publication . Research . 1989

Fundamental Study on Electrical Discharge Machining

Uno, Yoshiyuki; Nakajima, Toshikatsu; Endo, Osamu;
Open Access English
  • Published: 29 Nov 1989 Journal: Memoirs of the Faculty of Engineering, Okayama University, volume 24, issue 1, pages 13-24 (issn: 0475-0071, Copyright policy)
  • Publisher: Faculty of Engineering, Okayama University
The generation mechanism of crater in electrical discharge machining is analyzed with a single pulse discharge device for alloy tool steel, black alumina ceramics, cermet and cemented carbide, investigating the gap voltage, the discharge current, the shape of crater, the wear of electrode and so on. The experimental analysis makes it clear that the shape of crater has a characteristic feature for the kind of workpiece. The shape of electrode, which changes with the wear by an electric spark, has a significant effect on the shape of crater. The diameter and the depth of crater have a close relation to the discharge energy for alloy tool steel, black alumina ceram...
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Research . 1989
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