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Friction Welding of Thixocast A356 Aluminium Alloy

Singh, Shailesh K and Chattopadhyay, K and Dutta, Pradip (2012) Friction Welding of Thixocast A356 Aluminium Alloy. In: http://dx.doi.org/10.4028/www.scientific.net/SSP.192-193.305 , OCT 08-11, 2012 , Cape Town, SOUTH AFRICA, pp. 305-310.

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Official URL: http://www.scientific.net/SSP.192-193.305

Abstract

In this paper, a numerical model for friction welding of thixo-cast materials is developed, which includes a coupling of thermal effect and plastic deformation using a finite element method (FEM). As the constitutive equations for flow behavior of materials for a thixo-cast material are expected to be different from those of conventionally cast material of the same alloy, the necessary material data are experimentally determined from isothermal hot compression tests of the A356 thixocast alloy. The Johnson-Cook model has been employed to represent the flow behavior of the thixocast A356 alloy. The purpose of this FEM analysis is to provide better understanding of the friction welding process of thixo-cast material, and to obtain optimized process parameters before an actual welding is carried out.

Item Type: Conference Proceedings
Additional Information: Copyright for this article belongs to the TRANS TECH PUBLICATIONS LTD, SWITZERLAND
Keywords: thixocast; constitutive equation; friction welding; thermo mechanical modeling; temperature and Von-Mises stress distribution
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Francis Jayakanth
Date Deposited: 15 Apr 2013 06:13
Last Modified: 15 Apr 2013 06:13
URI: http://eprints.iisc.ac.in/id/eprint/46412

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