Advanced Search
LI Dongjie, LU Shanping, LI Dianzhong, LI Yiyi. Tracer investigation of convection in weld pool under TIG welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (8): 45-48.
Citation: LI Dongjie, LU Shanping, LI Dianzhong, LI Yiyi. Tracer investigation of convection in weld pool under TIG welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2011, (8): 45-48.

Tracer investigation of convection in weld pool under TIG welding process

More Information
  • Received Date: June 28, 2010
  • Tungsten particles were chosen as the trace-element to investigate the pattern of the Marangoni convection on the pool surfaces of conventional TIG and double shielded TIG weld and to study the mechanism of the TIG weld shape variation. Before welding, the 300-500 micron size tungsten particles were uniformly smeared on the surface of work piece which were inserted two tungsten plates at the pool bottom to separate the weld pool center area and the edge region. For conventional TIG welding process, outward Marangoni flow existed on the pool surface and the tungsten particles concentrated in the two edges at the pool bottom. For double shielded TIG process, an inward Marangoni convection on the molten pool surface and tungsten particles located on the pool center between the two tungsten plates. Tracer test proved the flow direction of the weld pool in the TIG process and verified the active element could change the direction of the Marangnon convection.
  • Related Articles

    [1]WU Kaiyuan, CHEN Ziwei, HUANG Hao, XIE Peimin. Effect of low-frequency phase on metal transfer and weld formation in double-wire double-pulse GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(7): 43-48. DOI: 10.12073/j.hjxb.20211102001
    [2]DIAO Guoning, XU Guomin, ZHANG Tianyi, WANG Zeli, LIU Liming. Effect of wire extension on stability and bead formation of triple-wire gas indirect arc welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(3): 31-36. DOI: 10.12073/j.hjxb.20210926001
    [3]JIA Yazhou, CHEN Shujun, XIAO Jun, BAI Lilai. Effect of pulse laser-arc arrangement on metal transfer and bead formation characteristics of aluminum alloy welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 17-24. DOI: 10.12073/j.hjxb.2019400306
    [4]ZHENG Jia, LI Liangyu, ZHONG Pu, WANG Tianqi. Droplet transfer and weld forming of Tri-arc DE welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 31-36. DOI: 10.12073/j.hjxb.2019400177
    [5]ZHU Xiaoyang, LI Huan, HUANG Chaoqun, YANG Ke, NI Yanbing, WANG Guodong. Analysis of droplet transfer and weld appearance in pulsed wire feeding MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(10): 59-63.
    [6]ZHANG Xiaofeng, LI Huan, YANG Lijun, GAO Ying. Effect of laser power on arc behavior and metal transfer in laser-twin-wire pulsed MIG hybrid welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(11): 23-26,62.
    [7]Niu Yong, Xue Haitao, Li Huan, Zeng Zhoumo. Effect of peak pulse voltage on metal transfer and formation of weld in double-wire pulsed MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (1): 50-54.
    [8]ZHAO Bo, FAN Chenglei, YANG Chunli, SUN Qingjie. Influence of welding parameters on bead formation in high-spinarc narrow gap MAG[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (9): 109-112.
    [9]LI Ming-li, LIU Zhan-min. Behavior of arc in Ar-He Gases tungsten arc welding with high Current[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2005, (8): 39-42.
    [10]LIU Gang, FENG Yun, LI Jun-yue, FAN Rong-huan. Arc spectrum signals of droplet spray transfer in MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (1): 40-44.
  • Cited by

    Periodical cited type(3)

    1. 赵建强,石永华,詹家通,徐涛,董士玮. 外加轴向磁场K-TIG横焊电弧形态及焊缝成形. 焊接. 2023(04): 1-6 .
    2. 刘喜旺,贾金龙,张林杰,Suck Joo Na. Nb521高温合金光纤激光焊及接头组织性能研究. 应用激光. 2023(07): 49-57 .
    3. 何建萍,陶旭阳,吉永丰. 超薄板脉冲微束等离子弧焊温度场动态分布特征及成形控制. 焊接学报. 2021(09): 67-73+101 . 本站查看

    Other cited types(6)

Catalog

    Article views (311) PDF downloads (129) Cited by(9)

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return