Machinability of AA7068/TiC metal matrix composites.

Metal matrix composites are widely used in number of engineering applications due to its improved qualities over the conventional materials. This paper aims in optimization of machining responses like surface roughness (R_a), cutting force (F_z), in turning of AA7068/TiC MMCs using particle swarm optimization technique. The control parameters aken into account are wt. % of TiC, cutting speed (V), feed rate (f), depth of cut (d). Experiments were designed and carried out using central composite design (CCD) in design of experiments (DOE) on a lathe machine with three different types of cutting tool inserts viz. KC5410, KCP05, and K30. Quadratic predictive model was developed for the machining responses and their adequacy has been check through ANOVA. [ABSTRACT FROM AUTHOR]