Experimental investigation into electrochemical discharge peripheral surface grinding process of polymer nanocomposites
by Nandani Singh; Vinod Yadava; Pragya Shandilya
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 25, No. 1, 2023

Abstract: Polymer nanocomposites, best possible emerging materials for multifunctional parts/products, are difficult-to-machine due to their enhanced mechanical properties. Electrochemical discharge machining (ECDM) has potential for machining such materials and has been used in configurations like drilling-ECDM, milling-ECDM, TW-ECDM and turning-ECDM. However, limited work has been found in Grinding-ECDM. Therefore, present work attempts to investigate grinding-ECDM. The experiments have been carried out based on one-parameter-at-a-time on indigenously developed experimental setup which has same configuration as conventional peripheral surface grinding; therefore, the process is named as electrochemical discharge peripheral surface grinding (ECDPSG). The effects of supply voltage, pulse-on time, electrolyte concentration, and wheel rotation on MRR and R_a have been analysed during machining of alumina-reinforced-epoxy-nanocomposite. The results show that for MRR, at wheel rotation 3 rpm and 4 rpm, pulse-on time is the dominating parameter, whereas at wheel rotation 5 rpm, supply voltage is the dominating parameter. For R_a, supply voltage is the dominating parameter at all wheel rotations.

Online publication date: Wed, 15-Mar-2023

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