研究者詳細 - 岡田　晃

論文 - 岡田　晃

分割表示 396 件中 361 - 380 件目／全件表示 >>

ホーニング用水溶性切削油を用いた電解加工による小径円筒内面仕上げ査読

宇野義幸,*岡田晃,中聡,山本庄一,坂根豊

電気加工学会誌 36 ( 81 ) 2002年

Surface Modification of EDMed Surface with Powder Mixed Fluid 査読

Yoshiyuki UNO, Akira OKADA, Serkan. CETIN

Proc.of the 2nd International Conference and Exhibition on Design and Production of Dies and Molds(CD-ROM) 2001年

A New Micro EDM Technique of Monocrystalline Silicon Using Fine Triangular Section Electrode 査読

Akira OKADA, Yoshiyuki UNO, Yasuhiro OKAMOTO, Hiroshi NAKASHIMA, Hidetou TANAKA, Saburo OKADA

Proc.of the13th International Symposium for ElectroMachining, pp.381-389. 381 - 389 2001年

Energy Distribution in Electrical Discharge Machining with Graphite Electrode 査読

Akira Okada*, Yoshiyuki Uno and Isao Okajima

Memoirs of the Faculty of Engineering, Okayama University 34 ( 1・219-26 ) 19 - 26 2000年

記述言語：英語出版者・発行元：Faculty of Engineering, Okayama University

In EDM, the machining characteristics greatly depend on the energy distribution. Therefore, it is very important to clarify the energy distribution for understanding various phenomena in EDM. In this paper, the energy distribution in EDM with graphite electrode is investigated by measuring the temperatures of electrode and workpiece. Experimental analysis shows that the material removal rate depends on energy density while the electrode wear greatly depends on the adhesion of heat resolved carbon from machining fluid, and the energies distributed into electrode and workpiece are almost constant regardless of pulse duration.

CiNii Article

CiNii Books

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Wire EDM Slicing of Monocrystalline Silicon Ingot 査読

Yoshiyuki Uno, Akira Okada*, Yasuhiro Okamoto and Tameyoshi Hirano

Proc. of the 15th American Society for Precision Engineering Annual Meeting 172 - 175 2000年

High Performance Slicing Method of Monocrystalline Silicon Ingot by Wire EDM(共著) 査読

Initiatines of Precision Engineering at the Beginning of a Millennium 219 - 223 2000年

Formation of hard layer by EDM with carbon powder mixed fluid using titanium electrode 査読

A Okada, Y Uno, K Hirao, T Takagi

PROGRESS OF MACHINING TECHNOLOGY 464 - 469 2000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：AVIATION INDUSTRY PRESS

A new method for forming hard layer containing titanium carbide by EDM with carbon powder mixed fluid using titanium electrode is proposed, and the effects of machining conditions on characteristics of the layer are experimentally investigated. Furthermore, the wear resistance of EDMed surface was evaluated. Experimental analysis made it clear that a thick and smooth TiC layer could be formed on the machined surface by this method. It was also pointed out that the hardness of modified surface became higher with an increase of discharge duration and/or carbon powder concentration in the kerosene type machining fluid, and that the wear resistance of the modified layer was much higher than that of base material.

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単結晶シリコンインゴットの放電スライシング法(共著) 査読

岡田晃, 宇野義幸, 岡本康寛, 伊藤久, 平野爲義

電気加工学会誌 34 ( 75 ) 14 - 21 2000年

High Efficiency Fine Boring of Monocrystalline Silicon Ingot by Electrical Discharge Machining 査読

Yoshiyuki Uno, Akira Okada*, Yasuhiro Okamoto, Kazuo Yamazaki, Subhash H. Risbud and Yoshiaki Yamada

Precision Engineering(Journal of the American Society for Precision Engineering) 23 ( 2 ) 126 - 133 1999年4月

グラファイト電極を用いた高効率放電加工法に関する研究(共著) 査読

郭常寧,宇野義幸,岡田晃*,勝田智宣,橋川栄二,高木俊

電気加工学会誌 33 ( 72 ) 37 - 45 1999年

チタン電極を用いた炭素粉末混入放電加工による表面改質(共著) 査読

岡田晃, 宇野義幸, 平尾和久, 高木俊

電気加工学会誌 33 ( 73 ) 31 - 37 1999年

Internal Surface Finishing of Small Hole by Electrochemical Machining after Honing 査読

Akira Okada*, Yoshiyuki Uno, Satoshi Naka, Shoich Yamamoto and Akiyo Kinoshita

Proc. of the 3rd International Conference on Abrasive Technology 275 - 282 1999年

Surface Modification by EDM with Nickel Powder Mixed Fluid 査読

Yoshiyuki Uno, Akira Okada*, Yasuhiro Hayashi and Yoshiaki Tabuchi

International Journal of Electrical Machining ( 4 ) 47 - 52 1999年

三角形断面電極による微細複雑形状放電加工法(共著) 査読

岡田晃, 岡本康寛, 宇野義幸, 渡部晃次, 田中英登, 岡田三郎

精密工学会誌 65 ( 1 ) 155 - 159 1999年

EDM Characteristics of CVD-Carbon Electrode(共著) 査読

International Journal of Electrical Machining ( 3 ) 19 - 24 1998年

A new slicing method of monocrystalline silicon ingot by wire EDM 査読

A Okada, Y Uno, Y Okamoto

12TH INTERNATIONAL SYMPOSIUM FOR ELECTROMACHINING (ISEM) 1405 417 - 424 1998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：V D I-V D E - VERLAG GMBH

This paper deals with a new slicing method of monocrystalline silicon ingot by wire EDM. In manufacturing process of silicon wafer, ID blade and multi wire saw have conventionally been used for slicing of ingot. However, it is difficult to apply these methods for larger ingot such as 12(R) or 16 " expected to be used in the near future, since there are some problems in efficiency, accuracy, slurry treatment, contamination and so on. Therefore, a new slicing method is required as soon as possible. In this study, the possibility of slicing by WEDM was proposed and the machining properties as well as surface integrity were experimentally investigated. It was made clear that WEDM had the possibility as a new slicing method and that contamination due to adhesion and diffusion of wire electrode material to machined surface could be reduced by using the reversed polarity WEDM.

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A new micro EDM technique for fine complicated hole with triangular section electrode 査読

Y Uno, A Okada, Y Okamoto, K Watanabe, S Okada, Y Yamada

PROCEEDINGS OF THE THIRTEENTH ANNUAL MEETING OF THE AMERICAN SOCIETY FOR PRECISION ENGINEERING 65 ( 1 ) 239 - 242 1998年

Study on Electrical Discharge Machining Characteristics of Coated Electrodes(共著) 査読

Memoirs of the Faculty of Enggineering. , Okayama University 32 ( 1・2 ) 1 - 6 1998年

ニッケル粉未混入放電加工におけるアルミニウム青銅の表面特性(共著) 査読

宇野義幸, 岡田晃, 山田知彦, 林泰弘, 田渕義晨

電気加工学会誌 32 ( 70 ) 24 - 31 1998年

単結晶シリコンの放電加工に関する基礎的研究(共著) 査読

宇野義幸, 岡田晃, 中西洋人, 岡本康寛

精密工学会誌 63 ( 10 ) 1459 - 1463 1997年

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