Study on Mechanical Properties of Needleless Friction Stirred Spot Welding Adhesive Joint Based on Cohesion Model
- Vol. 54, Issue 5, Pages: 78-84(2024)
Published: 25 May 2024
DOI: 10.7512/j.issn.1001-2303.2024.05.11
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Published: 25 May 2024 ,
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王羽,王元伍,刘民军,等.基于内聚力模型的无针搅拌摩擦点焊-胶接混合连接接头拉剪性能研究[J].电焊机,2024,54(5):78-84.
WANG Yu, WANG Yuanwu, LIU Minjun, et al.Study on Mechanical Properties of Needleless Friction Stirred Spot Welding Adhesive Joint Based on Cohesion Model[J].Electric Welding Machine, 2024, 54(5): 78-84.
针对铝合金薄板的连接,提出了一种无针搅拌摩擦点焊-胶接混合连接工艺。基于内聚力模型,利用有限元软件ABAQUS模拟无针搅拌摩擦点焊-胶接混合接头的拉剪失效过程,研究了不同焊点排布方式及胶粘剂种类对混合接头力学性能的影响。结果表明,焊点排布方式对混合接头的拉剪载荷没有明显影响,但会影响混合接头内的裂纹扩展行为;使用柔性胶2015混合接头的拉剪峰值载荷和破坏位移均大于脆性胶AV138混合接头。该混合连接工艺为铝合金薄板提供了一种高强度、低变形的连接方案,在汽车轻量化领域具有应用前景。
A needle less stir friction spot welding adhesive hybrid connection process is proposed for the connection of aluminum alloy sheets. Based on the cohesive force model
the finite element software ABAQUS was used to simulate the tensile shear fracture process of needle free friction stir welding adhesive hybrid joints
and the effects of different solder joint arrangements and adhesive types on the mechanical properties of the hybrid joints were studied. The results show that the arrangement of solder joints has no significant effect on the tensile and shear loads of the needle free friction stir welding adhesive hybrid joint
but it can affect the crack propagation behavior inside the hybrid joint; The peak tensile shear load of the flexible adhesive 2015 hybrid joint is greater than that of the brittle adhesive AV138 hybrid joint
and the failure displacement is also greater than that of the brittle adhesive AV138 hybrid joint.
铝合金薄板无针搅拌摩擦点焊胶接混合连接工艺,拉剪力学性能
Friction stir weldingBondingMixed connection processTensile and shear mechanical properties
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