| 无针搅拌摩擦点焊技术 |
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| 引用本文： | 褚 强,李文亚,杨夏炜,王卫兵.无针搅拌摩擦点焊技术[J].焊管,2017,40(11):12-17,21. |
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| 作者姓名： | 褚 强 李文亚 杨夏炜 王卫兵 |
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| 作者单位： | 1. 西北工业大学 材料学院， 西安 710072;2. 中国搅拌摩擦焊中心， 北京 100024 |
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| 摘 要： | 为了消除搅拌摩擦点焊固有的“匙孔”缺陷，采用无针搅拌摩擦点焊（probeless friction stir spot welding，P-FSSW）工艺，在不同的焊接参数下对新型铝锂合金2198-T8进行了点焊试验，并分析了点焊接头的金相组织及其力学性能。结果表明，无针搅拌摩擦点焊工艺可以有效消除“匙孔”缺陷，但受工艺限制，无针搅拌摩擦点焊焊接工艺较适用于低熔点合金及薄板焊接。
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| 关 键 词： | 焊接 搅拌摩擦点焊 微观组织 力学性能 |
Probeless Friction Stir Spot Welding Technology |
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| CHU Qiang,LI Wenya,YANG Xiawei,WANG Weibing.Probeless Friction Stir Spot Welding Technology[J].Welded Pipe and Tube,2017,40(11):12-17,21. |
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| Authors: | CHU Qiang LI Wenya YANG Xiawei WANG Weibing |
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| Affiliation: | 1. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China; 2. China FSW Center, Beijing 100024, China |
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| Abstract: | In order to eliminate the keyhole which appeared normally in conventional friction stir spot welding (FSSW) joints, 2198-T8 Al-Li alloy had been taken spot welding by probeless friction stir spot welding (P-FSSW), and metallographic structure and mechanical property of welded joint were analyzed. The results showed that P-FSSW process could effectively eliminated the keyhole defect, but limited to the process, P-FSSW process applied to low-melting-point alloy and sheet welding. |
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| Keywords: | welding friction stir spot welding microstructure mechanical property |
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