Study on Fabrication processes and Machinability of  Metal Matrix composites � A review on Advanced  Applications

S.Prabagaran; G.Chandramohan; P.Shanmughasundaram

Volume : IV, Issue : III, March - 2014

Study on Fabrication processes and Machinability of Metal Matrix composites � A review on Advanced Applications

S. Prabagaran, G. Chandramohan, P. Shanmughasundaram

Abstract :

Characterization of Metal matrix composites like faication processes, machinability were explored in this study. Faication methods were explored for various composites which were giving positive characterization in this article. Few processes were discussed where we see good surface finish, dimensional accuracy, elimination of porosity and shrinkage, high strength to weight ratio, improved wear resistance, higher corrosion resistance, higher hardness, resistance to high temperature, improved fatigue , better creep strength and ductility.In specific faicating metal matrix composites by Metal Injection Moulding which is a near net–shape manufacturing technology that is capable of mass production of complex parts cost–effectively. The unique feature of this process make it an attractive route for the faication of metal matrix composite materials.Centrifugal casting process capable of achieving high pressures for faication of metal matrix composites was demonstrated resulting finer particle distribution, micro segregation in the matrix, and the soundness in quality. Spark plasma sintered composites from the mixtures of Si and Al phases was demonstrated to result Si grains distributed in the Al matrix homogenously. At lower stirring speed and lower stirring time particle clustering of SiC particles with high Al.alloy was more alongwith uniform hardness. At higher stirring speed and stirring time of same resulted better distribution of particles at ununiform hardness.