LI Shudong, ZHAO Yunfeng, DING Jieqiong, ZHAN Xiaohong, CHEN Lili. Finite element analysis and experimental verification of L-joint for aluminum alloy[J]. WELDING & JOINING, 2018, (8): 28-34.
Citation: LI Shudong, ZHAO Yunfeng, DING Jieqiong, ZHAN Xiaohong, CHEN Lili. Finite element analysis and experimental verification of L-joint for aluminum alloy[J]. WELDING & JOINING, 2018, (8): 28-34.

Finite element analysis and experimental verification of L-joint for aluminum alloy

More Information
  • Received Date: March 08, 2018
  • The aluminum alloy plates of 12 mm in thickness in railway vehicles welded by multilayer multi-pass MIG welding was studied by using the elastic-plastic finite element method combined with experimental measurement. By utilizing a more accurate boundary condition simplified method,a unilateral V groove multilayer multi-pass welding finite element model of L-joint was set up to analyze the welding temperature field,residual stress distribution and deformation trend. The results show that the heat accumulating effect of multi-pass welding,welding residual stress and distortion can be accurately simulated by the finite element method. Simultaneously,multilayer MIG welding of L-joint was carried out and the residual stress was measured by the blind-hole method. Simulating results are in good agreements with the actual welding results,which verifies the reasonability of the finite element model.
  • [1]
    陈庆雷.SUS301L奥氏体不锈钢激光焊接头组织与力学性能的研究[D].长春:吉林大学硕士学士论文,2012.
    [2]
    Ji S D,Meng X C,Liu J G,et al.Formation and mechanical properties of stationary shoulder friction stir welded 6005A- T6 aluminum alloy[J].Materials & Design,2014,62(10):113-117.
    [3]
    杨尚磊,林庆琳,张峰,等.Al-0.6Mg-0.6Si铝合金MIG焊接接头显微组织与微区成分研究[J].上海工程技术大学学报,2011,25(4):300-303.
    [4]
    方洪渊,董俊慧,王文先,等.焊接结构学[M].北京:机械工业出版社,2008.
    [5]
    杨建国,雷靖,周号,等.关于焊接结构有限元分析的思考[J].焊接,2014(12):10-19.
    [6]
    程记胜,甄爱国,刘伟,等.单边V形坡口多层多道焊有限元模拟[J].煤矿机械,2016,37(12):150-152.
    [7]
    王立楠,范伟光,舒凤远,等.铝合金多层多道窄间隙TIG焊接头应力场研究[J].焊接,2016(9):35-39.
    [8]
    陈文汨,张利,金立业,等.焊接残余应力的分布和焊后热处理的应力松弛作用[J].金属热处理,2002,27(2):30-32.
    [9]
    杨建国,周号,雷靖,等.焊接应力与变形数值模拟领域的若干关键问题[J].焊接,2014(3):8-17.
    [10]
    王岩.Al-Mg-Si 6082合金MIG焊焊接应力与变形的数值模拟分析[D].长沙:中南林业科技大学硕士学位论文,2012.
    [11]
    王娜.中厚板焊接残余应力测试的盲孔法研究[D].辽宁大连:大连理工大学硕士学位论文,2007.

Catalog

    Article views (220) PDF downloads (15) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return