14-11-2014, 02:46 PM
Abstracts: In today's world, composite materials have many engineering application for manufacturing, packaging, automobile industry. For the machining of these composite Materials, many accurate and cost effective machining processes have been used to reduce the machining time and man hour. The work piece of particulate reinforcement metal matrix composite (PRMMC's) of aluminum as Matrix material and alumina (Al2O3) and silicon carbide (SiC) powder as reinforcement material is prepared by the metal stir casting process with different percentage variation in proposition of silicon carbide (SiC) powder to Aluminium matrix. The casting is done using stirrer prepared of SS 304 connected to the motor driven by the AC supply which is used for the proper mixing of the composites. Various testing can be carried out to check the properties of material with the standard. The prepared work piece of the composites are then carried out for machining on CNC milling to evaluate surface roughness with different process variables which are speed, feed and depth of cut. Analysis of the prepared machining parts is carried out using design of experiment Taguchi technique with mixed level array of L18 matrix and L6 matrix. For confirmation of analyzed result, outcome was tested by ANNOVA method