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become the preferential approach [1,2]. The connection of dissimilar sheet metals is one of the problems of lightweight material needed to confront and solve [3]. However, the formulation... of the traditional connection of dissimilar sheet metals, a new method "cold-pressing deformation joining" was proposed. By using finite element simulation software DEFORMTM-3D, the joining process......
and the vortex-like material flow was dominant. The sharp interfaces are usually presented in a zigzag shape and formed in the lower heat input; they can also be observed in the dissimilar welding between... the front to the back of the pin during FSW [29]. In other words, the asymmetric nature of the process would be compensated by the suitable arrangement of the dissimilar material. Positioning the Incoloy......
,由于Ti2Ni脆性相熔点低,在凝固后期难以从周围获得金属液补给,使熔合区产生孔洞. 3) 消除焊接裂纹后的接头抗拉强度达391 MPa,伸长率为2.7%,断裂位置为脆性的TC4熔合线附近,脆性相对接头力学性能影响较大. REFERENCES [1] KAH P, SHRESTHA M, MARTIKAINEN J. Trends in joining dissimilar metals...]. Fme Transactions, 2017, 45(1): 165-171. [3] 李 燕. SAF2205双相不锈钢与异种金属的焊接性研究[D]. 南京: 南京航空航天大学, 2011: 19-55. LI Yan. Research on weldability of SAF2205 duplex stainless steel and dissimilar metals[D......
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, and microstructure, elements distribution and phase compositions of the welding joint were studied by the horizontal microscopy, SEM with EDS and XRD. Considering the temperature dependence of material properties, initial conditions, boundary conditions and other factors, the nonlinear 3-D conduction finite element model of the steel/magnesium dissimilar metal laser welding was established by ANSYS finite......
Trans. Nonferrous Met. Soc. China 28(2018) 1287-1297 Effect of post-weld heat treatment on joint properties of dissimilar friction stir welded 2024-T4 and 7075-T6 aluminum alloys B. SAFARBALI, M... heat treatment on dissimilar friction stir welded AA7075 and AA2024 joints was studied. After welding in constant parameters, solution heat treatment and various aging treatments were given to the welded......
严重,在焊核和铝合金母材的边界存在搅拌头磨损后脱落的颗粒. 关键词:钛合金;铝合金;异种合金;结构;搅拌摩擦焊;显微组织 中图分类号:TG 456.9 文献标志码:A Microstructure of friction stir welding joint between titanium and aluminum dissimilar..., Nanchang 330063, China; 2. China Friction Stir Welding Center, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China) Abstract: The dissimilar metals of TC1 titanium......
of welded joints with adhesive layer addition. Key words: laser welding; steel/aluminum dissimilar metal; adhesive layer; microstructure; mechanical property 汽车轻量化成为21世纪汽车技术的前沿和热点,高的比强度钢,铝合金等轻质材料的大量使用对于整车的轻量化... of Mg/Al laser weld bonding[C]//Chinese Mechanical Engineering Society and WeldingBranch. Proceedings of 2008 International Forum on Light Metal and High Strength Material Welding Technology. Beijing......
strength of aluminum base material. Key words: aluminum alloy; stainless steel; intermetallic compounds; laser-arc hybrid welding; dissimilar joining 近年来,国家大力倡导节能环保,节能减排成为汽车工业发展的主要研究课题.减少汽车自身质量是降低燃油消...:A Interfacial properties and tensile strength of laser arc hybrid welded dissimilar Al/steel joint MEI Shu-wen1, CHENG Qun-lin1, JIANG Yong1, HU Pei-pei1, SUN Xi-jian1, GAO Ming2 (1. Shanghai......
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