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LOU Liyan, LI Huan, SHEN Junqi, GU Wen. A filling strategy of J-groove weld with automatic pulsed TIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 51-55.
Citation: LOU Liyan, LI Huan, SHEN Junqi, GU Wen. A filling strategy of J-groove weld with automatic pulsed TIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(1): 51-55.
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A filling strategy of J-groove weld with automatic pulsed TIG welding

  • 1.

    school of Mechanical Engineering Tianjin University, Tianjin 300222, China

  • 2.

    School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

  • 3.

    China First Heavy Industries, Dalian 116113, China

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  • Received Date: November 23, 2014
    Graphical Abstract
    • Abstract
  • Nuclear vessel head is constituted by intersection structure of sphere and a given number of tubes. The welding groove is called J groove, its welding seam is irregular space curve, and its position is inside the vessel head. The welding efficiency and quality is not good with common manual welding method for J-groove. This paper proposed a multi-pass filling strategy of J-groove automatic welding process for one type nuclear power pressure vessel head. Through the analysis of welding structure, the region division of welding process and filling strategy is determined. And the selection rule of welding process parameters is put forward to control the welding appearance. The tests indicate that suitable welding appearance can be obtained through the proposed strategy.
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    • References (7)
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