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Study on Arrangement of TIG Weld Seams of 6061-T6 Aluminum Alloy
Technical Paper
2023-01-0939
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Welding deformation of aluminum alloy is an urgent problem to be solved, it affects the performance and service life of welding products. In this research, in order to compute welding deformation and residual stress, a finite element model of 6061-T6 aluminum alloy was established. The efficiency and the accuracy of the welding residual stress calculation and the welding deformation were significantly improved. By comparing the temperature field and the displacement field of simulation and experiment, the finite element model was validated. Through finite element analysis, Heat input and welding times have important effects on welding deformation and residual stress was found. The welding deformation law and the residual stress distribution law were proposed, after cooling of the welding seams, the plates collapsed to the other side of the heat source along the vertical direction, the welding deformation tendency was heightened by double-sided welding. The relationship between welding deformation and residual stress was found, when one increases, the other decreases. Large deformations are caused by the large heat input of the plate, and the large residual stress is caused by the increase in the number of arc starting and arc endings. According to the proposed welding deformation law and residual stress distribution law, a welding seam arrangement method for double-sided segmented welding was proposed, which could reduce welding deformation by 42%, compared with the commonly used welding seam arrangement. The work of this paper can provide experience for the design of arrangement of aluminum alloy weld seams, so as to reduce the welding deformation and improve the qualified rate of products.
Citation
Li, R. and Liu, Y., "Study on Arrangement of TIG Weld Seams of 6061-T6 Aluminum Alloy," SAE Technical Paper 2023-01-0939, 2023, https://doi.org/10.4271/2023-01-0939.Also In
References
- Demir , H. and Gunduz , S. The Effects of Aging on Machinability of 6061 Aluminium Alloy Materials & Design 30 5 2009 1480 1483 10.1016/j.matdes.2008.08.007
- Khan , Ibrahim Welding Science and Technology 2007 97881224262128122426212
- Nikseresht , Z. , Karimzadeh , F. , Golozar , M.A. , and Heidarbeigy , M. Effect of Heat Treatment on Microstructure and Corrosion Behavior of Al6061 Alloy Weldment Materials & Design 31 5 2010 2643 2648 10.1016/j.matdes.2009.12.001
- Hamsi , A. , Sitorus , T.B. , Sinaga , R.K. , and Publishing , I.O.P. Effect of Preheat and Post Heat on Mechanical Properties of 6061 Aluminium Tungsten Inert Gas Welded Joints Paper presented at the 2nd Talenta Conference on Engineering, Science and Technology (TALENTA-CEST) Medan, INDONESIA Oct 17 2019 10.1088/1757-899x/801/1/012086
- Qingfeng , Y.U. , Quanke , F.E.N.G. , and Shiyuan , W.A.N.G. Research on Structual Strength of 6061 Aluminium Alloy Welded by Tig HOT WORKING TECHNOLOGY 02 2006 4 5 10.3969/j.issn.1001-3814.2006.07.002
- Temmar , M. , Hadji , M. , and Sahraoui , T. Effect of Post-Weld Aging Treatment on Mechanical Properties of Tungsten Inert Gas Welded Low Thickness 7075 Aluminium Alloy Joints Materials & Design 32 6 2011 3532 3536 10.1016/j.matdes.2011.02.011
- Peng , D. , Shen , J. , Tang , Q. , Wu , C.P. et al. Effects of Aging Treatment and Heat Input on the Microstructures and Mechanical Properties of Tig-Welded 6061-T6 Alloy Joints International Journal of Minerals Metallurgy and Materials 20 3 2013 259 265 10.1007/s12613-013-0721-8
- Gang , L. , Haiying , Z. , Yang , J. , and Liao , J. Study on Tensile/Shear Properties of 5a06 Aluminium Alloy Tig Welding Lap Joints ENGINEERING & TEST 61 02 2021 27 29+32 10.3969/j.issn.1674-3407.2021.02.009
- Rojas , H. , Molina , A. , Valdez , S. , Campillo , B. et al. The Impact of Heat Input on the Microstructures, Fatigue Behaviors, and Stress Lives of Tig-Welded 6061-T6 Alloy Joints Materials Research Express 7 12 2020 10 10.1088/2053-1591/abd136
- Preston , R.V. , Shercliff , H.R. , Withers , P.J. , and Smith , S.D. Finite Element Modelling of Tungsten Inert Gas Welding of Aluminium Alloy 2024 Science and technology of Welding and Joining 8 1 2003 10 18 10.1179/136217103225008937
- Ericsson , M. and Sandström , R. Influence of Welding Speed on the Fatigue of Friction Stir Welds, and Comparison with Mig and Tig International journal of fatigue 25 12 2003 1379 1387 10.1016/S0142-1123(03)00059-8
- Jun , X.U. , Meng , X. , Guoqing , H.E. , and Gangyan , L.I. Numerical Simulation and Welding Sequence Optimization of Friction Stir Welding for Power Battery Enclosure's Bottom Plate Journal of Xi’an Jiaotong University 55 07 2021 88 96 10.7652/xjtuxb202107010
- Jun , X.U. , Feng , D.E.N.G. , Tian , S.U. , and Gangyan , L.I. Research on Numerical Simulation and Deformation Control of Melt Inert Gas Welding in Power Battery Enclosure Acta Scientiarum Naturalium Universitatis Sunyatseni 60 05 2021 50 58 10.13471/j.cnki.acta.snus.2020.03.19.2020b024
- Zhang , Y. , Huang , J. , Cheng , Z. , Zheng , Y. et al. Study on Mig-Tig Double-Sided Arc Welding-Brazing of Aluminum and Stainless Steel Materials Letters 172 2016 146 148 10.1016/j.matlet.2016.02.146
- Ayarkwa , K.F. , Williams , S.W. , and Ding , J. Assessing the Effect of Tig Alternating Current Time Cycle on Aluminium Wire+Arc Additive Manufacture Additive Manufacturing 18 2017 186 193 10.1016/j.addma.2017.10.005
- Huijin , L.I. , Daicheng , Q.I.N. , and Dingguo , Z.H.O.U. Analysis and Control of Welding Deformation of Big Scale Aluminium Alloy Component Based on Numerical Simulation Hot Working Technology 47 23 2018 215 217 10.14158/j. cnki. 1001-3814. 2018. 23. 054
- Guoping , T.I.A.N. , Song , Z.H.A.N.G. , Zhifang , L.I.A.N.G. , Yanfang , G.A.O. et al. Deformation Control of Fsw and Mig Welding of Aluminum Alloy Shell Electric Welding Machine 52 07 2022 100 104 10.7512/j.issn.1001-2303.2022.07.14
- Chaowen , Li , Wang , Yong , Liying , Li , and Tao , Han Three-Dimensional Dynamic Fem Simulation of Temperature Disturbution of T-Joint TRANSACTIONS OF THE CHINA WELDING INSTITUTION 32 08 33 36 2011 CNKI:SUN:HJXB.0.2011-08-010
- Zhu , X.K. and Chao , Y.J. Effects of Temperature-Dependent Material Properties on Welding Simulation Computers & Structures 80 11 2002 967 976 10.1016/s0045-7949(02)00040-8
- Qianji , W. , Xu , C. , Li , J. , Hong , X.U. et al. Tensile Properties Characteriaztion of Micro-Zone of 6061-T6 Aluminium Alloy Mig Welded Joint and Finite Element Simulation of Tensile Properties of Joint MATERIALS FOR MECHANICAL ENGINEERING 45 03 2021 76 82 10.11973/jxgccl202103015
- Jieqiong , D. , Qiaoying , H. , Wentao , J. , Shuqi , S. et al. Research on Stress and Deformation of Aluminium Alloy Lap Joint by Mig of Railway Vehicles Electric Welding Machine 48 05 2018 47 53 10.7512/j.issn.1001-2303.2018.05.10
- Zhang , D.K. , Zhao , Y. , Dong , M.Y. , Wang , G.Q. et al. Effects of Weld Penetration on Tensile Properties of 2219 Aluminum Alloy Tig-Welded Joints Transactions of Nonferrous Metals Society of China 29 6 2019 1161 1168 10.1016/s1003-6326(19)65024-7
- Kabiri , M. Measurement of Residual Stresses by the Hole-Drilling Method: Influences of Transverse Sensitivity of the Gages and Relieved-Strain Coefficients Experimental Mechanics 24 3 1984 252 256 10.1007/bf02323174
- Mills , K.C. Asm - Recommended Values of Thermophysical Properties for Selected Commercial Alloys 2002 10.1533/9781845690144.143