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Volume 29 Issue 1
Sep.  2013
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Citation:
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Laser conducting-limited welding of thin-wall HR-2 steel parts

  • 1.

    Institute of Mechanical Manufacturing Technology, CAEP, Mianyang 621900, China

  • Received Date: 2004-01-12
    Accepted Date: 2004-02-27
  • Laser conducting-limited welding of thin-wall HR-2 hydrogen-resistant stainless steel (HRSS) parts is discussed,processing parameters is studied,fluctuation of penetration and its influencing factors are analyzed,and measures to control fluctuation of penetration are presented.It is found that the maximal depth of fusion can be exceeded,and the fluctuation of penetration can be lessened,by taking measures such as low welding speed and preheating,when the HR-2 HRSS is welded by CO2 laser beam conduction-limited welding.With appropriate processing parameters and measures during laser conducting-limited welding of thin-wall HR-2 HRSS parts,depth of fusion can exceed 0.25mm,its fluctuation can be controlled in scope of ±10%,and good quality of weld can be achieved.Besides,centering and tack welding by laser beam should be avoided as centering point and tack-welding point can influence weld quality largely.
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  • [1] 王家金.激光加工技术[M].北京:中国计量出版社,1992.335～337,348～349.
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    NAKAMURA S, SAKURAI M, KAMIMUKI K et al. Detection technique for transition between deep penetration mode and shallow penetration mode in CO2 laser welding of metals [J]. J Phys,2000,D33(22):2941～2948.
    [3] 熊建钢,刘建华,陈祖涛et al.高功率CO2激光焊接及其应用现状[J].中国机械工程,1996,7(2):55～57.
    [4] 闫毓禾,钟敏霖.高功率激光加工及其应用[M].天津:天津科学技术出版社,1994.205～208.
    [5] 关振中.激光加工工艺手册[M].北京:中国计量出版社,1998.109～113.
    [6] 梁新德,陈必清,杨治国.机械制造工程学[M].成都:成都科技大学出版社,1998.281～284.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Laser conducting-limited welding of thin-wall HR-2 steel parts

  • 1. Institute of Mechanical Manufacturing Technology, CAEP, Mianyang 621900, China
  • Received Date: 2004-01-12
  • Accepted Date: 2004-02-27
  • Available Online: 2005-01-25

Abstract: Laser conducting-limited welding of thin-wall HR-2 hydrogen-resistant stainless steel (HRSS) parts is discussed,processing parameters is studied,fluctuation of penetration and its influencing factors are analyzed,and measures to control fluctuation of penetration are presented.It is found that the maximal depth of fusion can be exceeded,and the fluctuation of penetration can be lessened,by taking measures such as low welding speed and preheating,when the HR-2 HRSS is welded by CO2 laser beam conduction-limited welding.With appropriate processing parameters and measures during laser conducting-limited welding of thin-wall HR-2 HRSS parts,depth of fusion can exceed 0.25mm,its fluctuation can be controlled in scope of ±10%,and good quality of weld can be achieved.Besides,centering and tack welding by laser beam should be avoided as centering point and tack-welding point can influence weld quality largely.

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