Mechanical Characterization and Optimization of Machinability Characteristics of Aluminium Copper Graphite Silicon Carbide Hybrid Composites

摘要

Hybrid composites of aluminium alloyed with copper have strengths on par with regular metals. Addition of graphite and silicon carbide results in improved mechanical properties over the alloy. Machining is vital in producing different components of these hybrid composites. Inclusion of graphite reduces the difficulty of machining because of its solid lubricant characteristic. Influence of cutting speed, depth of cut and feed on turning of aluminium copper alloy with reinforcement of graphite is investigated when amount of silicon carbide is varied according to design of experiments. Tool wear increases with increase of cutting speed, depth of cut and feed. Increase of feed results in increase of both cutting force and roughness of turned surface.