Abstract
This research presents the analysis of parametric optimization of spark erosion machining process of Ti-6Al-4V alloy. In spark erosion machining, copper is used as electrode material and severe plastic deformation process, namely equal channel angular pressing (ECAP), has been applied over electrode material to improve the machining process. The following parameters are selected (1) ECAP pass, (2) current intensity, (3) spark presence and (4) spark absence to understand the machinability of Ti-6Al-4V alloy. The machining parameters were optimized using Grey coupled principal component analysis approach. Experimental results reveal that ECAP acts as the effective parameter in governing the output response. By using multi-criteria decision-making approach of spark erosion machining with Ti-6Al-4V alloy, the optimum conditions of machining parameters were obtained. It is noted that ECAP and spark presence are the most influencing factors of spark erosion machining process for controlling tool erosion, work erosion and surface roughness.
Published Version
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