Advances in Electrical Discharge Machining: State-of-the-Art

Electrical discharge machining (EDM) is one of the widely used un-conventional machining processes. In EDM process, thermo-electric energy is utilized to remove undesired material from the parent material. The EDM is also referred as spark erosion machining. It has varied area of applications like die and amp; mold development, automotive and aerospace industries, medical implants, etc. With increase in demand of goods made by smart materials and alloys, more interest has gravitated toward the EDM process. The continuous improvement in the EDM process has drawn many researchers to carry out their study on this process. This article reviews the recent developments of EDM like powder EDM, near-dry and dry EDM, ultrasonic-assisted EDM, rotary EDM, magnetic-assisted EDM, etc.