| 8090 Al-Li合金激光焊及焊后的组织与性能 |
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| 引用本文： | 王蕾,石崇刚.8090 Al-Li合金激光焊及焊后的组织与性能[J].中国激光,1999,26(10):951-954. |
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| 作者姓名： | 王蕾 石崇刚 |
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| 作者单位： | 南京航空航天大学材料科学与工程系,南京,210016 |
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| 摘 要： | 研究了8090Al－Li合金的YAG激光焊，通过金相观察、显微硬度测定以及电子探针微区成分分析，结果表明：在一定的焊接工艺参数下，能得到优良的焊接接头。单面焊能焊厚度≤0．7mm，双面焊能焊厚度≤1．4mm，焊缝为细晶组织，焊缝窄，热影响区小，焊后应即时去应力处理。
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| 关 键 词： | Al－Li合金 激光焊 焊接接头 |
| 收稿时间： | 1998/4/24 |
Welding of Joints of 8090 Al-Li Alloy by Laser Welding and Their Structure and Properties |
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| Wang Lei,Shi Chonggang.Welding of Joints of 8090 Al-Li Alloy by Laser Welding and Their Structure and Properties[J].Chinese Journal of Lasers,1999,26(10):951-954. |
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| Authors: | Wang Lei Shi Chonggang |
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| Abstract: | Welded joints of Al-Li alloy welded by YAG laser are investigated through metalloscopy, micro-hardness and electron probe micro-analysis. The results showed that a suitable welded joint can be obtained under proper welding parameters. The thoroughly penetrated thickness does not exceed 0. 7 mm for the single impulse welding and 1. 4 mm for the double impulse welding. The we1d is narrow and has a fine grain structure while the wideness of the heat affected zone is small. Moreover, a stress releasing treatment must be done as soon as possible after welding. |
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| Keywords: | Al-Li alloy laser welding weld joint |
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