Applications of metal matrix composites (MMC) are increasing day by day in a number of industries, especially in the aerospace and automotive industries. These innovative materials open up unlimited possibilities for modern materials science and development; MMC characteristics can be integrated into the material, custom manufactured, depending on the application. From this potential, metal matrix composites meet all the designer's desired designs. Metal matrix composites are formed by a combination of metal matrix and hard reinforcing phase. The incorporation of silicon carbide particles gives their higher specific strength, specific stiffness, high temperature capability, lower thermal expansion coefficient and better wear resistance. (Houyem Abderrazak and Emna Selmane Bel Hadj Hmida 1996). For many researchers, the term metal matrix composites (MMCs) is often equated with the term lightweight metal matrix composites (LMCs) due to their high strength-to-weight ratio (low density, high tensile strength). Substantial progress in the development of lightweight metal matrix composites has been made in recent decades, such that they have been able to be introduced into the most important applications. In engineering, particularly in the automotive industry, LMCs have been used commercially in fiber-reinforced pistons and aluminum crankcases with reinforced cylinder surfaces as well as particle-reinforced brake rotors [1]. As they are comparatively harder, they are generally difficult to machine. Say no to plagiarism. Get Custom Essay on “Why Violent Video Games Should Not Be Banned”?Get the original essayPrevious literature indicates that polycrystalline diamond (PCD) tools are mainly used for machining particle-reinforced MMCs, because they present less wear and useful utility. tool life when machining these materials with PCD tools, which are harder than alumina Al2O3 and silicon carbide (SiC), and also have no chemical tendency to react with the material of the part. However, due to the extremely high cost of PCD tools, many industries are limiting their use and looking to less expensive tools like cemented carbides and ceramics to machine these materials. In this article, a study is carried out on the machinability of LM13. /SiC metal matrix composite at different cutting speeds, feed rates and cutting depths using a tungsten carbide tool. The influence of these parameters on surface roughness and tool wear is studied and it is observed that the tool tip temperature increases with increasing cutting speed. At high speeds, the surface finish is least affected. The surface condition deteriorates at high feed rates; therefore, to obtain a good surface finish, the feed rate can be kept low. At low speeds, the cutting force is high, and the tendency of the working material to form a built-up edge is also stronger. At lower speeds, surface roughness increases with increasing feed, but at higher speeds, surface roughness is less dependent on feed..