OPTIMIZATION OF TRIBOLOGICAL CHARACTERISTICS OF AL7075-BORON NITRIDE COMPOSITES USING TAGUCHI METHOD

Abstract: The Taguchi method of quality control is an approach to engineering that emphasizes the roles of research and development, and product design and development in reducing the occurrence of defects and failures in manufactured goods. Stir casting is an economical method to produce aluminium matrix composites (AMCs). In the present work, Aluminium alloy AA7075 reinforced with various amounts (1, 2 and 3wt. %) of BN particles were prepared. The matrix alloy was melted in a furnace and stirred to form a vortex.BN particles were added to the periphery of the vortex and the composite melt was solidified in a permanent mold. The microstructures of the AMCs were studied using microscope. BN particles was observed to refine the grains and were distributed homogenously in the aluminium matrix. BN particle clusters were also seen in a few places. BN particles were properly bonded to the aluminium matrix. The reinforcement of BN particles improved the Wear analysis in Taguchi method of the AMCs.

Keywords: Aluminium Matrix Composites (AMCs), Particles Cluster, Taguchi Method.