Influence Of Tool Geometry And Performance Characteristics of En-19 Steel By Edm Using Taguchi Method

Abstract

The objective of the present work is to optimize the process parameters in EDM by using Taguchi’s design of experiments, which extensively been used. The process parameters chosen for the experiment are discharge current, open voltage, Toff, Ton and tool geometry. These parameters were selected because they can potentially affect Electrode wear ratio, material removal rate and tool wear rate in EDM operation and considered to be controllable factors. Since the EWR, MRR and TWR determine the economics of machining and rate of production, it is important to optimize the process parameters suitably to maximize the MRR and minimize the EWR.