Investigation of Surface Temperature in Electro-Discharge Machining

[+] Author and Article Information
C. C. Marty

Department of Mechanical Engineering, Applied Sciences National Institute, Villeurbane, France

J. Eng. Ind 99(3), 682-684 (Aug 01, 1977) (3 pages) doi:10.1115/1.3439298 History: Received January 07, 1976; Online July 15, 2010


In the E.D.M. process one can correlate on the basis of a heat conduction model the material surface temperature with adimensional parameters. A mathematical formulation is proposed. For a given heat input and a maximum surface temperature it is demonstrated that crater depth and radii of the heat source are correlated by an universal function. Experimental data give, for many materials, a surface temperature of the same magnitude as the boiling point.

Copyright © 1977 by ASME
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