Research on deformation and mechanics properties of tube-sheet single sided resistance spot welding

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Shanghai Jiao Tong University, Shanghai 200240, China [1 ]
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Zhongguo Jixie Gongcheng | 2007年 / 20卷 / 2490-2492+2501期
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摘要：
In the tube-sheet single sided spot welding (SSSW) process, welding quality is affected by welding deformation significantly. The deformation of tube-sheet SSSW was analyzed through electrode displacement and the influence of welding parameters on the deformation and mechanics properties of the SSSW joint was investigated. Then the effect of changing electrode force on the welding quality of SSSW was studied using characteristics of electrode force of servo gun. The experimental results show that the deformation is linear with electrode force and welding energy. However, when high electrode force or welding current applied, the tensile strength is decreased. In the welding or holding stage, diminishing electrode force can reduce the deformation and increase tensile strength, which helps to improve welding quality of SSSW.
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