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Progress in Plasma Processing of Materials, 2003

ISBN:
978-1-56700-192-1 (Print)
978-1-56700-447-2 (Online)

COLD ELECTRODE EROSION MODEL FOR PULSED ARCS APPLIED TO THE ELECTRICAL DISCHARGE MACHINING PROCESS

L. I. Sharakhovsky
Instituto de Fisica "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp, 13083-970, Campinas, Sao Paulo, Brazil; The Luikov Heat & Mass Transfer Institute, P. Brovki street, 15, 220072, Minsk, Republic of Belarus

A. Marotta
Institute of Physics, University of Campinas, UNICAMP, SP, Brazil

A. M. Essiptchouk
Instituto de Fisica "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp, 13083-970, Campinas, Sao Paulo, Brazil; The Luikov Heat & Mass Transfer Institute, P. Brovki street, 15, 220072, Minsk, Republic of Belarus

Abstract

A simple erosion model for electrical discharge machining (EDM) is proposed and compared to other authors' cathode experimental data. From these comparisons, the effective arc spot current density and erosion enthalpy have been obtained. The good agreement between the experimental results and the theoretically calculated erosion curve validates the model.