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Finite element modelling of resistance spot welding of aluminium with spherical tip electrodes

DSpace at IIT Bombay

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Title Finite element modelling of resistance spot welding of aluminium with spherical tip electrodes
 
Creator DE, A
 
Subject nugget growth
 
Description A FEM based simulation model of the resistance spot welding process has been developed. The current simulation accounts for the non-uniform current density distribution in the sheet-electrode geometry and the clastoplastic deformation of the sheet due to electrode force, especially with spherical tip electrodes, since these effects are driven by and contribute to the main heat transfer analysis, which is governed by the internal heat generation within the sheet-electrode geometry as well as along the contact surfaces. The latent heat of transformation during melting or solidification, the variation of sheet/sheet contact resistance with temperature, and temperature dependent thermophysical material properties have been incorporated. The model also calculates the local time-temperature history of the sheet electrode geometry that cart he coupled with appropriate metallurgical reactions to determine metallurgical changes and subsequent mechanical properties in both the fusion zone and the HAZ.
 
Publisher MANEY PUBLISHING
 
Date 2011-08-18T04:42:43Z
2011-12-26T12:55:35Z
2011-12-27T05:41:18Z
2011-08-18T04:42:43Z
2011-12-26T12:55:35Z
2011-12-27T05:41:18Z
2002
 
Type Article
 
Identifier SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 7(2), 119-124
1362-1718
http://dx.doi.org/10.1179/136217102225002998
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9895
http://hdl.handle.net/10054/9895
 
Language en