| 补焊对5A02铝合金焊接接头力学性能的影响 |
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| 引用本文： | 张举麟,童明波,张华松,李波涛.补焊对5A02铝合金焊接接头力学性能的影响[J].科学技术与工程,2017,17(3). |
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| 作者姓名： | 张举麟 童明波 张华松 李波涛 |
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| 作者单位： | 南京航空航天大学 飞行器先进设计技术国防重点学科实验室,南京航空航天大学 飞行器先进设计技术国防重点学科实验室,中国电子科技集团公司第五十五研究所,南京航空航天大学 飞行器先进设计技术国防重点学科实验室 |
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| 基金项目： | 国家自然科学基金(11302105)；航空基金(2014ZF52074) |
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| 摘 要： | 本文以某型飞机5A06铝合金焊接模拟件的原始焊接接头和一次补焊接头为研究对象,通过拉伸试验、疲劳试验,研究了补焊对铝合金焊接接头力学性能的影响。结果表明：补焊对接头拉伸性能没有明显的影响,但是会明显降低焊接接头的中值疲劳强度。
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| 关 键 词： | 5A02铝合金 补焊 拉伸强度 疲劳性能 |
| 收稿时间： | 2016/7/17 0:00:00 |
| 修稿时间： | 2016/8/18 0:00:00 |
Effects of repairing welding on the mechanical properties of 5A02 aluminum alloy welded joints |
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| ZHANG Ju-lin,TONG Ming-bo,ZHANG Hua-song and LI Bo-tao.Effects of repairing welding on the mechanical properties of 5A02 aluminum alloy welded joints[J].Science Technology and Engineering,2017,17(3). |
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| Authors: | ZHANG Ju-lin TONG Ming-bo ZHANG Hua-song and LI Bo-tao |
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| Institution: | Nanjing University of Aeronautics and Astronautics,Ministerial Key Discipline Laboratory of Advanced Design Technology of Aircraft, Nanjing University of Aeronautics and Astronautics,CETC,Ministerial Key Discipline Laboratory of Advanced Design Technology of Aircraft, Nanjing University of Aeronautics and Astronautics |
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| Abstract: | The welded joint and repairing welded joint of 5A02 aluminum alloy used in certain aircraft are analyzed in this article. The effects of repairing welding on the mechanical properties of welded joints were studied by tensile test and fatigue test, respectively. The results show that the repairing welding does not have an obvious effect on tensile strength of welded joints. However, it may degrade the median fatigue strength of the welded joints significantly. |
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| Keywords: | 5A02 aluminum alloy repairing welding tensile strength fatigue performance |
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