Wire Electrical Discharge Machining Integrity Studies on the Aluminium Nanocomposite

Nanoparticles such as SiC and B4C are popularly used as reinforcement in the AMMCs. Nanoparticles are majorly hindering the implementation of conventional machining. In addition, the profile and contour machining on the harder material is difficult in conventional machining process. Hence, non-conventional machining processes were used to shape the composite. Wire electrical discharge machining is normally proposed to cut the intricate shape with good surface finish on aluminium metal matrix composite. This present study investigates the effect of process parameters on the response parameter of WEDM on the aluminium metal matrix composite. Experiments were done by using a Taguchi’s L18 orthogonal array. The interaction of machining parameter (Ton, Toff, servo voltage, current) on the response parameter (kerf, MRR, surface roughness) was determined using analysis of variance (ANOVA). Analysing signal to noise ratio, the optimum machining parameter was determined. Regression analysis was used to find the relationship between predicted and actual value. The result shows that voltage and pulse on time were the most significant factor for kerf width increment.