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Shoichi KURODA
2002 Volume 36 Issue 83 Pages
2-8
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Productivity Improvement Using EDM and WEDM
AGIE CHARMILLES (Japan) Ltd., Hajime YASUTOMO
2002 Volume 36 Issue 83 Pages
9-12
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Improvement of Productivity by Integrated Tool
EROWA NIPPON Ltd., Shigetoshi Sakagawa
2002 Volume 36 Issue 83 Pages
13-15
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Rock Solid Reliability, Stability and Precision of Macro System
SYSTEM 3R JAPAN CO., LTD, Koichi SAITO
2002 Volume 36 Issue 83 Pages
16-19
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Challenge to Submicron
Sodick Co., Ltd., Hiroshi HANABUSA
2002 Volume 36 Issue 83 Pages
20-23
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Combination of Linear Motor and Static Air Pressure Bearing
Sodick Co., Ltd., Shinichi YOSHIDA
2002 Volume 36 Issue 83 Pages
24-27
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Hitachi Via Mechanics, Ltd., Satoshi Sugawara
2002 Volume 36 Issue 83 Pages
28-30
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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FANUC Ltd., Yuki KITA, Masao MURAI, Yoshinori MARINO
2002 Volume 36 Issue 83 Pages
31-34
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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The Furukawa Electric Co., LTD., Keisuke KITAZATO, Takashi MIYOSHI, Y ...
2002 Volume 36 Issue 83 Pages
35-38
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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MAKINO MILLING MACHINE CO., LTD, Kunio Fujita
2002 Volume 36 Issue 83 Pages
39-41
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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MAKINO MILLING MACHINE CO., LTD, Koji Yoshida
2002 Volume 36 Issue 83 Pages
42-45
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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MITSUBISHI ELECTRIC CORPORATION NAGOYA WORKS, Mitsuaki AKUNE, Tsuneo ...
2002 Volume 36 Issue 83 Pages
46-49
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Mitsubishi Electric Corp., Shuichiro ISHIHARA, Yutaka TERADA, Toshio ...
2002 Volume 36 Issue 83 Pages
50-53
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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Yoshinobu KOBAYASHI, Takeo TAMURA
2002 Volume 36 Issue 83 Pages
54-61
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
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Recently, many new machining technologies which utilize electrical discharge machining (EDM) have been developed. However, the mechanism of material removal in EDM has not yet been sufficiently explained. To clarify the mechanism of material removal, the transitions in the impulsive forces that act on the melted region should be experimentally examined. In this study, first, the transitions in the impulsive forces in an impulse discharge were measured. Second, how the impulsive forces affect the formation of a crater by impulse discharge was examined. The following results were obtained. (1) A typical waveform obtained from an impulse discharge in kerosene consists of primary, secondary, tertiary and quaternary waves, and the intervals between the peaks of waves gradually become smaller. (2) The peak value of the primary wave, ranging from 15 to 20N, depends on the peak current. The interval ranging from 200 to 350μs from the start of discharge to the peak of the secondary wave depends on the discharge energy. (3) Because the shape of the crater is strongly dependent on the polarities under the same working conditions in EDM, the effect of the impulsive force acting between the workpiece and the electrode on the formation of a crater by impulse discharge may be insignificant.
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Properties of colored surface
Hisashi MINAMI, Kiyonori MASUI, Hidekazu TSUKAHARA, Hideki HAGINO
2002 Volume 36 Issue 83 Pages
62-67
Published: November 29, 2002
Released on J-STAGE: March 12, 2010
JOURNAL
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In the previous paper, we proposed a new method of coloring titanium alloy by electrical discharge machining (EDM) in dielectric water. It was confirmed that coloring by EDM is caused by an interference phenomenon in the anodic oxide film generated on the EDMed surface. In order to apply this new coloring method to titanium products, it is necessary to evaluate the properties of the colored surface. In this study, the corrosion resistance, the weatherability and the wear resistance of the colored surface were discussed. As a result, it was confirmed that the surface colored due to the presence of an oxide layer has high corrosion resistance and excellent weatherability. Moreover, the wear resistance of the colored surface was improved as an additional effect of EDM.
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