Reverse Simulation of Sinking EDM for Intricate Shapes

Abstract

This research aims to develop a reverse simulation method to obtain the shape of tool electrode before machining from the shapes of workpiece before and after machining in sinking EDM. To apply the reverse simulation method to tool electrodes which have large curvatures, a special operation was added to the simulation program to consider the influence of the curvature. The validity of the principle of the modified reverse simulation was demonstrated in the machining of a V-shaped cavity.