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| 7055铝合金搅拌摩擦焊工艺 | |
| 引用本文： | 汤化伟,张聃,封小松,徐奎,陆剑东. 7055铝合金搅拌摩擦焊工艺[J]. 电焊机, 2017, 47(9). DOI: 10.7512/j.issn.1001-2303.2017.09.10 |
| 作者姓名： | 汤化伟 张聃 封小松 徐奎 陆剑东 |
| 作者单位： | 上海航天设备制造总厂,上海,200245 |
| 基金项目： | 上海市优秀技术带头人计划项目 |
| 摘 要： | 利用正交试验法研究搅拌摩擦焊工艺参数对4 mm厚7055-T6铝合金对接接头力学性能和显微组织的影响。结果表明:焊接速度对接头抗拉强度影响最大,旋转速度和压入量依次减小;最优参数焊接的试样的抗拉强度为475.5 MPa,接头强度系数0.788;焊缝的显微硬度低于母材,呈"W型"分布;在正弯角约75.4°和背弯角约62.1°时出现开裂。 |
| 关 键 词： | 正交试验 7055-T6铝合金 工艺参数 力学性能 |
Friction stir welding process parameters of 7055 aluminum alloy |
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| TANG Huawei,ZHANG Dan,FENG Xiaosong,XU Kui,LU Jiandong. Friction stir welding process parameters of 7055 aluminum alloy[J]. Electric Welding Machine, 2017, 47(9). DOI: 10.7512/j.issn.1001-2303.2017.09.10 | |
| Authors: | TANG Huawei ZHANG Dan FENG Xiaosong XU Kui LU Jiandong |
| Abstract: | The effects of friction stir welding process parameters on the mechanical properties and microstructure of 4 mm thick 7055-T6 aluminum alloy were studied by adopting orthogonal test method.The results show that the effect of welding speed on the tensile strength is maximal,then the rotational speed and heel plunge depth.By using the optimal parameters,the tensile strength of the sample is up to 475.5 MPa,and the joint coefficient of strength is up to 0.788.The microhardness of weld,which is "W" distribution,is lower than the base material.At about 75.4° face bending test and 62.1° back bending test,the cracking is found in the joint. |
| Keywords: | orthogonal test 7055-T6 aluminum alloy process parameters mechanical properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |