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304L不锈钢激光-脉冲MAG复合焊电弧特性及焊缝成形分析

杨涛, 何双, 陈勇, 田洪雷, 陈辉

杨涛, 何双, 陈勇, 田洪雷, 陈辉. 304L不锈钢激光-脉冲MAG复合焊电弧特性及焊缝成形分析[J]. 焊接学报, 2016, 37(7): 65-69.
引用本文: 杨涛, 何双, 陈勇, 田洪雷, 陈辉. 304L不锈钢激光-脉冲MAG复合焊电弧特性及焊缝成形分析[J]. 焊接学报, 2016, 37(7): 65-69.
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YANG Tao, HE Shuang, CHEN Yong, TIAN Honglei, CHEN Hui. Arc characteristics and weld formation during laser-pulsed MAG hybrid arc welding of 304L stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(7): 65-69.
Citation: YANG Tao, HE Shuang, CHEN Yong, TIAN Honglei, CHEN Hui. Arc characteristics and weld formation during laser-pulsed MAG hybrid arc welding of 304L stainless steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(7): 65-69.
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304L不锈钢激光-脉冲MAG复合焊电弧特性及焊缝成形分析

  • 1.

    西南交通大学 材料科学与工程学院, 成都 610031

  • 2.

    中车青岛四方机车车辆股份有限公司, 青岛 266111

基金项目: 国家科技支撑计划（2015BAG12B01-13）

Arc characteristics and weld formation during laser-pulsed MAG hybrid arc welding of 304L stainless steel

  • 1.

    School of Materials Science and Engineering, Southwest JiaoTong University, Chendu 610031, China

  • 2.

    CRRC Qingdao Sifang Co., Ltd, Qingdao 266111, China

摘要

    摘要
  • 摘要: 针对SUS304L不锈钢激光-脉冲MAG复合焊接过程激光与脉冲MAG电弧的过程参数匹配及优化控制问题，系统研究了过程参数对电弧特性及焊缝成形尺寸的影响，获得了复合焊接过程的电弧特性及成形控制策略.结果表明，激光的介入会使复合焊接过程稳定性加强，当脉冲MAG电弧处在电流基值时，较大的激光功率会吸引MAG电弧而造成基值电压的波动，并且大功率激光会对脉冲MAG电弧具备一定的压缩作用，但在峰值阶段影响幅度较小.焊缝形貌的几何尺寸与过程参数的耦合效应有着直接的关系，过程参数的匹配优化能够有效控制焊缝成形尺寸.
    Abstract: The influence of process parameters on arc characteristics and weld formation was investigated during laser-pulsed MAG hybrid arc welding of SUS304L stainless steel, and the control strategy of arc characteristics and weld forming was obtained. The results show that the stability of hybrid welding process was enhanced by introducing laser beam. But a high-power laser beam made the base value of arc voltage fluctuate when the current of pulsed MAG arc was at the base value. And the high-power laser beam had compression effect on the pulsed MAG arc, but this effect was weakened at peak value of MAG current. The coupling effect of process parameters and weld geometry had direct impact on the weld size which could be controlled by optimizing the process parameters.
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    • 参考文献(9)
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    [9] 刘黎明,王红阳,宋刚.能源节约型激光诱导电弧复合焊技术及应用[J].焊接学报,2015,36(11):9-12.Liu Liming,Wang Hongyang,Song Gang.Energy-saving mode laser induced arc hybrid welding technology and application[J].Transactions of the China Welding Institute,2015,36(11):9-12.
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  • 收稿日期:  2016-02-27

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