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脉冲激光与脉冲GMAW复合焊接的动态交互行为

Dynamic Interaction Behavior of Pulse GMAW+Pulse Laser Hybrid Welding

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摘要

将连续激光、脉冲激光分别与脉冲GMAW(熔化极气体保护焊)进行复合,研究了不同复合焊接模式下激光离子体与电弧等离子体的动态交互行为。研究结果表明:与连续激光+脉冲GMAW复合焊接模式相比, 脉冲激光+脉冲GMAW复合焊接模式可以在激光平均功率较小的情况下获得更大的熔深; 在复合过程中, 当激光脉冲峰值出现的时刻错开电流峰值的上升期时, 这一瞬态时刻等离子体的急剧膨胀现象可以得到抑制, 激光能量的传输可以得到改善。

Abstract

Continue laser or pulse laser is combined with the pulse gas metal arc welding (GMAW) to study the dynamic interaction behavior of laser plasma and arc plasma at different hybrid welding modes. The study results show that the pulse laser+pulse GMAW hybrid welding mode can achieve a higher penetration than continuum laser+pulse GMAW hybrid welding under a low average power condition. It is found that if the peak time of the laser pulse has a phase shift with the arc current pulse rise period, the phenomenon of rapid expansion of the plasma at this transient moment can be suppressed, thus improve the transmission of laser energy.

Newport宣传-MKS新实验室计划
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中图分类号:O436

DOI:10.3788/cjl201946.0402002

所属栏目:激光制造

基金项目:国家自然科学基金(51505271)、上海工程技术研究中心(18DZ2253400)

收稿日期:2018-10-30

修改稿日期:2018-12-11

网络出版日期:2019-01-04

作者单位    点击查看

张旺:上海电机学院材料学院, 上海 201306
孟威:安徽工业大学材料科学与工程学院, 安徽 马鞍山 243032
郭彦兵:上海电机学院材料学院, 上海 201306
陆斌锋:上海电机学院材料学院, 上海 201306
华学明:上海交通大学上海市激光制造与材料改性重点实验室, 上海 200240
李芳:上海交通大学上海市激光制造与材料改性重点实验室, 上海 200240

联系人作者:张旺(zhangwang@shdju.edu.cn)

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引用该论文

Zhang Wang,Meng Wei,Guo Yanbing,Lu Binfeng,Hua Xueming,Li Fang. Dynamic Interaction Behavior of Pulse GMAW+Pulse Laser Hybrid Welding[J]. Chinese Journal of Lasers, 2019, 46(4): 0402002

张旺,孟威,郭彦兵,陆斌锋,华学明,李芳. 脉冲激光与脉冲GMAW复合焊接的动态交互行为[J]. 中国激光, 2019, 46(4): 0402002

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