Influence of Process Parameters on CNC Turning of Aluminium Hybrid Metal Matrix Composites

Abstract

An effort has been made in this investigation to find the influence of turning process parameters on the machinability of hybrid metal matrix composite comprising alumina (Al2O3) and molybdenum disulphide (MoS2) particulates dispersed on aluminium casting alloy LM6 in turning process. Design of Experiments approach was used to plan the experiments and the acquired data were analysed using design expert software associated with response surface method (RSM). In this paper work cutting speed, feed and depth of cut were considered as input process parameters and the resultant force of cutting forces in three directions, Specific Cutting Pressure (SCP) and surface roughness Ra were considered as responses. Statistical analyses were carried out to estimate the performance of machining parameters. The influence of input parameters on machining-force, SCP and the surface roughness Ra were analysed using surface response graphs. The experimental study revealed that cutting speed and feed were the most influencing parameter that affects the machining force and SCP.