Modeling & Analysis of B4C Powder Mixed Wire EDM Process for Improving Performance Criteria of Ti6Al4V

Abstract

The present investigation represents the effect of B4C powder properties on performance characteristics of Ti6Al4V material. Boron carbide has good chemical resistance, low density and non-oxide properties. Due to that, it has a great impact on powder mixed wire EDM. The machining of Ti6Al4V is very difficult by other non-conventional processes when it is considered particularly through cutting operation with desired surface quality and strong economically. In this study pulse on time, pulse off time, peak current and gap voltage are considered as input parameter and analyzed the performance characteristics such MRR and SR. B4C Powder concentration and size in the dielectric are analyzed to get significant output. The optimum result is obtained from machining condition i.e. powder size 10μm and concentration 6gm/lit as for both performances like MRR and SR while machining controllable parameters are fixed i.e. Ip=2, Ton=30 and Toff=8. The machined surface is studied through microstructure image.