Application of Response Surface Methodology For Determining MRR and TWR Model In Die Sinking EDM of AISI 1045 Steel
نویسندگان
چکیده
Whereas the efficiency of traditional cutting processes is limited by the mechanical properties of the processed material and the complexity of the workpiece geometry, electrical discharge machining (EDM) being a thermal erosion process, is subject to no such constraints. The base material used for this study was an AISI 1045 steel with copper electrode. This study highlights the development of a comprehensive mathematical model of Tool wear ratio (TWR) and Material removal rate (MRR) for correlating the interactive and higher order influences of various electrical discharge machining parameters like Peak current (IP), Spark on time (Ton) and Spark off time (Toff) through response surface methodology (RSM), utilizing relevant experimental data as obtained through experimentation. The machining experiments were conducted based on sequential approach using Full Factorial. The adequacy of the above the proposed models have been tested through the analysis of variance (ANOVA).
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