Evaluation of Machinability Performance MRR and SR of AA7050-7.5% B4C-T6 Composite through EDM

Abstract

The Al-B4C composites are exclusively applicable in the structural components of automobiles and aerospace. It is also termed a hard-to-cut material. Hence, the Machining of such materials with firm design and close tolerance is a key concern in the present era of the manufacturing world, particularly through the conventional machining process. The prime motive of this paper is to evaluate the Machinability performance in terms of MRR and SR of the AA7050-7.5% B4C-T6 Composite using die-sinking EDM. The Taguchi L9 DOE was employed for the execution of experiments to assess the machinability performance of the composite in terms of MRR and Ra, with the simultaneous effect of input parameters such as Ip, Ton, and sand parking voltage (Sv). Further, the parameters were optimized using the Taguchi Analysis. ANOVA analysis was performed to evaluate the significance and contribution of the input parameters toward performance measures.