Effect of wire electrode materials on die-corner accuracy for Wire Electrical Discharge Machining (WEDM) of Inconel 718

Abstract

In present investigation to analyzed the effects of tool electrode on machinability of Inconel 718 using wire electrical discharge machining. An L16 orthogonal array has been used for experimentation by considering machine controllable factors (i.e. pulse on time, wire speed, flushing pressure and discharge current). The influence of the process parameters on the responses, such as, surface Roughness and corner error were studied. From the results, it has been observed that tool material has the significant nature on determining performance variables. It has been also observed that zinc coated brass wire have better performance on surface roughness and corner error than the uncoated brass wire. � 2017 Elsevier Ltd. All rights reserved.