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双丝三电弧焊中熔滴过渡及焊缝成形机理

郑佳, 李亮玉, 钟蒲, 王天琪

郑佳, 李亮玉, 钟蒲, 王天琪. 双丝三电弧焊中熔滴过渡及焊缝成形机理[J]. 焊接学报, 2019, 40(7): 31-36. DOI: 10.12073/j.hjxb.2019400177
引用本文: 郑佳, 李亮玉, 钟蒲, 王天琪. 双丝三电弧焊中熔滴过渡及焊缝成形机理[J]. 焊接学报, 2019, 40(7): 31-36. DOI: 10.12073/j.hjxb.2019400177
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ZHENG Jia, LI Liangyu, ZHONG Pu, WANG Tianqi. Droplet transfer and weld forming of Tri-arc DE welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 31-36. DOI: 10.12073/j.hjxb.2019400177
Citation: ZHENG Jia, LI Liangyu, ZHONG Pu, WANG Tianqi. Droplet transfer and weld forming of Tri-arc DE welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(7): 31-36. DOI: 10.12073/j.hjxb.2019400177
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双丝三电弧焊中熔滴过渡及焊缝成形机理

  • 天津工业大学 天津市现代机电装备技术重点实验室 天津 300387

基金项目: 国家自然科学基金资助项目（U1733125）；天津市科技计划项目（17JCZDJC38700）

Droplet transfer and weld forming of Tri-arc DE welding

  • Advanced Mechatronics Equipment Technology Tianjin Area Laboratory, Tianjin Polytechnic University, Tianjin 300387, China

摘要

    摘要
  • 摘要: 为了验证双丝三电弧焊接过程中M弧不同的电流、脉冲频率对其熔滴过渡行为的影响；试验搭建了双丝三电弧焊的焊接系统以及高速摄像与波形同步采集系统.结果表明，熔滴过渡行为变化的主要原因是在M弧作用下熔滴的受力变化.其次，熔滴过渡行为和M弧电流的变化存在着对应关系：随着M弧电流增大，熔滴过渡行为依次为焊缝成形最佳的短路过渡+射流过渡、以及成形依次变差的大滴过渡、射滴过渡、射流过渡.随着M弧脉冲频率增加，熔滴过渡行为依次为一脉多滴、一脉一滴、多脉一滴三个阶段；其中焊接成形最理想的为一脉一滴的熔滴过渡阶段.
    Abstract: The influence of different current and pulse frequency of M-arc on the droplet transfer behavior was verified using a welding system with Tri-arc DE welding and a high speed camera and waveform synchronization acquisition system. The results show that the main reason for the change of the droplet transfer behavior is the force produced by M arc. Then, there is a corresponding relationship between the droplet transfer behavior and the change of the M-arc current. With the increase of the M-arc current, the droplet transfer behavior changed from short circuit transition + jet transition to large drop transitions, jet drop transitions and jet transitions. With the increase of M-arc pulse frequency, the droplet transfer changed several drops per pulse, one drop per pulse, one drop within several pulses. The ideal weld forming pattern is the one-drop one transition phase.
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    • 参考文献(12)
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  • 收稿日期:  2018-05-15

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