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双丝脉冲MIG焊的双脉冲焊接方法

吴开源, 何祖伟, 梁焯永, 黄玺

吴开源, 何祖伟, 梁焯永, 黄玺. 双丝脉冲MIG焊的双脉冲焊接方法[J]. 焊接学报, 2017, 38(5): 53-57. DOI: 10.12073/j.hjxb.20170512
引用本文: 吴开源, 何祖伟, 梁焯永, 黄玺. 双丝脉冲MIG焊的双脉冲焊接方法[J]. 焊接学报, 2017, 38(5): 53-57. DOI: 10.12073/j.hjxb.20170512
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WU Kaiyuan, HE Zuwei, LIANG Zhuoyong, HUANG Xi. Double pulse welding method for twin-wire pulsed MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 53-57. DOI: 10.12073/j.hjxb.20170512
Citation: WU Kaiyuan, HE Zuwei, LIANG Zhuoyong, HUANG Xi. Double pulse welding method for twin-wire pulsed MIG welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 53-57. DOI: 10.12073/j.hjxb.20170512
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双丝脉冲MIG焊的双脉冲焊接方法

  • 华南理工大学 机械与汽车工程学院, 广州 510640;华南理工大学 广东省特种焊接技术与装备工程技术研究中心, 广州 510640

基金项目: 国家自然科学基金资助项目（51205136）；教育部高等学校博士学科点专项科研基金资助项目（20100172120003）；广东省中国科学院全面战略合作专项资金竞争性分配资助项目（2013B091500082）；中央高校基本科研业务费专项资金重点资助项目（2015ZZ084）

Double pulse welding method for twin-wire pulsed MIG welding

  • School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China;Engineering Research Center for Special Welding Technology and Equipment of Guangdong Province, South China University of Technology, Guangdong 510460, China

摘要

    摘要
  • 摘要: 为优化双丝脉冲MIG焊的焊缝成形质量，提出双丝脉冲MIG焊的双脉冲焊接方法，构建基于DSP的双丝脉冲MIG焊的双脉冲数字化交替相位协同控制系统，对双丝脉冲MIG焊的单脉冲和双脉冲焊接进行平板堆焊试验.结果表明，双丝脉冲MIG焊双脉冲焊接系统实现了稳定的双脉冲焊接过程，焊缝成形良好.对单脉冲和双脉冲焊接所得焊缝的横截面宏观金相对比分析结果表明，双脉冲对焊接熔池有很强的搅拌作用，双脉冲焊接所得焊缝晶粒比单脉冲焊缝晶粒更小，说明双脉冲具有细化晶粒的效果，证明在双丝脉冲MIG焊中应用双脉冲有一定的优化作用.
    Abstract: To improve the forming quality of twin-wire pulsed MIG welding, double pulse welding method for twin-wire pulsed MIG welding was proposed. A DSP based double pulse digital anti-phase synergic control system was constructed, with which surfacing welding experiments of single pulse and double pulse twin-wire pulsed MIG welding were conducted. Experimental results indicated that the process of double pulse welding was stably achieved on the constructed twin-wire pulse MIG welding system, and the weld seam formation was decent. By using metallographic analysis of the weld seams of single and double pulse test, it could be concluded that double pulse features a great stirring effect on the welding pool, and that as pillar dendrite crystal vanished, the crystal grain size of welding seam of double pulsed welding was smaller than that of single pulsed welding, demonstrating that the application of double pulse to twin-wire pulsed MIG welding brought about notable optimization.
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    • 参考文献(12)
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  • 收稿日期:  2015-03-08

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