| 3A21铝合金激光焊与激光-氩弧焊复合焊微观组织及性能比较研究 |
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| 引用本文： | 卢艳,宋伦斌,唐霞,邓世平. 3A21铝合金激光焊与激光-氩弧焊复合焊微观组织及性能比较研究[J]. 制造技术与机床, 2012, 0(3): 109-112 |
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| 作者姓名： | 卢艳 宋伦斌 唐霞 邓世平 |
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| 作者单位： | 重庆大学光电工程学院;重庆广播电视大学机电工程学院;重庆大学材料科学与工程学院 |
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| 摘 要： | 采用激光焊接与激光-氩弧焊复合焊接2种方式对厚度为2mm的3A21铝合金板材进行对接焊,研究2种焊接方式下焊接接头微观组织、缺陷分布及硬度分布的不同。实验结果显示激光-氩弧复合焊接接头相比激光焊的接头显微组织更细密,且气孔数量明显减少。激光焊接接头的平均显微硬度与复合焊接头平均显微硬度相差不大,分别为52HV左右及51.3HV左右,均明显高于基体平均显微硬度值43HV。
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| 关 键 词： | 3A21铝合金 激光焊 激光 -氩弧焊复合焊 |
Microstructure and mechanical properties of laser welding and laser-argon arc welding of 3A21 aluminum alloy |
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| LU Yan,SONG Lunbin,TANG Xia,DENG Shiping. Microstructure and mechanical properties of laser welding and laser-argon arc welding of 3A21 aluminum alloy[J]. Manufacturing Technology & Machine Tool, 2012, 0(3): 109-112 |
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| Authors: | LU Yan SONG Lunbin TANG Xia DENG Shiping |
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| Affiliation: | ②(①College of Opto-electronic Engineering,Chongqing University,Chongqing 400044,CHN;②College of Mechanical & Electrical Engineering,Chongqing Radio & TV University,Chongqing 400052,CHN;③College of Materials Science and Engineering,Chongqing University,Chongqing 400044,CHN) |
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| Abstract: | In this experiment,the effect of different bonding technology on welding point microstructure,flaw distribution and hardness distribution of 2 mm 3A21 aluminum alloy which were welded by laser welding and laser-argon arc welding was studied.The results showed that laser-argon arc welding microstructure was better than laser welding microstructure,and the air hole volume of laser-argon arc welding was obviously reduced.The micro-hardness of laser welding point was higher than laser-argon arc welding point,and the values were 52 HV and 51.3 HV respectively,they were all higher than the micro-hardness of matrix hardness which was 43 HV. |
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| Keywords: | 3A21 Aluminum Alloy Laser Welding Laser-argon Arc Welding |
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