Laser Beam Assisted Machining of Metal Matrix Composites Reinforced by SiC Particles

Abstract. The main objective of the present work was to analysis an effect of laser assisted machining (LAM) when turning the AlSi9Mg alloy reinforced with 20 vol.% particles of SiC. Metal Matrix Composites (MMC) have been found in different industrial applications due to their excellent properties compared to conventional materials. MMCs due to hard ceramic reinforcing components are difficult to machine using conventional manufacturing processes. The applied laser assisted turning process was used to heat the cutting zone, the aluminum matrix becomes softer and easer in plastic deformation, which leads to reduction of pushing force of the SiC particles on the clearance face of the cutting tool, with is the reason of cutting tool wear.