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Invar36合金激光焊接Ansys仿真

[作者:张坤[来源:互联网]| 打印 | 关闭 ]
  Invar36合金的熔点为1430℃,因此温度高于1430℃的区域均为良好的焊接区域,由图2和图3看出,激光实现了良好的invar36合金的焊接。 
  图5为焊缝上选取的5个点的时间历程曲线,即这5个点随焊接时间进行的温度变化。由图5容易看出,激光焊接是一个温度急剧上升和急剧降低的过程,这种温度的急剧变化可以使焊接区域金属晶粒细化,提高焊接区域金属性能。 
  5 结论 
  对激光焊接invar36合金进行了ansys仿真,仿真结果验证了激光焊接过程激光焊接具备高能量密度,高温度梯度,低热影响区和低变形,激光焊接温度的突变提高了材料性能。 
  【参考文献】 
  [1] Salyo-ku, Invar alloys Department of Materials Science and Engineering. Kyoto 606-01, Japan:340~347 
  [2] 关振中. 激光加工手册[M].北京,中国计量出版社 1998. 109~132 
  [3] James D.Van de Ven and Arthur G.Erdman. Laser transmission welding of thermoplastics-part I:temperature and pressure modeling. Mechanical Engineering Department, University of Minnesota. October 2007, Vol.129: 849~858 
  [4] James D.Van de Ven and Arthur G.Erdman. Laser transmission welding of thermoplastics-part II:Experimental Model Validation. Mechanical Engineering Department, University of Minnesota. October 2007, Vol.129: 859~867 
  [5] K.S.Suresh, M.Roopa Rani, K.Prakasan, R.Rudramoorthy. Modeling of temperature distribution in ultrasonic welding of thermoplastics for various joint designs. Journal of materials processing technology 186(2007):138~146

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