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RESEARCH PAPERS: Heat Transfer in Manufacturing

Transport Phenomena During Resistance Spot Welding

[+] Author and Article Information
P. S. Wei, S. C. Wang, M. S. Lin

Institute of Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan

J. Heat Transfer 118(3), 762-773 (Aug 01, 1996) (12 pages) doi:10.1115/1.2822697 History: Received March 22, 1995; Revised April 01, 1996; Online December 05, 2007

Abstract

Unsteady, axisymmetric transport of mass, momentum, energy, species, and magnetic field intensity with a mushy-zone phase change in workpieces and temperature, and magnetic fields in electrodes during resistance spot welding, are systematically investigated. Electromagnetic force, joule heat, heat generation at the electrode–workpiece interface and faying surface between workpieces, different properties between phases, and geometries of electrodes are taken into account. The computed results show consistencies with observed nugget growth, electrical current, and temperature fields. The effects of the face radius and cone angle of the electrode, parameters governing welding current, electrical contact resistance, magnetic Prandtl number, electrical conductivity ratio, and workpiece thickness on transport phenomena are clearly provided.

Copyright © 1996 by The American Society of Mechanical Engineers
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