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脉冲电流波形对Tandem双丝MIG焊力学性能影响

薛家祥, 林方略, 金礼, 胡昱

薛家祥, 林方略, 金礼, 胡昱. 脉冲电流波形对Tandem双丝MIG焊力学性能影响[J]. 焊接学报, 2019, 40(12): 6-10. DOI: 10.12073/j.hjxb.2019400305
引用本文: 薛家祥, 林方略, 金礼, 胡昱. 脉冲电流波形对Tandem双丝MIG焊力学性能影响[J]. 焊接学报, 2019, 40(12): 6-10. DOI: 10.12073/j.hjxb.2019400305
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XUE Jiaxiang, LIN Fanglue, JIN Li, HU Yu. Influence of pulse current waveform on mechanical properties of Tandem double wire MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 6-10. DOI: 10.12073/j.hjxb.2019400305
Citation: XUE Jiaxiang, LIN Fanglue, JIN Li, HU Yu. Influence of pulse current waveform on mechanical properties of Tandem double wire MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 6-10. DOI: 10.12073/j.hjxb.2019400305
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脉冲电流波形对Tandem双丝MIG焊力学性能影响

  • 1.

    华南理工大学, 广州 510641

  • 2.

    贵州民族大学, 贵阳 550025

基金项目: 国家自然科学基金资助（51875213）；广东省省科学院2016年度引进人才专项资金项目（2016-GDASRC-0106）；福建省自然科学基金项目（2018J01503）龙岩市科技计划项目（2017LY68）；2015东莞市引进第三批创新科研团队项目（2017360004004）

Influence of pulse current waveform on mechanical properties of Tandem double wire MIG welding

  • 1.

    South China University of Technology, Guangzhou 510641, China

  • 2.

    Guizhou Minzu University, Guiyang 550025, China

摘要

    摘要
  • 摘要: 双丝脉冲MIG焊作为高效化的不锈钢焊接方法，是目前焊接行业研发的热点之一，但是如何选择和调节双丝MIG焊的电流波形参数依旧是一个难点. 为了优化不锈钢焊接的焊接方法，提高焊接效率，文中以双相不锈钢为焊接工件，通过电流波形参数对比试验，研究了双丝梯形波双脉冲焊，双丝矩形波双脉冲焊以及双丝单脉冲焊对焊接质量的影响. 结果表明，在相同热输入的条件下，双丝梯形波双脉冲焊焊接稳定性好于双丝矩形波双脉冲焊和双丝单脉冲焊，且前者的焊接成形质量更高，可看到更多的鱼鳞纹，同时使不锈钢接头的的拉伸强度和硬度以及韧性显著提高.
    Abstract: As an efficient welding method for stainless steel, double wire pulse MIG welding is one of the hot spots in welding industry. However, how to select and adjust the current waveform parameters of double wire MIG welding is still a difficulty. In order to optimize the welding method of stainless steel and improve the welding efficiency, duplex stainless steel was used as the welding workpiece. The welding quality of duplex stainless steel was studied by comparing the parameters of current waveform through the research on the double wire trapezoidal wave double pulse welding, double wire rectangular wave double pulse welding and double wire single pulse welding. The results showed that under the condition of the same line energy, the double-wire trapezoidal wave double pulse welding had better stability than the double-wire rectangular wave double-pulse welding and the double-wire single-pulse welding, and the welding quality of the former was higher, and it could be seen more fish scales, while significantly increasing the tensile strength, hardness and toughness of stainless steel joints.
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    • 参考文献(11)
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  • 收稿日期:  2019-07-06

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