线性摩擦焊接热力耦合行为及其研究现状  

State-of-the-Arts of Thermo-Mechanical Coupling Behavior in Linear Friction Welding Process

作　　者：耿培皓 秦国梁 GENG Peihao;QIN Guoliang(Key Laboratory for Liquid-Solid Structural Evolution&Processing of Materials,Ministry of Education,Jinan 250061,China;School of Materials Science&Engineering,Shandong University,Jinan 250061,China;Joining and Welding Research Institute,Osaka University,Osaka 567-0047,Japan)

机构地区：[1]材料液固结构演变与加工教育部重点实验室,济南250061 [2]山东大学材料科学与工程学院,济南250061 [3]大阪大学接合科学研究所,大阪567-0047

出　　处：《航空制造技术》2021年第7期14-27,共14页Aeronautical Manufacturing Technology

基　　金：国家自然科学基金(52005294,52005297);山东省自然科学基金(ZR2020QE178)。

摘　　要：线性摩擦焊接技术作为一种典型的固相连接技术,以其自身绿色、高效、优质的技术优势,已经成为当今国际上高性能航空发动机整体叶盘的关键制造技术。线性摩擦焊接是在方向交变的振动摩擦作用下将机械能转变为热能,使材料达到高温塑性状态实现焊接的过程,其中热力耦合是摩擦焊接过程的核心,其行为决定了线性摩擦焊接头组织和性能。通过总结线性摩擦焊接过程中热力耦合行为及其相关研究方法,较为全面地阐述了线性摩擦焊接热力耦合各个物理场的国内外研究现状,为进一步开展线性摩擦焊热力耦合分析提供指导,最后讨论了线性摩擦焊接热力耦合研究中的不足与发展前景,以期为今后研究提供参考借鉴。As a typical solid-state joining technology,the linear friction welding(LFW)process has gradually been the key manufacturing technology of bladed discs in advanced aircraft engines because of its advantages of environmental friendly,high efficiency and high quality.In linear friction welding process,the mechanical energy was transformed to heat energy by means of alternative friction,and make the materials reach to the plastic state and be welded,in which,thermomechanical coupling is the basis of the linear friction welding process and determines the microstructures and properties of the joint.The inherent characteristics of thermo-mechanical coupling behavior in LFW,and the corresponding numerical simulation methods are introduced,and a more comprehensive literature review of the state-of-the-arts of thermomechanical coupling of the LFW process is summarized,which can provide the guidelines for the studies on thermomechanical coupling behaviors in LFW.Finally,the problems and development prospects of numerical simulation of thermo-mechanical coupling in LFW are discussed to provide some ideas for the future research.

关 键 词：线性摩擦焊 热力耦合 塑性流变场 焊接热过程 应力应变场 数值模拟 

分 类 号：TG453.9[金属学及工艺—焊接]