Abstract: The present research study deals the Wire electrical discharge machining (WEDM) process for High carbon high-chromium steel (D3) with multi-parametric optimization based on the Taguchi method and desirability function analysis. Experiments were carried out based on an L9 orthogonal array. The effect of process parameter such as pulse-on time (Ton), pulse-off time (Toff), current (IP) and wire speed (Ws) were analyzed on the performance measures such as material removal rate, dimensional deviation, gap current and machining time. The optimum cutting conditions are obtained by Taguchi method and desirability function. The analysis of variance (ANOVA) is applied to investigate the effect of input process parameters. Finally, the confirmation experiment was carried out for the optimal machining parameters, and the betterment has been proved.

Keywords: D3 tool steel, Desirability Function Analysis (DFA), Multi-parametric optimization, Wire Electrical Discharge Machining (WEDM).