Electrode Wear Process in Electrical Discharge Machinings
1995; Elsevier BV; Volume: 44; Issue: 1 Linguagem: Inglês
10.1016/s0007-8506(07)62298-7
ISSN1726-0604
AutoresNaotake MOHRI, Masayuki Suzuki, Masanori Furuya, Nagao SAITO, Akira Kobayashi,
Tópico(s)Engineering Technology and Methodologies
ResumoThis paper deals with a synthetic consideration of electrode wear phenomena in electrical discharge machining. Time dependance of an electrode shape was observed through on-the-machine measurement. While the electrode wears at the edge portion in the beginning of machining, it grows at the flat portion in the longitudinal direction. In the stationary state of machining, the wear rate of an electrode is affected by the materials of work piece. Taking account of the precipitation of turbostratic carbon on the electrode, the presence of catalyst in the work piece material is considered. The turbostratic carbon on the surface of electrode prevents the electrode from spark erosion in EDM.
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