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磁场作用下镁合金A-TIG焊工艺参数的优化

张桂清, 任英磊, 刘凯, 苏允海

张桂清, 任英磊, 刘凯, 苏允海. 磁场作用下镁合金A-TIG焊工艺参数的优化[J]. 焊接学报, 2016, 37(8): 105-108.
引用本文: 张桂清, 任英磊, 刘凯, 苏允海. 磁场作用下镁合金A-TIG焊工艺参数的优化[J]. 焊接学报, 2016, 37(8): 105-108.
shu
ZHANG Guiqing, REN Yinglei, LIU Kai, SU Yunhai. Optimization of magnesium alloy TIG welding parameters under magnetic field[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(8): 105-108.
Citation: ZHANG Guiqing, REN Yinglei, LIU Kai, SU Yunhai. Optimization of magnesium alloy TIG welding parameters under magnetic field[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(8): 105-108.
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磁场作用下镁合金A-TIG焊工艺参数的优化

  • 1.

    沈阳工业大学 材料科学与工程学院, 沈阳 110870

  • 2.

    沈阳鼓风机股份集团有限公司, 沈阳 110869

基金项目: 辽宁省博士启动基金资助项目（20131079）

Optimization of magnesium alloy TIG welding parameters under magnetic field

  • 1.

    School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China

  • 2.

    Shenyang Blower Works Group Corporation, shenyang 110869, China

摘要

    摘要
  • 摘要: 选用NiCl2作为活性剂，在对AZ91镁合金板进行A-TIG焊的过程中引入直流纵向磁场，通过调节磁场电流，研究不同活性剂涂敷量下，焊缝熔深、熔宽、硬度及显微组织的变化规律，以确定最佳的匹配参数.结果表明，在所进行的试验范围内，当磁场电流Ic=1.5 A，活性剂涂敷量为5 mg/cm2时，焊缝获得最大熔深5.0 mm，且此时的力学性能最佳，显微硬度达到73.8 HV.磁场与活性剂的双重作用，使得焊缝熔深增加的同时力学性能显著提高.
    Abstract: NiCl2 was selected as activating flux, and the longitudinal magnetic field was used in A-TIG welding process of AZ91 magnesium alloy plate. By adjusting the magnetic field current and the coating amount of activating flux their effects on the weld penetration depth, width, hardness and microstructure were studied to determine the best matching parameters. The results show that, in experiments, at the magnetic field current of Ic=1.5 A and the activating flux coating amount of 5 mg/cm2, the deepest weld penetration and the highest microhardness are obtained, which can reach up to 5.00 mm and 73.8 HV, respectively. The combined action of the magnetic field and the activating flux not only increases the weld penetration depth, but also improves the mechanical properties.
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    • 参考文献(8)
  • [1] 刘静安. 镁合金加工技术发展趋势与开发应用前景[J]. 轻合金加工技术, 2001, 29(11):1-7. Liu Jingan. Developing trends and application of magnesium alloy fabricationtechnology[J]. Light Alloy Fabrication Tech-nology, 2001, 29(11):1-7.
    [2] Nakata, K. Weld ability of magnesium alloys[J]. Journal of Light Metal Welding and Construction, 2001, 39(12):26-35.
    [3] Lucas W. Activating flux improving the performance of the TIG process[J]. Welding and Metal Fabrication, 2000, 68(2):6-10.
    [4] 张兆栋, 刘黎明, 王来. 镁合金活性TIG焊焊接接头组织特征分析[J]. 焊接学报, 2004, 25(4):55-58. Zhang Zhaodong, Liu Liming, Wang Lai.Microstructure feature analysis of activating TIG welded joint[J]. Transactions of the China Welding Institution, 2004, 25(4):55-58.
    [5] 刘黎明, 张兆栋, 沈勇, 等. 活性剂对镁合金TIG焊接熔深的影响[J]. 金属学报, 2006, 42(4):399-404. Liu Liming, Zhang Zhaodong, Shen Yong, et al. Effect of acti-vating fluxes on TIG welding penetration of magnesium alloy[J]. Acta Metallurgical Sonic, 2006, 42(4):399-404.
    [6] 苏允海, 林金梁, 蒋焕文, 等. 磁场下镁合金A-TIG接头成形性及显微组织分析[J]. 焊接学报, 2013, 34(11):13-16. Su Yunhai, Lin Jinliang, Jiang Huanwen, et al. Formability and microstructure of magnesium alloy welded by A-TIG under magnetic field[J]. Transactions of the China Welding Institution, 2013, 34(11):13-16.
    [7] 苏允海, 蒋焕文, 吴德广, 等. 镁合金磁控TIG焊工艺参数的优化设计[J]. 焊接学报, 2012, 33(12):84-88. Su Yunhai, Jiang Huanwen, Wu Deguang, et al. Optimum design of magnesium alloy welding parameters with GTAW under magnetic field[J]. Transactions of the China Welding Institution, 2012, 33(12):84-88.
    [8] 苏允海, 蒋焕文, 秦昊, 等. 磁场作用下镁合金焊接接头力学性能的变化[J]. 焊接学报, 2013, 34(4):85-88. Su Yunhai, Jiang Huanwen, Qin Hao, et al. Forming character-rustics, microstructure and properties of magnesium alloy during TIG welding under magnetic field[J]. Transactions of the China Welding Institution, 2013, 34(4):85-88.
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出版历程
  • 收稿日期:  2015-08-25

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