A review on current research trends in electrical discharge machining (EDM)

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Multi-response optimization of EDM with Al–Cu–Si–TiC P/M composite electrode (2009, background): “Its unique feature of using thermal energy to machine electrically conductive parts regardless of hardness has been its distinctive advantage in the manufacture of mold, die, automotive, aerospace, and surgical components [1–3].”
Optimization of Multiple Characteristics of EDM Parameters Based on Desirability Approach and Fuzzy Modeling (2013, background): “It works based on the thermoelectric energy between the workpiece and the electrode [7-8].”
State-of-the-art of surface integrity in machining of metal matrix composites (2019, background): “Due to the non-contact nature, EDM machining enjoys some advantages in comparison with conventional machining including [91,92]: independent tool-wear from workpiece materials hardness; negligible machining forces; ability to machine complicated shapes at high aspect ratios and accuracies.”
A cutting force model for rotary ultrasonic machining of brittle materials (2012, background): “Machining of brittle materials has gained significant importance over the last two decades [1-10].”
Fabrication and Machining of Metal Matrix Composites: A Review (2016, background): “[66] revealed that although several advances have been made in this area, yet this process aims to improve the efficiency of machining.”