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WU Bintao, MIAO Yugang, HAN Duanfeng, ZHOU Yue. Analysis of single supply AC twin-electrode GTAW process mechanism of aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(2): 55-58.
Citation: WU Bintao, MIAO Yugang, HAN Duanfeng, ZHOU Yue. Analysis of single supply AC twin-electrode GTAW process mechanism of aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(2): 55-58.
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Analysis of single supply AC twin-electrode GTAW process mechanism of aluminum alloy

  • 1.

    State Key Laboratory of Science and Technology on Underwater Vehicle, Harbin Engineering University, Harbin 150001, China

  • 2.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

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  • Received Date: October 08, 2014
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    • Abstract
  • Single supply AC twin-electrode GTAW experiments of 6061 aluminum alloy were carried out. The microstructures of aluminum alloy joint were analyzed by optical microscopy, while the arc static characteristics and current change in welding process were investigated by CCD camera and current detection system. The results showed that acceptable joints without obvious defects are obtained with double tungsten electrodes under high current condition, but the tandem tungsten electrodes are better than parallel arranging of in welding process. The current detection results showed that the total current is assigned randomly by two GTAW torchs, and current density of single tungsten electrode presents unimodal distribution along welding direction, while double tungsten electrodes has the current density with double peak. In arc region, current density of coupling arc is less than that of single arc. Double tungsten electrodes not only expand the root of the coupling arc, but also increase the heating area of molten pool.
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    • References (7)
  • 张文毓.铝合金焊接技术研究进展[J].轻金属, 2010(4):53-56. Zhang Wenyu. Aluminium alloy welding engineering research progress[J]. Light Metals, 2010(4):53-56.
    Uematsu Y, Tokaji K, Tozaki Y, et al. Effect of refilling probe hole no tensile failure and fatigue behavior of friction stir welded joints in Al-Mg-Si alloy[J]. International Journal of Fatigue, 2008, 30(10):1956-1966.
    吕世雄,敬小军,黄永宪,等.钛/铝异种合金电弧熔钎焊接头界面特征及力学性能[J].焊接学报, 2012, 33(6):23-27. Lü Shixiong, Jing Xiaojun, Huang Yongxian, et al. Interfacial characteristic and property of Ti/Al dissimilar alloys joint with arc welding-brazing[J]. Transactions of the China Welding Institution, 2012, 33(6):23-27.
    申志康,杨新岐,张照华,等.铝合金回填式搅拌摩擦点焊组织及力学性能分析[J].焊接学报, 2013, 34(6):73-76. Shen Zhikang, Yang Xinqi, Zhang Zhaohua, et al. Analysis of microstructure and mechanical properties of refill friction stir spot welded aluminum alloy[J]. Transactions of the China Welding Institution, 2013, 34(6):73-76.
    苗玉刚,陈彦宾,李俐群,等.铝合金激光立焊特性分析[J].焊接学报, 2007, 28(10):57-60. Miao Yugang, Chen Yanbin, Li Liqun, et al. Analysis of characteristic of vertical position laser welding for aluminum alloys[J]. Transactions of the China Welding Institution, 2007, 28(10):57-60.
    Leng X S, Zhang G J, Wu L. The characteristic of twin-electrode TIG coupling arc pressure[J]. Journal of Physics D:Applied Physics, 2006, 39(6):1120-1126.
    王树保.双钨极氩弧焊物理特性及工艺研究[D].哈尔滨:哈尔滨工业大学, 2006.
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