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MA Xiaoli, HUA Xueming, LIN Hang, WU Yixiong, Yasuhiko ONIKI, Shigeru KAMIFUJI, SHI Jiangang. Effects of welding conditions on weld geometry parameters for triple-electrode high-speed CO_2 fillet welding on double sides[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (10): 93-96.
Citation: MA Xiaoli, HUA Xueming, LIN Hang, WU Yixiong, Yasuhiko ONIKI, Shigeru KAMIFUJI, SHI Jiangang. Effects of welding conditions on weld geometry parameters for triple-electrode high-speed CO_2 fillet welding on double sides[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2009, (10): 93-96.
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Effects of welding conditions on weld geometry parameters for triple-electrode high-speed CO_2 fillet welding on double sides

  • 1.

    Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiaotong University, Shanghai 200240, China

  • 2.

    Tsuneishi Holdings Corporation, Hiroshima 7200393, Japan

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  • Received Date: July 16, 2008
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  • In order to improve the welding efficiency, tripleelectrode high-speed CO2 fillet welding process was adopted based on the twin-electrode CO2 welding, and the effect of welding conditions on weld geometry parameters was analyzed.The results show that weld geometry parameters are more or less the same by DCEP/DCEN/DCEP and DCEN/DCEP/DCEN polarities.Leg length, penetration and weld width increase with the speed slowdown and welding combination parameters increase, but leg length has a maximum limit.Middle-electrode offset plays an important role in welding geometry parameters, and the leg length is the smallest when the electrodes shift from one side to the other side is ±30mm in this experiments.In addition, the leg length and weld width gradually decrease with increasing the distance of wire to wire.
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