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.
汪洪峰, 左敦稳, 戴晟, 潘玲. 7022铝合金FSJ拼连板材残余应力和变形分析[J]. 材料工程, 2014, 0(7): 79-84.
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.
 KOSKA A, COELHO R S, SANTOS J D, et al. Microstructure of friction stir welding of aluminium alloy to magnesium alloy[J]. Scripta Materialia, 2009, 60: 953-956.
 汪洪峰, 左敦稳, 邵定林, 等. 工艺参数对搅拌摩擦焊7022铝合金残余应力及耐磨耐蚀性能的影响[J]. 航空材料学报, 2011, 31(1): 31-37.WANG H F, ZUO D W, SHAO D L, et al. Effect of process parameters on the residual stress and wear and corrosion resistance of 7022 aluminium alloy by FSW[J]. Journal of Aeronautical Materials, 2011, 31(1): 31-37.
 MISHRA R S, MA Z Y. Friction stir welding and processing[J]. Materials Science and Engineering Review, 2005, 50(1-2): 1-78.
 GUERRA M, SCHMIDT C, MCCLURE J C, et al. Flow patterns during friction stir welding[J]. Materials Characterization, 2003, 49: 95-101.
 LIECHTY B C, WEBB B W. Modeling the frictional boundary condition in friction stir welding[J]. International Journal of Machine Tools & Manufacture, 2008, 48: 1474-1485.
 汪洪峰, 左敦稳, 王珉, 等. 厚板7022铝合金搅拌摩擦焊接实验研究[J]. 功能材料, 2010, 41(11):2029-2033.WANG H F, ZUO D W, WANG M, et al. Experimental study on friction stir welded on thick plate of 7022 aluminium alloy[J]. Journal of Functional Materials, 2010, 41(11):2029-2033.
 汪洪峰, 左敦稳, 王珉, 等. 7022铝合金搅拌摩擦焊焊接区的组织与性能[J]. 华南理工大学学报:自然科学版, 2010, 38(11): 12-16.WANG H F, ZUO D W, WANG M, et al. Microstructures and mechanical properties of welding zone of 7022 aluminium alloy after friction stir welding[J]. Journal of South China University of Technology:Natural Science Edition, 2010, 38(11): 12-16.
 汪洪峰, 左敦稳, 邵定林, 等. 退火温度对7022铝合金干摩擦性能的影响[J]. 深圳大学学报:理工版, 2010, 27(2): 172-177.WANG H F, ZUO D W, SHAO D L, et al. The effect of annealing temperature to the tribological property of 7022 aluminum alloy[J]. Journal of Shenzhen University Science and Engineering, 2010, 27(2): 172-177.
 汪洪峰, 左敦稳, 黄敏铭, 等. 不同温度和应变速率下的7022铝合金流动应力研究[J].南京航空航天大学学报:英文版, 2010, 27(3): 248-253.WANG H F, ZUO D W, HUANG M M, et al. High temperature rheological behavior of FSJ jointed region for 7022 aluminum alloy[J]. Transactions of Nanjing University of Aeronautics & Astronautics, 2010, 27(3): 248-253.
 ZUO D W, WANG H F, MIAO H, et al. Analysis on milling deformation of 7022 aluminum alloy blank jointed by FSJ[J]. Key Engineering Materials, 2012, 499: 27-32.