摘要: |
采用双轴肩搅拌摩擦焊和单轴肩搅拌摩擦焊工艺方法对10mm厚2219铝合金搅拌摩擦焊焊缝进行补焊研究。焊后对接头宏观形貌、显微组织、显微硬度及力学性能的进行分析研究。结果表明:两种焊接工艺方法对补焊后接头显微硬度的分布特征及断裂位置会产生影响,对接头抗拉强度和延伸率的影响较小,证明了两种工艺方法对原始焊缝进行补焊的可行性。 |
关键词: 补焊;双轴肩搅拌摩擦焊;单轴肩搅拌摩擦焊;工艺研究;可行性 |
基金项目:预研共用技术课题资助项目(414****0128) |
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Research on Repair Welding Technology of 2219 Aluminum ofFriction Stir Welding |
Yan Xu Fang Dongqing Du Han Zhong Guojiang Song Chengwen Ma Yi
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Capital Aerospace Machinery Co., Ltd., Beijing 100076
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Abstract: |
The repair welding of 10mm thick 2219 aluminum alloy use self-reacting friction stir welding and single shoulder friction stir welding was studied. After welding,the macroscopic morphology, microstructure, micro-hardness, and mechanical properties of the joint were analyzed. From the results, the two welding process methods have an impact on the distribution of the micro-hardness and the fracture location of the repaired joint, and have a relatively small impact on the tensile strength and elongation of the repaired joint, proving the feasibility of the two process methods for repairing the original welding. |
Key words: repair welding;self-reacting friction stir welding;single shoulder friction stir welding;process research;feasibility |