Machinability analysis and edm process optimization on the hybrid nano particle reinforced aluminum matrix composites

Abstract

An Aluminum Al6061 matrix composite reinforced with hybrid nano particles (Cu,Gr and Al2O3 were prepared, in the form of plates, using stir casting technique. Though the researchers are many, reinforcing a hybrid mixture in a matrix and studying the properties are unique and scanty. The material thus developed showed few unique characteristics. The machinability aspects of the material were analyzed. The conduciveness of the machining processes based on the expected surface quality and the rate of material removal were determined. Wirecut EDM was the technique adopted to machine the material and the process was optimized using the central composite design of the RSM technique. The design of experiments was done before the experimentations and the outputs were analyzed using the ANOVA option with the help of Design expert software. Such a material with good machinability could be used to develop the structural support systems like bearings, bushes, etc.