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| 工艺参数对Al-Mg异种金属搅拌摩擦焊-钎焊复合焊接接头力学性能的影响 |
| Effect of Welding Parameters on the Mechanical Properties of Friction Stir Welding-brazing Hybrid Joints Between Al and Mg Dissimilar Alloys |
| Received:June 25, 2019 Revised:July 10, 2019 |
| DOI：10.3969/j.issn.1674-6457.2019.04.020 |
| 中文关键词: 工艺参数 Al-Mg异种金属 搅拌摩擦焊-钎焊复合焊接 力学性能 |
| 英文关键词: welding parameters Al/Mg dissimilar metals friction stir welding-brazing mechanical properties |
| 基金项目:国家自然科学基金（51265024） |
| Author Name | Affiliation | | XIE Ji-lin | 1. School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China | | YIN Li-meng | 2. School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China | | ZHANG Ti-ming | 1. School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China | | FENG Xiao-song | 3. Shanghai Spaceflight Manufacture (Group) Co., Ltd., Shanghai 200245, China | | CHEN Yu-hua | 1. School of Aerospace Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China |
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| 中文摘要: |
| 目的 研究工艺参数对Al-Mg异种金属搅拌摩擦焊-钎焊复合焊接接头力学性能的影响。方法 采用搅拌摩擦焊-钎焊方法，在不同焊接工艺参数下焊接2A12-T4铝合金和AZ31镁合金。结果 当焊接速度为23.5 mm/min、旋转速度为375 r/min时，焊接接头的抗拉剪力达到最大，为5.5 kN，比搅拌摩擦焊接头的最大抗拉剪力的5.0 kN提高了10%。结论 搅拌摩擦焊-钎焊复合焊接的工艺参数会显著影响铝/镁异种金属接头力学性能，通过优化工艺参数能够获得力学性能优异的铝/镁异种金属焊接接头。复合焊接接头的抗拉剪力随着焊接速度的增大呈现先增大后减小的趋势。 |
| 英文摘要: |
| The work aims to study the effect of process parameters on mechanical properties of FSW brazing composite welded joints on Al-Mg dissimilar metal. 2A12-T4 aluminum alloy and AZ31 magnesium alloy were welded by FSW brazing method under different welding process parameters. When the welding speed was 23.5 mm/min and the rotation speed was 375 r/min, the maximum tensile shear force of the welded joint reached 5.5 kN, which was 10% higher than the maximum tensile shear force of the friction stir welded joint, 5.0 kN. The technological parameters of FSW/brazing composite welding can significantly affect the mechanical properties of aluminum/magnesium dissimilar metal joints, and the aluminum/magnesium dissimilar metal joints with excellent mechanical properties can be obtained by optimizing the technological parameters. The tensile shear of composite welded joint increases first and then decreases with the increase of welding speed. |
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