Modeling and analysis of surface roughness in WEDC of SiCP/6061 Al MMC through response surface methodology

摘要

The present research study deals the wire electric-discharge cutting (WEDC) of 10% SiCp/ Aluminum 6061 metal matrix composite (MMC). Response surface methodology (RSM) has been used to plan and analyze the experiments. Four WEDC 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 SiCp/6061 aluminum MMC using surface roughness as response parameter. The mathematical relationship between WEDC input process parameters and surface roughness was established to determine the value of surface roughness mathematically. To identify the significant factors for WEDC process, analysis of variance (ANOVA) was employed.