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WU Laijun, LIU Yibo, CHENG Wenqian, SUN Qingjie, WANG Jianfeng. Ultrasound-assisted underwater wet welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(12): 33-36.
Citation: WU Laijun, LIU Yibo, CHENG Wenqian, SUN Qingjie, WANG Jianfeng. Ultrasound-assisted underwater wet welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(12): 33-36.
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Ultrasound-assisted underwater wet welding process

  • 1.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Welhai, Weihai 264209, China

  • 2.

    Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Welhai, Weihai 264209, China

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  • Received Date: November 05, 2014
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    • Abstract
  • Underwater wet welding usually accompanied poor arc stability, arc blowout, nonuniform weld appearance and other problems. Ultrasound-assisted underwater wet welding method was developed to solve these problems. Its principle is to use the ultrasound combined with common underwater wet welding to improve welding arc stability, weld appearance and the weld quality. Bead-on-plate welding experiments were carried out with the ultrasound-assisted underwater wet welding equipment. The results showed that ultrasonic can improve the weld appearance and stability of welding process. The arc blowout rate is obviously decreased, the weld penetration is increased, and the reinforcement is decreased. The micro-hardness of the central weld is also decreased.
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    • References (10)
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