| Numerical Analysis of Welding Residual Stress and Distortion in Laser＋GMAW Hybrid Welding of Aluminum Alloy T-Joint |
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| 引用本文： | Guoxiang XU,Chuansong WU,Xuezhou MA,Xuyou WANG. Numerical Analysis of Welding Residual Stress and Distortion in Laser＋GMAW Hybrid Welding of Aluminum Alloy T-Joint[J]. 金属学报(英文版), 2013, 0(3): 352-360 |
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| 作者姓名： | Guoxiang XU Chuansong WU Xuezhou MA Xuyou WANG |
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| 作者单位： | [1]Key Laboratory of Advanced Welding Technology of Jiangsu Province, Jiangsu Univeristy of Science and Technology, Zhenjiang 212003, China [2]Institute of Advanced Welding Technology, Shandong University,Jinan 250061, China [3]Harbin Welding Institute,China Academy of Machinery Science ＆ Technology, Harbin 150080,China |
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| 基金项目： | Sino-Russian Cooperation Research Project of China （No. 2009DFR50170）; the National Natural Science Foundation of China （No. 51105182） and the College Natural Science Foundation of Jiangsu Province （No. 11KJB460004）. |
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| 摘 要： | A 3-D finite element model is developed to predict the temperature field and thermally induced residual stress and distortion in laser+GMAW hybrid welding of 6061-T6 aluminum alloy T-joint. And the characteristics of residual stress distribution and deformation are numerically investigated. In the simulation, the heat source model takes into account the effect of joint geometric shape and welding torch slant on the heat flux distribution and a sequentially coupled thermo-mechanical method is used. The calculated results show that higher residual stress is distributed in and surround the weld zone. Its peak value is very close to the yield strength of base metal. Besides, a large deformation appears in the middle and rear part of the weldment.
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| 关 键 词： | Hybrid welding Residual stress Welding distortion Aluminum alloy T-joint Numerical simulation |
Numerical Analysis of Welding Residual Stress and Distortion in Laser+GMAW Hybrid Welding of Aluminum Alloy T-Joint |
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| Guoxiang XU,Chuansong WU,Xuezhou MA,and Xuyou WANG. Numerical Analysis of Welding Residual Stress and Distortion in Laser+GMAW Hybrid Welding of Aluminum Alloy T-Joint[J]. Acta Metallurgica Sinica(English Letters), 2013, 0(3): 352-360 |
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| Authors: | Guoxiang XU Chuansong WU Xuezhou MA and Xuyou WANG |
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| Affiliation: | 1) Key Laboratory of Advanced Welding Technology of Jiangsu Province, Jiangsu Univeristy of Science and Technology, Zhenjiang 212003, China 2) Institute of Advanced Welding Technology, Shandong University, Jinan 250061, China 3) Harbin Welding Institute, China Academy of Machinery Science & Technology, Harbin 150080, China |
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