TO STUDY THE EFFECT OF DIFFERENT REINFORCEM VARIOUS PARAMETERS IN ALUMINUM MATRIX COMPOSITE DURING CNC TURNING

Abstract

Metal matrix composites are emerging as advance engineering and structural materials and their demand are continuously growing in various sector with higher pace. Among all the metals matrix composite, aluminum matrix composite are coming out as a tough potential competitor for the conventional materials for having large number of applications in aerospace , manufacturing ,transportation ,defence ,sports and count goes on. Handpicking AMC over other metals is due to its ductility ,toughness ,strength and being less expensive .In this study, Aluminum Metal Matrix composite (AMC) has been fabricated using aluminum alloy Al 6063 T6 as base matrix material as aluminum characterizes the property of being light weight ,durable and strengthening it by adding two different type of reinforcements-one is hard ceramic particle Boron Carbide (B4C) which the third hardest material known and the other is a natural one-Egg shell powder which is easily accessible.B4C & Egg shell have been incorporated in the aluminium melt with the micro size of 104µm by creating vortex. Stir casting technique has been used to synthesize aluminum metal matrix composite because of being simple, cost-effective , convenient to use ,suitable for mass production and one of the proven process. Solidified composites were subjected to CNC turning in which process parameters like cutting speed, feed rate and depth of cut were kept constant for all. Evaluation of MRR, surface roughness, residual stress and temperature between tool-work piece interface were considered as responses. The experimental study revealed that MRR of hybrid and egg shell AMC’s were maximum. Analyzing surface roughness Ra through surface responses graph, minimum Ra was recorded for Hybrid AMC.Base alloy showed up a higher value for residual stress. Temperature measurement for Hybrid composite was recorded as maximum among all the AMC’s and base alloy.