| 镁合金激光胶接焊胶层作用分析 |
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| 引用本文： | 任大鑫,刘黎明. 镁合金激光胶接焊胶层作用分析[J]. 机械工程学报, 2009, 45(8): 266-269. DOI: 10.3901/JME.2009.08.266 |
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| 作者姓名： | 任大鑫 刘黎明 |
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| 作者单位： | 大连理工大学材料科学与工程学院,大连,116024;大连理工大学材料科学与工程学院,大连,116024 |
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| 基金项目： | 十一五国家科技支撑计划资助项目 |
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| 摘 要： | 通过镁合金激光胶接焊和激光焊接的对比分析,揭示同种金属激光胶接焊时胶层作用,并为异种金属激光胶接焊研究提供理论依据。与激光焊接进行比较,对焊接过程进行焊接光谱采集并分析,发现激光胶接焊光致等离子体电子密度增加,碰撞加剧,逸出焊缝的镁粒子数量增加,胶层的存在增加了试件对激光的吸收率;焊缝成形试验发现胶层的存在可以起到增加焊接熔深的作用;剪切试验结果表明胶层对焊接接头性能不会产生负面影响。
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| 关 键 词： | 胶层 激光胶接焊 光谱 焊缝成形 剪切力 |
Analysis of the Adhesive Layer of Laser Weld Bonding Joints in Magnesium Alloy |
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| REN Daxin,LIU Liming. Analysis of the Adhesive Layer of Laser Weld Bonding Joints in Magnesium Alloy[J]. Chinese Journal of Mechanical Engineering, 2009, 45(8): 266-269. DOI: 10.3901/JME.2009.08.266 |
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| Authors: | REN Daxin LIU Liming |
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| Affiliation: | School of Materials Science and Engineering, Dalian University of Technology |
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| Abstract: | Through comparison analysis of the laser weld bonding(LWB) and laser welding of magnesium alloy, the adhesive layer's action and its effect on LWB of similar metals or dissimilar metals are discussed.By collecting and analyzing the welding spectra, it is found that, compared to laser welding, the density of the photo-induced magnesium plasma is increased, particles collision aggravated and there are more magnesium particles getting out of the weld seam in laser weld bonding.The adhesive layer also has the e... |
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| Keywords: | Adhesive layer Laser weld bonding Spectra Weld molding Shearing force |
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