Investigation of machining characteristics of LBMed Al Al2O3 Al SiC and Al ZrO2 MMCs

Abstract

In the past time, MMCs materials were famous by the name of steel-wire reinforced copper. This MMC was the material named as continuous-fiber reinforced composites. In 1960s, the aerospace industry was demanding for the high performance material having low weight and high thermal coefficient. The development of MMCs material in the late 1980s provided new revolution to the aviation industry. With the advancement in the properties of these materials, the applications started towards the development of critical space system. Metal matrix composite is a distinct material as it has valuable physical properties as compared to other materials. MMCs gain the properties of two different materials by various fabrication processes. It composed of two or more distinct phases namely matrix phase and reinforcing phase. This material has many applications due to its different properties such as adjustable coefficient of thermal, high strength, high temperature stability expansion, high stiffness, low density, high electrical and thermal conductivity, corrosion resistance, improved wear resistance etc. The fabrication process of MMCs materials depends on the application in particular field. The main focus is provided on the uniform distribution of reinforcement components (reinforced particles) during the manufacturing process of MMCs material. Aluminium alloy (5052) MMCs is made by stir casting method which may replace some of the old industrial applicable materials. The machining of these MMCs materials by the traditional machining methods is a typical process due to some issues related to tool wear and surface roughness. Now days the non-conventional machining process is being used for machining of these metal matrix composites materials.