Residual Stress and Deformation of Jointed 7022 Aluminum Alloy by FSJ
WANG Hong-feng1,2, ZUO Dun-wen1, DAI Sheng1, PAN Ling1
1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. School of Mechanical Electronic & Information Engineering, Huangshan University, Huangshan 245041, Anhui, China
Abstract：FSJ process of 7022 aluminum alloy was simulated by the finite element method. The residual stress and deformation laws were obtained by the simulation. The simulation results were verified correctly by the experiments. The simulation shows that the residual stress is mainly concentrated in the jointing region. The maximum tensile stress is located in the middle of jointing region. The residual compressive stress is located in the ends and other parts of jointing region. The deformation in the advancing side in the direction of vertical the jointing region is greater than that in the retreating side. The tilting in the key eye side is higher than that in the staring side. The whole deformation is such as the saddle shape.
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WANG Hong-feng, ZUO Dun-wen, DAI Sheng, PAN Ling. Residual Stress and Deformation of Jointed 7022 Aluminum Alloy by FSJ. Journal of Materials Engineering, 2014, 0(7): 79-84.
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