J4 ›› 2011, Vol. 24 ›› Issue (1): 16-21.

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A survey of keyhole plasma arc welding

 LUO Fei, JIA Chuan-Bao, XUE Liang-Chang, CHENG Shuang-Qiu, ZHANG Lin-Lin, WANG Fang   

  1. Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology, Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao 266001, China
  • Published:2011-02-20 Online:2011-02-20

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Abstract:

         This paper surveys the characteristics, classification and the parameters matching for the technology of keyhole plasma arc welding. Keyhole plasma arc welding can cause a special keyhole, with which welding speed, workpiece thickness and welding efficiency will be all increased significantly. It can be generalized to constant, pulsed, variable polarity and special plasma arc welding, so it can satisfy special requirements of many different industries. This paper is quite significant to guide welding practice and increase productivity and the quality of welding joints.

Key words: plasma arc welding, high energy density welding, keyhole

CLC Number: 

  • TG456.2

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