Numerical Simulation of Induction Heating of Aluminum Alloy Billets

Barman, N and Mukherjee, J and Dutta, P (2008) Numerical Simulation of Induction Heating of Aluminum Alloy Billets. In: 10th International Conference on Semi-Solid Processing of Alloys and Composites, September 16th -18th, 2008., Aachen, Germany, pp. 133-138.

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Abstract

In this work, a numerical model for induction heating is proposed. The heating process considers only interaction of electromagnetic effects and heat transfer, and is represented by an unsteady heat diffusion equation. The numerical simulation of the process is performed using a finite volume method in which the induction heating is represented by a volumetric heat source term. The heat source term is evaluated analytically using principles based on Faraday's and Biot-Savart laws. The technique is applied to the case of induction heating of a cylindrical A356 aluminum alloy billet. The model predicts magnetic flux density and temperature distribution during the heating process. The effects of process parameters, such as frequency and current density, on the temperature distribution are also studied. The results show that nearly uniform distribution of temperature can be achieved when the billet is heated slowly with low frequency and low supply current density.

Item Type:	Conference Paper
Series.:	SOLID STATE PHENOMENA
Publisher:	Trans Tech Publications Ltd
Additional Information:	Copyright of this article belongs to Trans Tech Publications Ltd.
Keywords:	Induction heating;modeling;temperature distribution;control of process parameters.
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	05 Nov 2009 06:45
Last Modified:	19 Sep 2010 05:25
URI:	http://eprints.iisc.ac.in/id/eprint/18823

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