Wire Electric Discharge Machining of Metal Matrix Composite Materials

Abstract

This chapter presents the wire electric-discharge machining (WEDM) of SiC p /Aluminum 6061 metal matrix composite (MMC). Response surface methodology (RSM) has been used to plan and analyze the experiments. Four WEDM input process parameters namely servo voltage, pulse-on time, pulse-off time and wire feed rate were varied to study their effect on the quality of cut in SiC p /6061 aluminum MMC using MRR and kerf as response parameters. The mathematical relationships between WEDM input process parameters and response parameters were established to determine the value of MRR and kerf mathematically. To identify the significant factors for WEDM process, analysis of variance (ANOVA) was employed. The recommended optimal process conditions have been verified by conducting confirmation experiments.