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| NUMERICAL ANALYSIS ON THE RESIDUAL DISTORTION OF Al ALLOY SHEET AFTER FRICTION STIR WELDING |
| YAN Dongyang 1; SHI Qingyu 1; WU Aiping 1; Juergen Silvanus 2; LIU Yuan 1; ZHANG Zenglei 1 |
1. Department of Mechanical Engineering; Tsinghua University; Beijing 100084
2. European Aeronautic Defence and Space Company Innovation Works; Munich 81663; Germany |
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Cite this article:
YAN Dongyang SHI Qingyu WU Aiping Juergen Silvanus LIU Yuan ZHANG Zenglei. NUMERICAL ANALYSIS ON THE RESIDUAL DISTORTION OF Al ALLOY SHEET AFTER FRICTION STIR WELDING. Acta Metall Sin, 2009, 45(2): 183-188.
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Abstract Although the residual distortion of 6056 Al alloy sheet after friction stir welding (FSW) is smaller than that after fusion welding, it is still a significant defect for the assembly and application of welded structure. In order to investigate and predict the residual distortion of Al alloy sheet after FSW, a 3D thermo–mechanical model was established based on experimental conditions to simulate the FSW process. In the model, heat input was computed based on the torque data measured during experiment, and heat transfer between welded sheet and fixtures was simplified in the way of convection, and the properties of 6056 Al alloy were considered as temperature function, and tool loads were taken into account during the mechanical analysis. The simulation results show that the distribution of longitudinal residual stress along the width of sheet is asymmetrical, and the residual distortion corresponds well with experimental results both in distortion pattern and deformation values on the whole sheet.
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Received: 30 July 2008
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| Fund: Supported by National Natural Science Foundation of China (No.50875146) and High Technology Research and Development Program of China (No.2006AA04Z139) |
| [1] Thomas W M, Nicholas E D, Needham J C, Murch M G, Templesmith P, Dawes C J. Gr Br Pat Appl No. 9 125978.8, 1991
[2] Mishra R S, Ma Z Y. Mater Sci Eng, 2005; R50: 1
[3] Tang W, Guo X, McClure J C, Murr L E. J Mater Process Manuf Sci, 1998; 7(2): 163
[4] Staron P, Kocak M. In: David S A, Debroy T, Lippold J C, Smartt H B, Vitek J M eds., Proc 6th Int Conf on Trends in Welding Research, Pine Mountain: ASM International, 2003: 216
[5] Song M, Kovacevic R. J Eng Manuf, 2003; 217(1): 73
[6] Colegrove P A, Shercliff H R. Sci Technol Weld Join, 2003; 8: 360
[7] Chao Y J, Qi X, Tang W. Trans ASME, 2003; 125: 138
[8] Shi Q Y, Dickerson T L, Shercliff H R. Proc 4th Int Symp on Friction Stir Welding, TWI Center, Park City, USA, 2003 (CD–ROM)
[9] Li T, Shi Q Y, Li H K. Sci Technol Weld Join, 2007; 12: 664
[10] Price D A, Williams S W, Wescott A, Harrison C J C, Rezai A, Steuwer A, Peel M, Staron P, Kocak M. Sci Technol Weld Join, 2007; 12: 620
[11] Shi Q Y, Silvanus J, Liu Y, Yan D Y, Li H K. Sci Technol Weld Join, 2008; 13: 472
[12] Chai P, Luan G H, Guo D L, Li J, Trans Chin Weld Inst, 2005; 26(11): 79
(柴 鹏, 栾国红, 郭德伦, 李菊. 焊接学报, 2005; 26(11): 79)
[13] Grimvall G. Thermophysical Properties of Materials: Non Metallic Solids. New York: Elsevier, 1999: 243
[14] Parrott J E, Stuckes A D. Thermal Conductivity of Solids. London: Pion, 1975: 156
[15] Preston R V. PhD Thesis, Cambridge University, 2000
[16] Zhu X K, Chao Y J. J Mater Process Technol, 2004; 146: 263
[17] Li H K. Postdoctoral Report, Tsinghua University, Beijing, 2007
[18] Wu C S. Numerical Analysis for Heat Transfer in Welding Process. Harbin: Harbin Institute of Technology Press, 1990: 95
武传松. 焊接热过程数值分析. 哈尔滨: 哈尔滨工业出版社, 1990: 95)
[19] Shi Q Y, Dickerson T L, Shercliff H R. In: David S A, DebRoy T, Lippold J C, Smartt H B, Vitek J M eds., Proc 6th Int Conf on Trends in Welding Research, Pine Mountain: ASM International, 2003: 247
[20] Dickerson T L, Shi Q Y, Shercliff H R. Proc 4th Int Symp On Friction Stir Welding, TWI Center, Park City, USA, 2003 (CD–ROM)
[21] Vuyst T, Dealvise L D. Proc 5th Int Symp on Friction Stir Welding, TWI Center, Park City, USA, 2004 (CD–ROM)
[22] Buffa G, Hua J, Shivpuri R, Fratini L. Mater Sci Eng,2006; A419: 389 |
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