| Nd:YAG激光+CMT电弧复合热源横焊工艺参数对焊缝形貌的影响 |
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| 引用本文： | 刘西洋,王旭友,岳燕星,杜兵.Nd:YAG激光+CMT电弧复合热源横焊工艺参数对焊缝形貌的影响[J].焊接学报,2012,33(9):45-48. |
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| 作者姓名： | 刘西洋 王旭友 岳燕星 杜兵 |
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| 作者单位： | 1. 哈尔滨焊接研究所,哈尔滨,150080
2. 黑龙江省经济管理干部学院,哈尔滨,150040 |
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| 基金项目： | 国家“十一五”科技支撑计划资助项目，机械科学研究总院院技术发展基金资助项目 |
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| 摘 要： | 以304不锈钢为对象,借助横焊焊缝横断面图像来分析Nd:YAG激光+CMT电弧复合热源横焊焊缝横断面的成形特征,研究了Nd:YAG激光+CMT电弧复合热源横焊过程中焊接工艺参数对焊缝横断面形貌的影响.结果表明,在Nd:YAG激光+CMT电弧复合热源横焊中,焊接工艺参数对横焊焊缝横断面形貌的影响显著;Nd:YAG激光加入CMT电弧焊中明显提高了复合焊缝以及复合焊中CMT焊缝的熔深;采取适当的焊接工艺参数(小的光丝间距、大的激光功率、小的焊接速度、适合的离焦量以及小的或大的CMT功率)可以避免熔池机械式叠加和焊缝横断面错位现象,使得焊缝成形良好.
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| 关 键 词： | 激光焊 复合热源横焊 CMT横焊 焊缝横断面形貌 |
| 收稿时间： | 2011/7/5 0:00:00 |
Influences of Nd:YAG laser+CMT arc hybrid horizontal welding parameters on weld shape |
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| LIU Xiyang,WANG Xuyou,YUE Yanxing and DU Bing.Influences of Nd:YAG laser+CMT arc hybrid horizontal welding parameters on weld shape[J].Transactions of The China Welding Institution,2012,33(9):45-48. |
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| Authors: | LIU Xiyang WANG Xuyou YUE Yanxing and DU Bing |
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| Affiliation: | 1(1.Harbin Welding Institute,Harbin 150080,China;2.Heilongjiang College of Economic Management,Harbin 150040,China) |
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| Abstract: | The cross-section appearance characteristics of Nd:YAG laser+CMT arc hybrid horizontal welding on 304 stainless steel was evaluated by the welding weld cross-sectional images.The influence of welding parameters on weld cross-section appearance in Nd: YAG laser+CMT arc hybrid horizontal welding were studied.The results indicated that there is a great influence of weld parameters on the weld cross-section shape in YAG laser+CMT arc hybrid horizontal welding.The addition of Nd: YAG laser into CMT arc welding can significantly improve the composite weld and CMT weld penetration in hybrid welded joint.By appropriate welding parameters(the small laser-wire distance, large laser power, the low welding speed, appropriate defocusing distance and low or high CMT power), the mechanical overlay of the weld pool and dislocation of the weld cross-section can be avoided, and the good weld appearance can be obtained. |
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| Keywords: | laser welding hybrid horizontal welding CMT horizontal welding weld cross-section shape |
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