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Microstructure and Mechanical Property of Friction Plug Welding Joint of 2014 Al Alloy
Author(s): 
Pages: 86-90
Year: Issue:  23
Journal: Aeronautical Manufacturing Technology

Keyword:  摩擦塞补焊2014铝合金接头微观组织断裂特性;
Abstract: 采用拉锻式摩擦塞补焊方法对4mm厚的2014铝合金进行了焊接,焊后对接头的微观组织和力学性能及断裂特性进行了分析.研究结果表明,摩擦塞补焊接头由焊缝区、热影响区和母材这3部分组成,焊缝由细小的等轴再结晶组织构成.力学试验表明:摩擦压力、摩擦时间、塞棒/塞孔配合角度以及工进速度均会影响接头质量,选择合适的焊接参数和接头结构,塞补焊接头的抗拉强度可以达到375MPa,约为母材强度的79%.断口形貌分析...
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