Abstract
This paper describes the development of a simulation method to evaluate the accuracy of rough cutting in WEDM. The simulation program is a repetition of pulse discharge cycle based on the rule that the point where the working gap is shortest is selected as the discharge location. As some of the parameters used in the simulation are difficult to measure from experiments, they are obtained by solving the reverse problem by parametric programming. Investigations were carried out to evaluate simulation accuracy by executing simulation under various machining conditions after substituting identified parameters into the simulator. The simulation results agreed with the experimental ones qualitatively in terms of cutting groove shape, machining speed, and discharge frequency.
