Machining characteristics evaluation of aluminium composites based on cBN and PCD inserts
Abstract Today's industrial trend encouraged the usage of advanced materials due to their superior properties like a high strength to weight ratio and good corrosion resistance. This advanced materials also termed as composite, especially aluminium based composite having a vast number of applications such as transportation, aerospace, automobiles and defence. Generally aluminium based composites were reinforced with alumina, silicon carbide, boron carbide and graphite etc. to improve their properties. Machining of composite materials is inevitable to realize the products or components. In this paper, it is aimed to present that the AA 6061 B4C Graphite composite fabrication and its machining characteristics. The aluminium composite was fabricated through stir casting route. The turning experiment was conducted by varying the speed, feed and depth of cut. The machining performance was evaluated using PCD and cBN tools to the lesser tool wear attainment. SEM images analysis was carried out to assess the tool wear mechanism.