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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 83, 2023 - Issue 3
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Research Articles

Equivalent heat source approach in a quasi-steady-state laser-GMAW hybrid welding simulation

Zhiyi Zhanga School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China
,
Xu Zhaoa School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China;b State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China
,
Weihua Zhangb State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, P.R. China
,
Hui Chena School of Material Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, P.R. ChinaCorrespondence[email protected]
&
Daizhi Xiec School of Mechanical Engineering and Automation, Fuzhou University, Fujian, P.R. China
Pages 285-303 | Received 03 Jan 2022, Accepted 25 May 2022, Published online: 01 Aug 2022
 
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Abstract

A quasi-steady-state laser-GMAW hybrid welding simulation method was developed. The comprehensive effects of buoyancy, thermal capillary force, electromagnetic force and arc shear force were considered in the model, thus the temperature and flow fields characteristics of molten pool were obtained. At the same time, the heat source motion was realized based on the deformed geometry (DG) approach. The model can be applied to laser welding processes with different joint configurations or moving paths.

Acknowledgment

Thanks for Fuzhou University’s team for the help of simulation calculation.

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