|About this Abstract
|Materials Science & Technology 2020
|Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
|Recent Developments In Microwave-metal Discharge Based Machining Process and Associated Challenges
|Anurag Singh, Gaurav Kumar, Apurbba Kumar Sharma
|On-Site Speaker (Planned)
|Apurbba Kumar Sharma
In recent times, microwave energy-based processes have been found to be more energy-efficient, faster, and yielding equal or better quality products compared to conventional processes. This article provides an overview of the microwave-metal discharge based machining process, which involves the interaction of a sharp metallic tool with microwaves to trigger microwave-metal discharge and resulting high-temperature plasma to cause ablation of the targeted zone of the workpiece. This novel process has demonstrated the capability to drill thick non-metallic plates rapidly, but holes drilled in metallic materials are currently limited to thin sheets. Generation of repeatable, continuous, stable, and concentrated microwave-metal discharge-induced plasma and minimization of thermal damage are primary challenges during drilling of both the non-metallic and metallic materials. The exploration into factors affecting the characteristics of microwave-metal discharge-induced plasma as well as development in the tooling design of the process is future scope ahead.