Surface with Metal Powder Mixed Fluid 査読

Akira Okada, Ryoji Kitada, Shuhei Iwasaki, Yasuhiro Okamoto

Proceedings of 28th Annual Meeting of the American Society for Precision Engineering 2013年

Singulation of Semiconductor Package by Superposition of Pulsed Fiber Laser and Green YAG Laser 査読

Yasuhiro Okamoto, Kento Shirasaya, Ryoji Kitada, Akira Okada

Proceedings of 32nd International Congress on Applications of Lasers & Electro-Optics 2013 829 - 835 2013年

Influence of Weld Bead Geometry on Thermal Deformation in Laser Micro-welding 査読

Satoshi Matsuoka, Yasuhiro Okamoto, Akira Okada

Procedia CIRP 6 ( 6 ) 492 - 497 2013年

Investigation of Phenomenon in Removal Processing of TCO Film by ns Pulsed Fiber Laser 査読

Takehito Yokoyama, Yasuhiro Okamoto, Shin-ichi Nakashiba, Tomokazu Sakagawa, Akira Okada

Proceedings of 5th International Conference on Asian Society for Precision Engineering and Nanotechnology, 2013年

Novel Micro-welding of Silicon and Glass by Ultrashort Pulsed Laser 査読

Yasuhiro Okamoto, Isamu Miyamoto, Jorma Vihinen, Akira Okada

Proceedings of 8th International Conference on Processing and Manufacturing of Advanced Materials 2013年

Challenge to Development of Functional Multi-wire EDM Slicing Method 査読

Yasuhiro Okamoto, Atushi Kimura, Akira Okada, Jun Ohya and Toshiyuki Yamauchi

Key Engineering Materials 523-524 287 - 292 2012年11月

Study on Improvement in Surface Characteristics by Large-area EB Irraidation 査読

Akira Okada, Tomohiro Fujita, Kouki Kouyama and Yasuhiro Okamoto

Proceedings of the 15th International Machine Tool Engineers' Conference 66 - 67 2012年11月

Investigation on Micro-machining Characteristics and Phenomenon of Semiconductor Materials by Harmonics of Nd:YAG Laser 査読

Takayuki Hirano, Yasuhiro Okamoto, Akira Okada, Yoshiyuki Uno, Tomokazu Sakagawa and Shin-ichi Nakashiba

Key Engineering Materials 516 36 - 41 2012年6月

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