Machining parameters selection for varying surface in EDM
by Joze Valentincic, D. Kuser, S. Smrkolj, Oki Blatnik, Mihael Junkar
International Journal of Materials and Product Technology (IJMPT), Vol. 29, No. 1/2/3/4, 2007

Abstract: To achieve high removal rate and low electrode wear when roughing by the sinking electrical discharge machining process (EDM), appropriate average surface power density is required in the gap between the workpiece and the electrode. Since machining surface varies with the depth of machining, the rough machining parameters have to be selected on-line to obtain appropriate average surface power density in the gap. In this paper, a system for on-line selection of the machining parameters according to the given machining surface is presented. The selection of the machining parameters is based on the acquisition of only one process attribute, i.e. the percentage of short-circuit discharges, which is significant improvement comparing to known systems.

Online publication date: Mon, 09-Apr-2007

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