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Machinability Investigation of Aluminium Based Hybrid Metal Matrix Composite

P.Vinoth Kumar, S.Birundha Devi, G.Gowshikan, B.Balamuali

Metal matrix composites are used mostly in aerospace, space ships, automotive, nuclear, biotechnology, electronic and sporting goods industries. Due to their high cost, experiments are usually done to reduce the cost of the composites and in expensive materials are utilized for metal matrix composites. Aluminum alloys are alloys in which aluminum is predominant metal. During stir casting, 1 Kg of Al (6351) has been taken with 50gm by wt. % of Sic and 50gm by wt. % of B4C as Sample. Then the sample is made in the form of cylindrical rod of 10mm diameter and 30mm length. This study describes multi-factor based experiments that are applied to optimization on machinability of stircast aluminum alloy 6351 with Silicon Carbide and Boron Carbide reinforced metal matrix composites (MMC’S). The effects of parameters such as Cutting Speed, Feed Rate, and Depth of cut on the Power, Surface Roughness, and Material Removal Rate are analyzed using Grey relational analysis on a CNC turning machine. Analysis of variance (ANOVA) is also performed to identify which design parameters significantly affect the machinability of the composite.