| 铝合金搅拌摩擦焊接头隧道型缺陷研究 |
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| 引用本文： | 黄华 董仕节 刘静 吴咏. 铝合金搅拌摩擦焊接头隧道型缺陷研究[J]. 中国材料科技与设备, 2006, 3(6): 87-88 |
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| 作者姓名： | 黄华 董仕节 刘静 吴咏 |
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| 作者单位： | [1]湖北汽车工业学院材料工程系,湖北十堰442002 [2]武汉科技大学材料与冶金学院,湖北武汉430081 |
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| 基金项目： | 湖北省教育厅创新团队资助项目（鄂教科[2003]7号） |
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| 摘 要： | 焊接热输入不足导致铝合金搅拌摩擦焊接头中常出现隧道型缺陷，本文通过产热分析发现：选择与被焊材料摩擦系数斗较大的材料作为搅拌头制造材料；在圆柱体搅拌头的指头上制造螺纹提高焊接产热；提高旋转速度或者降低焊接速度来提高焊接线能量；减小搅拌指头半径r1是改善和消除隧道型缺陷的4种有效途径。
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| 关 键 词： | 铝合金 搅拌摩擦焊 隧道型缺陷 |
Study on Tunnel Type Deficiency of Al Alloy Friction Stir Welding Joint |
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| HUANG Hua , DONG Shi -jie, LIU Jing , WU Yong. Study on Tunnel Type Deficiency of Al Alloy Friction Stir Welding Joint[J]. Chinese Materials Science Technology & Equipment, 2006, 3(6): 87-88 |
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| Authors: | HUANG Hua DONG Shi -jie LIU Jing WU Yong |
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| Affiliation: | 1. Department of Material Engineering, Hubei Automotive Industries Institute, Hubei, Shiyan, 442002, China; 2. College of Material and Metallurgy, Wuhan University of Science and Technology, Hubei, Wuhan, 430081, China |
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| Abstract: | Heat input shortage will result in Al alloy friction stir welding joint appear tunnel type deficiency. The producing heat analyse showed that as friction coefficient increased, whorls were manufactured on stir pin, rotate speed increased or welding speed decreased and radius of stir pin decreased, the tunnel type deficiency would be improved or eliminated. |
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| Keywords: | Al alloy Friction stir welding Tunnel type deficiency |
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