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焊丝自转式MAG焊焊接过程与接头组织分析

曾红, 纪昂, 于江, 吴辉, 张洪涛

曾红, 纪昂, 于江, 吴辉, 张洪涛. 焊丝自转式MAG焊焊接过程与接头组织分析[J]. 焊接学报, 2017, 38(4): 91-94. DOI: 10.12073/j.hjxb.20170421
引用本文: 曾红, 纪昂, 于江, 吴辉, 张洪涛. 焊丝自转式MAG焊焊接过程与接头组织分析[J]. 焊接学报, 2017, 38(4): 91-94. DOI: 10.12073/j.hjxb.20170421
shu
ZENG Hong, JI Ang, YU Jiang, WU Hui, ZHANG Hongtao. Study on welding process and joint microstructure of rotated wire metal active gas welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 91-94. DOI: 10.12073/j.hjxb.20170421
Citation: ZENG Hong, JI Ang, YU Jiang, WU Hui, ZHANG Hongtao. Study on welding process and joint microstructure of rotated wire metal active gas welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(4): 91-94. DOI: 10.12073/j.hjxb.20170421
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焊丝自转式MAG焊焊接过程与接头组织分析

  • 1.

    哈尔滨理工大学 荣成学院机械工程系, 荣成 264300

  • 2.

    哈尔滨工业大学(威海) 材料科学与工程学院, 威海 264209;徐工集团 江苏徐州工程机械研究院, 徐州 221004

  • 3.

    哈尔滨工业大学(威海) 材料科学与工程学院, 威海 264209

基金项目: 泰山学者工程（tsqn20161062）

Study on welding process and joint microstructure of rotated wire metal active gas welding

  • 1.

    Department of Mechanical Engineering, Harbin University of Science and Technology Rongcheng Campus, Rongcheng 264300, China

  • 2.

    School of Materials Science and Engineering, Harbin institute of Technology at Weihai, Weihai 264209, China;XCMG Research Institute, Xuzhou Construction Machinery Group, Xuzhou 221004, China

  • 3.

    School of Materials Science and Engineering, Harbin institute of Technology at Weihai, Weihai 264209, China

摘要

    摘要
  • 摘要: 提出了通过焊丝自转搅动熔池进而细化焊缝组织的MAG焊接新方法.试验中采集了焊接过程电信号和熔池形态，分析了焊丝转速对低碳钢表面堆焊接头组织特征的影响.结果表明，焊丝自转可以增加短路过渡的频率，使焊接过程更稳定，熔滴过渡近似熵的计算也证明焊接过程的稳定性可以明显地提高.利用钨颗粒示踪技术可以发现焊丝自转能够显著增加熔池金属流动性，熔池宽度随着焊丝自转速度的改变先变大后变小，焊缝金相组织分析也证明熔池流动性的改变可以有效细化焊缝金属晶粒，减少联生结晶的生成.
    Abstract: A new rotated wire metal active gas welding process was put forward to improve molten metal flow and to refine weld microstructure. welding current, arc voltages and weld pool behaviors ware collected to analyze the effect of rotation velocity change on the joint microstructure when build-up welding on mild steel. The results showed that the rotation of the welding wire could add transition frequency of short circuiting transfer and improve the stability of the welding process. The calculation of the droplet transfer approximate entropy also proved the stability of the welding process was improved. The flow of molten pool was added by the additional motion of the welding wire and this can be seen from the tungsten particle tracer method results. The width of the bead firstly increased and then decreased. The joint microstructure could be refined obviously and the epitaxial growth of weld metal was restrained.
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    • 参考文献(9)
  • [1] 章梓雄, 董曾南. 粘性流体力学[M]. 北京: 清华大学出版社有限公司, 1998.
    [2] 汪殿龙, 张志洋, 梁志敏, 等. 交流CMT动态电弧特征及熔滴过渡行为分析[J]. 焊接学报, 2014, 35(3): 6-10. Wang Dianlong, Zhang Zhiyang, Liang Zhimin, et al. Analysis on AC CMT dynamic arc characteristics and droplet transition behavior[J]. Transactions of the China Welding Institution, 2014, 35(3): 6-10.
    [3] 张洪涛, 冯吉才, 何 鹏, 等. 镀锌层对铝/镀锌钢板CMT熔-钎焊电弧加热行为的影响[J]. 焊接学报, 2009, 30(8): 37-40. Zhang Hongtao, Feng Jicai, He Peng, et al. Effect of galvanized layer on arc behavior of aluminum/galvanized steel CMT melt-brazing[J]. Transactions of the China Welding Institution, 2009, 30(8): 37-40.
    [4] Pickin C G, Williams S W, Lunt M. Characterisation of the cold metal transfer (CMT) process and its application for low dilution cladding[J]. Journal of Materials Processing Technology, 2011, 211(3): 496-502.
    [5] Pincus S M. Approximate entropy as a measure of system complexity[J]. Proceedings of the National Academy of Sciences, 1991, 88(6): 2297-2301.
    [6] 张瑞华, 尹 燕. 活性剂钨极惰性气体保护电弧焊接熔池行为的观察[J]. 机械工程学报, 2009, 45(3): 115-118. Zhang Ruihua, Yin Yan. Observation of pool behavior with activating flux TIG welding[J]. Chinese Journal of Mechanical Engineering, 2009, 45(3): 115-118.
    [7] 路 浩, 邢敬伟, 邢立伟, 等. 活性MAG焊电弧特征及熔池流动分析[J]. 焊接学报, 2014, 35(10): 41-44, 115. Lu Hao, Xing Jingwei, Xing Liwei, et al. Analysis of arc characteristic and pool flow in active MAG welding[J]. Transactions of the China Welding Institution, 2014, 35(10): 41-44, 115.
    [8] 闫志鸿, 张广军, 邱美珍, 等. 脉冲熔化极气体保护焊熔池图像的检测与处理[J]. 焊接学报, 2005, 26(2): 37-40. Yan Zhihong, Zhang Guangjun, Qiu Meizhen, et al. Detection and processing of pulsed MIG welding pool image[J]. Transactions of the China Welding Institution, 2005, 26(2): 37-40.
    [9] 张文钺. 焊接冶金学(基本原理)[M]. 北京: 机械工业出版社, 1999.
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出版历程
  • 收稿日期:  2015-01-24

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