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Meeting Materials Science & Technology 2020
Symposium Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
Presentation Title Recent Developments In Microwave-metal Discharge Based Machining Process and Associated Challenges
Author(s) Anurag Singh, Gaurav Kumar, Apurbba Kumar Sharma
On-Site Speaker (Planned) Apurbba Kumar Sharma
Abstract Scope 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.


Deforming Polycrystalline Ceramics by Dislocation Based Plastic Deformation
Engineering Far-from-Equilibrium Materials Using Electromagnetic Fields
Ionic and Mixed Ionic Electronic Conductor Oxides for Microwave Active Catalysis
Laser Ablation & Passivation of Aluminum Alloys
Laser Processing Cokes and Chars
Microwave-assisted Hydrothermal Carbonization of Switchgrass and Low Rank Coals for Solid Fuel Production
Recent Developments In Microwave-metal Discharge Based Machining Process and Associated Challenges
Study of Mechanical Properties of Microwave Processed Biodegradable Metal Composites
The Effect of Microwave Sintering on Additively Manufactured Ceramics
The Use of Alternate Electromagnetic Fields to Control Biofilm

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