航空发动机宽弦空心风扇叶片制造研究综述  

Review on manufacture of aeroengine wide chord hollow fan blade

作　　者：李灿 郎利辉[1] SARDAR MUHAMMAD I 郭英健 张德鑫 LI Can;LANG Lihui;SARDAR MUHAMMAD I;GUO Yingjian;ZHANG Dexin(School of Mechanical Engineering and Automation,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《航空动力学报》2023年第11期2675-2687,共13页Journal of Aerospace Power

摘　　要：详细介绍了国外航空发动机风扇叶片结构及成形技术的发展与现状,从结构设计、成形工艺以及力学性能领域分析了国内钛合金宽弦空心风扇叶片研究现状。基于宽弦空心风扇叶片服役过程中现存问题,结合扩散焊接/常规塑性/超塑性成形技术,探讨了叶片空腔结构设计、成形工艺优化以及扩散焊结构力学性能三大领域的关键技术研究发展方向。结果表明:空腔结构的设计应基于结构轻量化、成形可行性及力学性能最优三大目标展开研究;成形工艺的优化着重开展多工序多目标耦合优化、数值计算精度提高、材料冷热复合加工过程形性演变精确预测与控制等方面的研究;扩散焊结构力学性能的提高应当从复杂载荷条件下焊缝裂纹扩展以及疲劳性能演变等方面展开研究。The development and present situation of aeroengine fan blade structure,forming technology abroad were introduced in details.The research status of titanium alloy wide chord hollow fan blade in China was analyzed from the aspects of structure design,forming process and mechanical properties.Based on the existing problems in the service process of wide-chord hollow fan blades,combining with the diffusion welding/conventional plastic/superplastic forming technology,the development direction of key technologies in the three fields of blade cavity structure design,forming process optimization and mechanical properties of multilayer diffusion welding structure were discussed.The cavity structure design should be based on three objectives:lightweight structure,feasibility of forming and optimal mechanical properties;The optimization of forming process focuses on the coupling optimization of multi-process and multi-objective,the improvement of numerical calculation accuracy,and the precise prediction and control of material shape evolution during cold and hot composite machining;The improvement of mechanical properties of diffusion welded structures should be studied from the aspects of bonding joint crack propagation and fatigue behavior evolution under complex load conditions.

关 键 词：空心风扇叶片 扩散焊接 超塑性成形 结构设计 成形工艺 力学性能 

分 类 号：V263.1[航空宇航科学与技术—航空宇航制造工程]