Metal matrix composites (MMC) materials possess high specific strength and stiffness compare to common structural materials and are extensively used in automobiles, recreational
industries and aerospace applications. The most popular type of MMC is aluminium alloy reinforced with ceramics particles. These low cost composites provide higher strength, stiffness and fatigue resistance (Kennedy et al., 1997; Ravikiran and Surappa, 1997) with a minimal increase in density over the base alloy. Owing to the addition of reinforcing materials, which are normally harder and stiffer than matrix, machining becomes significantly more difficult than those of conventional materials, as reported in the earlier publications