| 铝合金超声搅拌复合焊接 |
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| 引用本文： | 贺地求,李剑,李东辉,梁健章.铝合金超声搅拌复合焊接[J].焊接学报,2011,32(12):70-72,108. |
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| 作者姓名： | 贺地求 李剑 李东辉 梁健章 |
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| 作者单位： | 中南大学高性能复杂制造国家重点实验室,长沙,410083 |
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| 基金项目： | 国家"973"资助项目 |
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| 摘 要： | 铝合金的搅拌摩擦焊（FSW）通常在焊接区形成上高下低”浅漏斗状”的温度场,使焊缝厚度方向的组织性能差异较大．为了得到更好的焊接效果,文中提出超声搅拌复合焊思想,将超声波通过搅拌头导入焊缝纵深处,以改善焊缝组织性能．试验采用2．5mm厚的2219铝合金分别用上述两种方法进行焊接,并对焊缝的微观组织和力学性能进行了分析比较...
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| 关 键 词： | 超声搅拌复合焊 搅拌摩擦焊 2219铝合金 |
| 收稿时间： | 2010/9/30 0:00:00 |
Study on ultrasonic stir hybrid welding of aluminum alloy |
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| HE Diqiu,LI Jian,LI Donghui and LIANG Jianzhang.Study on ultrasonic stir hybrid welding of aluminum alloy[J].Transactions of The China Welding Institution,2011,32(12):70-72,108. |
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| Authors: | HE Diqiu LI Jian LI Donghui and LIANG Jianzhang |
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| Affiliation: | State Key Laboratory of High-performance Complex Manufacturing, Central South University, Changsha 410083, China,State Key Laboratory of High-performance Complex Manufacturing, Central South University, Changsha 410083, China,State Key Laboratory of High-performance Complex Manufacturing, Central South University, Changsha 410083, China and State Key Laboratory of High-performance Complex Manufacturing, Central South University, Changsha 410083, China |
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| Abstract: | Friction stir welding(FSW) of aluminum alloy usually results in a special " funnel shaped" temperature field, which makes obvious difference of microstructure properties in the direction of weld seams. In order to get better properties of welded joints, ultrasonic stir hybrid welding technology has been put forward in this paper, which concentrates the ultrasonic energy in deep weld seams through the stirring pin. Thickness of 2.5 mm 2219 aluminum alloy sheets has been adopted and welded by the two technologies mentioned above in this experiment, microstructure and mechanical properties of weld are analyzed and compared as well. Result shows that the weld joints of 2219 aluminum welded by the two technologies are both with good appearance and defect-free in the inner, and ultrasonic stir hybrid welding obviously has better mechanical properties. |
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| Keywords: | ultrasonic stir hybrid welding friction stir welding 2219 aluminum alloy |
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