Effect of Process Parameters on Surface Roughness and Cutting Force During End Milling of Al A356-SiC_p Metal Matrix Composites

摘要

This paper presents the influence of process parameters on CNC end milling characteristics of Aluminum alloy (A356) reinforced with 3 and 6 volume percentage of SiC particle reinforced metal matrix composite fabricated using stir casting method by utilizing Response Surface Methodology. A Box-Behnken based design of experiment technique was used to conduct the experiment and. study the effects of selected process parameters, such as cutting speed, feed, depth of cut and volume % of SiC_p on Surface roughness and Cutting force. The machining study was carried out using uncoated cemented carbide inserts without cutting fluid in Vertical Machining Center. The change in performance with respect to process parameters was analyzed and the predictive model was developed using Design Expert. From the experimental results depth of cut and cutting speed were identified as the most significant factors for both responses. Optimal levels of process parameters on the performance measures were also obtained.