A REVIEW ON ELECTRICAL DISCHARGE GRINDING: CURRENT STATUS AND FUTURE PERSPECTIVES

Akshat Srivastava Kulshrestha, Abhimanyu Singh Mertiya, Deepak Rajendra Unune and Ashok Kumar Dargar
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Akshat Srivastava Kulshrestha: Department of Mechanical-Mechatronics, Engineering, The LNM Institute of Information Technology, Jaipur, Rajasthan 302031, India
Abhimanyu Singh Mertiya: Department of Mechanical-Mechatronics, Engineering, The LNM Institute of Information Technology, Jaipur, Rajasthan 302031, India
Deepak Rajendra Unune: Department of Mechanical-Mechatronics, Engineering, The LNM Institute of Information Technology, Jaipur, Rajasthan 302031, India
Ashok Kumar Dargar: Department of Mechanical-Mechatronics, Engineering, The LNM Institute of Information Technology, Jaipur, Rajasthan 302031, India

Surface Review and Letters (SRL), 2023, vol. 30, issue 03, 1-24

Abstract: Electrical discharge machining (EDM) is widely applied for machining difficult-to-cut materials in mold and die industries. However, the major limitations associated with the EDM are low productivity and poor surface integrity of the machined surfaces. In recent years, several developments have been applied to overcome such limitations of EDM. Electrical discharge grinding (EDG) is a hybrid machining process that simultaneously involves the spark erosion action of EDM and the mechanical abrasion action of the grinding wheel for the material removal purpose. The rotating motion of the grinding wheel also contributes to the easy removal of debris particles, thereby improving the material removal. It is evident from the literature that the rotating motion of the grinding wheel enhances the flushing mechanism resulting in better performance of the process. This paper aims to present a comprehensive review of the research carried out in EDG, highlighting the result of the experimental, modeling, and optimization techniques applied in this area. Initially, the background of EDM and the need for hybrid EDM processes have been presented. Then, a few hybrid EDM processes have been discussed, addressing their advantages and limitations. Further, the concept of EDG and electrical discharge diamond grinding (EDDG) has been discussed, along with the classification of the EDDG process. Finally, this paper explores the current research status and future research perspective in the area of EDG and EDDG processes.

Keywords: Electrical discharge machining; electrical discharge grinding; electrical discharge diamond grinding; material removal rate; surface integrity (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S0218625X23300034

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