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<p>Electro-discharge machining (EDM) is a&#xa0;widely used advanced machining process used to create complex profiles on electrically conductive but difficult-to-machine materials. EDM has evolved over time to meet industrial demands and has become widely accepted across industries, while the growing use of advanced materials has prompted researchers to enhance the process further. This paper presents a&#xa0;comprehensive review of current research trends and techniques aimed at enhancing machining performance, covering various innovative approaches across EDM variants. It also scrutinizes challenges encountered in EDM operations, presents solutions proposed by researchers to optimize performance, and identifies various approaches to reduce machining time and enhance machining quality. Environmental concerns related to the sustainability and biodegradability of dielectrics used in EDM, alongside advancements in electro-discharge coatings, are thoroughly addressed. This paper synthesizes insights from diverse sources, aiding researchers with current trends and providing summative remarks on study objectives in each section. The review concludes by summarizing its findings and suggesting directions for future research.</p>

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Emerging frontiers in electro-discharge machining: A comprehensive review of research trends, challenges, and innovative solutions

  • 期刊论文

  • 发表日期：

    2025年5月2日

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  • Tapas Chakraborty,
  • Bappa Acherjee,
  • Amitava Mandal

摘要

Electro-discharge machining (EDM) is a widely used advanced machining process used to create complex profiles on electrically conductive but difficult-to-machine materials. EDM has evolved over time to meet industrial demands and has become widely accepted across industries, while the growing use of advanced materials has prompted researchers to enhance the process further. This paper presents a comprehensive review of current research trends and techniques aimed at enhancing machining performance, covering various innovative approaches across EDM variants. It also scrutinizes challenges encountered in EDM operations, presents solutions proposed by researchers to optimize performance, and identifies various approaches to reduce machining time and enhance machining quality. Environmental concerns related to the sustainability and biodegradability of dielectrics used in EDM, alongside advancements in electro-discharge coatings, are thoroughly addressed. This paper synthesizes insights from diverse sources, aiding researchers with current trends and providing summative remarks on study objectives in each section. The review concludes by summarizing its findings and suggesting directions for future research.