Experimental Investigations of EDM Process Parameters for Tool Wear Rate Based on Orthogonal Array

Abstract

The global utilization of electric discharge machining is proving as a smart machining process among the tool makers for the production of molds and dies. In the Industrial tool room survey it is observed that the critical aspect of the EDM technology is the availability of machining data in terms of tuned process parameter as on needed basis. As the electrode undergoes wear continuously in spark phenomenon, therefore detailed knowledge with regards to optimization on tool wear is essential in order to improve accuracy in designing the electrodes and surface quality. In this paper experimental investigation is carried out to improve performance measures in terms of tool wear rate by optimizing the process variables, particularly in ram electric discharge machining. Design of experimentation (DOE) and ANOVA for optimization of process parameters is investigated in order to improve the responses of the machining in terms of lowering tool wear rate within work interval of semi finish machining.