EFECT OF BORON CARBIDE (B4C) ABRASIVE ON THE PERFORMANC OF EDM

Abstract

In this paper the B₄C particles are used with dielectric fluid to optimize the process parameters of die sinking EDM. It gives the combined effect of Abrasion and thermal interactions to improve the EDM performance. The dielectric fluid mixed with abrasive, facilitate the bridging effect and minimize the insulating strength of the dielectric fluid. It improves the SR and MRR. The experiments are designed by Taguchi technique and the grey relation Taguchi technique is applied to optimize the multiple response characteristics. An experimental set up is developed to conduct the experiments. The multiple response characteristics is converted into a single response optimization by grey relation analysis technique. Larger value of Grey Relational Grade Taguchi Technique is considered as better multiple performance characteristics by GRG value. The significant parameters are pulse current, abrasive size and abrasive concentration.