Article: Experimental investigation into electrochemical discharge peripheral surface grinding process of polymer nanocomposites Journal: International Journal of Machining and Machinability of Materials (IJMMM) 2023 Vol.25 No.1 pp.21 - 40 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 Ra 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 Ra, supply voltage is the dominating parameter at all wheel rotations. Inderscience Publishers - linking academia, business and industry through research

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Title: Experimental investigation into electrochemical discharge peripheral surface grinding process of polymer nanocomposites

Authors: Nandani Singh; Vinod Yadava; Pragya Shandilya

Addresses: Department of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India ' Department of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India ' Department of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India

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.

Keywords: electrochemical discharge grinding; electrochemical discharge surface grinding; MRR; alumina-reinforced-epoxy-nanocomposites; ARENC; polymer nanocomposites; PNCs.

DOI: 10.1504/IJMMM.2023.129587

International Journal of Machining and Machinability of Materials, 2023 Vol.25 No.1, pp.21 - 40

Received: 05 Jul 2022
Accepted: 19 Sep 2022
Published online: 15 Mar 2023 *

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Title: Experimental investigation into electrochemical discharge peripheral surface grinding process of polymer nanocomposites

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