Thermal analysis of in-situ microwave casting for efficient processing

Abstract

In the present work, in-situ microwave casting was analyzed for higher efficiency while aluminum casting at 2.45 GHz and 1400 W. Models of setup with different insulation arrangements were generated using a software tool. Simulation was carried out to find the optimum casting conditions. Results revealed that complete insulation of mold assembly enhances energy saving and reduces melting time; however, higher mold preheating results in longer solidification time and coarse grains in the cast. Mold assembly without insulation showed poor efficiency. Optimum results were obtained in a mold assembly consisting insulated pouring basin and charge with bare mold and sprue