Author : Arjun Biloria and Rupinder Singh

Wire electrical discharge machining process is a highly complex, time varying & stochastic process. The process output is affect by large no of input variables. Therefore a suitable selection of input variables for the wire electrical discharge machining (WEDM) process. WEDM is extensively use in machining of conductive materials when precision is of prime importance. Rough cutting operation in wire EDM is treated as challenging one because improvement of more than one performance measures viz. Metal removal rate(MRR), surface finish & cutting width (kerf) are sought to obtain precision work A proper selection of machining parameters is a must for the wire electrical discharge machining. The selection depends mainly on the operator’s technology and experience because the range of parameters is quite diverse based on the Taguchi quality design method and ANOVA, an approach to determine parameter setting is propose. The important factors affecting the machining parameters like MRR, gap width, surface roughness, sparking frequency, average gap voltage and normal ratio are determine. The experimental work will show that the WEDM process parameters can be adjust so as to achieve better Metal Removal Rate.

Keywords: Wire electrical discharge machining, MRR ANOVA etc.

Article published in International Journal of Current Engineering and Technology, Vol.4, No.5 (Oct-2014)