Modeling and Parametric Investigation of WEDM for D-2 Tool Steel Using RSM and GA

Wire Electric Discharge machine is non-conventional thermo-electric spark erosion machining process to cut conductive metal and alloys. The main mechanism of machining is spark erosion between the tool and work-piece. High carbon high chromium tool steel (D-2) is a hard alloy with high hardness and wear resisting property. The purpose of this study is to investigate the effect of process parameters on the machining of D-2 tool steel. D-2 tool steel used in tool and die industries. Response Surface Methodology (RSM) is used to formulate a mathematical model which correlates the independent process parameters with the desired dimensional deviation. The central composite rotatable design has been used to conduct the experiments. Genetic algorithm is used to predict the best individual parameters along with the predicted fitness values.