Purpose In this study, powder mixed electro discharge machining (PMEDM) has been performed for the machining of AISI 304 stainless steel by using the tungsten carbide electrode when silicon carbide (SiC) powder is mixed with kerosene. The purpose of this study is to find the optimal value and ascertain the effect of significant machining parameters on surface crack density (SCD) of a machined surface of AISI 304. Design/methodology/approach A face-centered central composite design-based response surface methodology has been adopted for designing this experiment. Findings An increase in peak current and powder concentration decreases SCD, which is the main goal of this investigation. Originality/value From this investigation, an optimal value has been achieved to minimize the SCD and prevent fatigue and corrosion resistance of the workpiece.
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Bhaumik et al. (2017) studied this question.
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