A critical insight into the use of EDM for machining advanced ceramic composites - a review

• Published in: Machining science and technology Vol. 29; no. 5; pp. 723 - 746
• Main Authors: L., Selvarajan, B., Prakash, T., Niranjan, Reddy S., Madhava, B., Singaravel, K., Periasamy
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 03.09.2025
• Subjects: Advanced ceramic composites (ACC); EDM; electrode; workpiece
• ISSN: 1091-0344; 1532-2483
• DOI: 10.1080/10910344.2025.2513028

Electrical discharge machining (EDM) is a technique used to make advanced ceramic composites (ACC). This research aims to explain how EDM works by analyzing tool electrodes and main machining parameters. The great hardness, low heat conductivity and vulnerability to surface flaws of ceramics make EDM machining a formidable obstacle. In this study, we summarize important results from previous research on the topic of advanced ceramic composites and how EDM electrodes and machining settings play a role in this process. The research looks at how different electrode materials affect machining performance metrics such as material removal rate (MRR), tool wear rate (TWR) and surface integrity. It also looks at ways to enhance efficiency using hybrid EDM methods. Additionally, the article points out areas where further study is needed and proposes ways forward for improving electrode materials, process management techniques and hybrid machining methods used in EDM on ceramics. Researchers and experts in the field may use this work as a significant resource to improve the accuracy and efficiency of EDM for ceramic composites. It consolidates experimental data with theoretical models.