Multi-objective Optimization of WEDM Process Parameters Using NSGA-II Algorithm

In this paper, NSGA-II algorithm is applied to look for the variety of optimum solutions in WEDM process problem. Four parameters, namely wire feed, pulse-on time and pulse-off time, and two machining criteria, i.e., kerf width and material removal rate, are, respectively, considered as input variables and responses. The obtained results showed that the proposed NSGA-II algorithm is an effective and appropriate strategy for optimizing the process of WEDM machining process parameters.