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Advances in Materials Science and Engineering
Volume 2013 (2013), Article ID 543594, 9 pages
http://dx.doi.org/10.1155/2013/543594
Research Article

Critical Assessment of Temperature Distribution in Submerged Arc Welding Process

Department of ME&MME, ISM, Dhanbad 826004, India

Received 31 May 2013; Accepted 27 August 2013

Academic Editor: S. Miyazaki

Copyright © 2013 Vineet Negi and Somnath Chattopadhyaya. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Temperature distribution during any welding process holds the key for understanding and predicting several important welding attributes like heat affected zone, microstructure of the weld, residual stress, and distortion during welding. The accuracy of the analytical approaches for modeling temperature distribution during welding has been constrained by oversimplified assumptions regarding boundary conditions and material properties. In this paper, an attempt has been made to model the temperature distribution during submerged arc welding process using finite element modeling technique implemented in ANSYS v12. In the present analysis, heat source is assumed to be double-ellipsoidal with Gaussian volumetric heat generation. Furthermore, variation of material properties with temperature and both convective and radiant heat loss boundary condition have been considered. The predicted temperature distribution is then validated against the experimental results obtained by thermal imaging of the welded plate, and they are found to be in a good agreement.