Parametric Optimization during wire Electrical Discharge Machining using Response Surface Methodology

摘要

Present study has been made to optimize the process parameters during machining of WC-24%Co Composite by wire electrical discharge machining (WEDM) using response surface methodology (RSM). Four input process parameters of WEDM (namely servo voltage (V), pulse-on time (TON), pulse-off time (TOFF) and Current (A) were chosen as variables to study the process performance in terms of cutting speed (CS) and wire wear rate (WWR). The analysis of variance (ANOVA) was carried out to study the effect of process parameters on process performance. In addition mathematical models have also been developed for response parameter. Therefore, using desirability function, parameters have been predicted for maximizing the machining speed and minimization of wire wear rate.