Casting of commercially available bulk copper by microwave melting process and its characterization

[摘要] Metallic materials are known to reflect microwaves owing to lower skin depth. The present work demonstrates melting of commercially available bulk copper using Microwave Hybrid Heating (MHH) technique. Microwaves generated from a 3.3 kW furnace operating at 2450 MHz are used as a source to heat and melt copper. Complete melting of copper is achieved in 25 minutes. As-received and as-cast copper are characterized using X-Ray Diffraction (XRD) technique to study the phases present. Microstructural study of the as-cast copper under Scanning Electron Microscope (SEM) shows closely packed grain structure with negligible porosity. Hardness of the as-received and as-cast copper are also measured.

[发布机构] Department of Mechanical Engineering, Malnad College of Engineering, Hassan; Karnataka; 573202, India^1;Department of Industrial and Production Engineering, Malnad College of Engineering, Hassan; Karnataka; 573202, India^2

[效力级别] 机械制造

[关键词] As-cast;Metallic material;Micro-structural;Microwave melting;Skin depth