Optimization of WEDM Process Parameters Using Grey-Taguchi Approach for the Development of Turning Tool Insert

This research involves the development of the turning tool insert using an optimal combination of wire electrical discharge machining (WEDM) process parameters. It is very challenging to get high productivity and good surface finish simultaneously in manufacturing industries. However, grey relational analysis (GRA) is one of the simple and easy-to-implement multi-objective optimization techniques. The input parameters have been selected as pulse on time, pulse off time, current and voltage for machining of Fe-based hardfaced deposit. Material removal rate (MRR) and surface roughness (SR) have been selected as output parameters. The optimal combination of machining process parameters has been evaluated using GRA optimization technique for high productivity and good surface finish. Current has a predominant role during the machining while voltage has the least impact on response characteristics.