PARAMETRIC OPTIMIZATION OF GRAPHITE PLATE BY WEDM

Wire electrical discharge machining is an emerging technology in the area of machining to very complex micro products. WEDM is a completely complex technique regarding the distinct method. Experimental investigation has been carried out in multi process micro EDM machine. WEDM technique is a highly complex, time varying & stochastic system, which is used in the fields of dies, molds, precision manufacturing and contour cutting etc. It is especially used for the aerospace and medical industries. The complex shape can be generated with high degree of accuracy and surface finish using CNC WEDM. Hence suitable selection of input variable for the WEDM process depends heavily on the operator’s technology & experience. In this present study the work piece of graphite plate is used. The Brass wire of 0.25mm diameter is used as a tool and distilled water is used as dielectric. The experimentation was planned as per Taguchi’s L9 Orthogonal array for machining of graphite material. For each experiment surface roughness and MRR is determined by using contact type surface coder and display screen of machine directly.