铝/铜异种金属搅拌摩擦焊接研究进展  

Research Progress on Friction Stir Welding of Aluminum/Copper Dissimilar Metals

作　　者：吴明孝 石磊[2] 戴国欣 孙震 李胜利[2] WU Mingxiao;SHI Lei;DAI Guoxin;SUN Zhen;LI Shengli(State Grid Henan Electric Power Research Institute,Zhengzhou 450052,China;MOE Key Lab for Liquid-Solid Structure Evolution and Materials Processing,Shandong University,Jinan 250061,China)

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]山东大学材料液固结构演变与加工教育部重点实验室,山东济南250061

出　　处：《热加工工艺》2024年第21期1-8,共8页Hot Working Technology

基　　金：国网河南省电力公司科技计划项目(52170220009Y)。

摘　　要：铝/铜异种金属复合构件能够充分发挥铝和铜各自的优势,降低产品成本和重量,提高经济效益,为产品的设计和制造提供更多选择空间,因此在电力电子、新能源汽车等领域应用越来越广泛。然而,铝/铜两者之间热性能差异较大,两者实现高质量焊接面临着诸多困难。搅拌摩擦焊(Friction stir welding,FSW)作为一种固相焊接方法,具有热输入低、接头质量高的优点,已成为铝/铜异种金属的优选焊接方法之一。本文综述了近年来国内外学者在铝/铜异种金属FSW工艺、接头组织与性能调控FSW工艺改型等方面的研究进展,讨论了下一步应重点关注的问题,旨在理清铝/铜异种金属FSW工艺机理、技术难点和解决思路,为铝/铜异种金属FSW工艺优化与调控提供坚实的理论依据,以进一步推动FSW工艺在铝/铜异种金属复合构件成形中的广泛应用。Aluminium/copper(Al/Cu)dissimilar metals welded components can benefit from the properties of each material,reduce their cost and weight,improve economic performance and provide more options for product design and manufacturing.Therefore,it has broad applications in the power and electronics fields,new electric vehicles and so on.However,due to large differences in thermal physical properties between aluminium and copper,it is difficult to achieve high quality of welding between aluminium and copper.As a solid phase welding method with the advantages of low heat input and high joint quality,friction stir welding(FSW)has become one of the preferred welding methods for aluminium/copper dissimilar metals.The research progress on the fields of Al/Cu dissimilar metals friction stir welding process,the control of joint microstructure and properties,the modification of conventional FSW were firstly comprehensively reviewed.Then,the issues should be focused in the future were discussed.The purpose was to clarify the welding mechanism,technical difficulties and solutions of Al/Cu dissimilar metals friction stir welding,to lay a solid foundation for optimizing and controlling the Al/Cu dissimilar metals friction stir welding and to further promote the application of friction stir welding process in the manufacturing of the Al/Cu dissimilar metals welded components.

关 键 词：异种金属焊接 铝合金 铜合金 搅拌摩擦焊 金属间化合物 

分 类 号：TG453.9[金属学及工艺—焊接] TG456.9