欢迎登录材料期刊网

材料期刊网

高级检索

焊接熔池形态对焊接过程和焊接质量有着重要影响,熔池的形状不仅决定了焊缝的形状,而且对焊缝的组织、力学性能和焊接质量均有重要影响.本文使用ANSYS有限元软件,采用“生死单元”技术,对X80管线钢复合型坡口多层焊的焊接过程进行二维模拟,研究各填充焊层受后一焊层热影响后,其高温停留时间和熔深随焊接热输入的影响规律.结果表明,焊层的峰值温度随着热输入的增加而增大,填充焊层焊接热输入从13.25 kJ/cm增加到14.57 kJ/cm,高温停留时间的百分比增量是热输入从12.04 kJ/cm增加到13.25 kJ/cm的一半;而各焊层熔深的增加值不变,均为0.45 mm.

参考文献

[1] 李岩,冯妍卉,张欣欣,武传松.等离子弧焊接穿孔、传热与流动的耦合过程[J].工程热物理学报,2014(05):939-943.
[2] 李岩,冯妍卉,张欣欣,武传松.等离子弧焊接熔池演变过程的模拟和验证[J].工程热物理学报,2012(08):1395-1399.
[3] 秦国梁,林尚扬.激光焊接体能量及其对激光深熔焊缝熔深的影响[J].焊接学报,2006(07):74-76.
[4] S.C. Juang;Y.S. Tarng .Process parameter selection for optimizing the weld pool geometry in the tungsten inert gas welding of stainless steel[J].Journal of Materials Processing Technology,2002(1):33-37.
[5] Dongjie Li;Shanping Lu;Wenchao Dong;Dianzhong Li;Yiyi Li .Study of the law between the weld pool shape variations with the welding parameters under two TIG processes[J].Journal of Materials Processing Technology,2012(1):128-136.
[6] Deng D;Murakawa H;Lang W .Numerical and experimental investigations on welding residual stress in multi-pass butt-welded austenitic stainless steel pipe[J].Computational Materials Science,2008(2):234-244.
[7] Deng D;Murakawa H .Finite element analysis of temperature field, microstructure and residual stress in multi-pass butt-welded 2.25Cr-1Mo steel pipes[J].Computational Materials Science,2008(4):681-695.
[8] Dean D;Hidekazu M .Prediction of welding residual stress in multi-pass butt-welded modified 9Cr-1Mo steel pipe considering phase transformation effects[J].Computational Materials Science,2006(3):209-219.
[9] 白世武,童莉葛,隋永莉,王立,康奇兰.X80管线钢复合型坡口多道焊的T8/5研究[J].金属世界,2009(z1):46-49.
[10] Zhigang Hou;Ill-Soo Kim;Yuanxun Wang;Chunzhi Li;Chuanyao Chen .Finite element analysis for the mechanical features of resistance spot welding process[J].Journal of Materials Processing Technology,2007(1/3):160-165.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%