主被动充液拉深技术提升某发动机半环壳形底座零件质量的研究  

Research on Improving the Quality of a Semi-Ring Shell Base Part for an Engine Using Active and Passive Hydroforming Deep Drawing Technology

作　　者：马超[1] MA Chao(Chengdu Aeronautic Polytechnic,Chengdu 610100,China)

机构地区：[1]成都航空职业技术学院,成都610100

出　　处：《成都航空职业技术学院学报》2025年第1期62-66,共5页Journal of Chengdu Aeronautic Polytechnic

基　　金：绿色通用航空动力江西省重点实验室2024年开发基金项目“通航发动机压气机叶片氮化钛表面涂层制备与组织研究”(Ef202480368)。

摘　　要：随着我国新一代战机的成功研制,对具有自主知识产权的先进航空发动机研制工作提出了更高要求。半环壳形零件作为航空发动机底座中难以加工的部件,在复杂程度、制造精度和装配准确度等方面有着较高要求,其特点包括曲面复杂、边缘有台阶和带下陷结构等。通过理论分析、有限元模拟和工艺实验相结合的方法,设计了先主动胀形再拉深的充液拉深技术方案,研究了成形过程的起皱、破裂等失效形式,并分析了压边力加载路径、主动胀形液室压力大小及加载路径等关键工艺参数对成形质量的影响,从而获取了优化的压边力加载路径、主动胀形液室压力及液室加载路径。试验结果表明,该工艺方案能够成形出曲面精度好、台阶准确度高和壁厚均匀的零件。With the successful development of China's new generation of fighters,higher requirements have been set for the development of advanced aero-engines with independent intellectual property rights.As a key component of aero-engines,the semi-ring shell is difficult to be machined,which features complex surfaces,steps and sunken structures.n this paper,a method combining theoretical analysis,finite element simulation and process experiment is used to design a hydraulic deep drawing technology that involves active bulging followed by deep drawing.The effects of key process parameters,such as blank holder force loading path,active bulging chamber pressure and chamber pressure loading path on forming quality are analyzed.The optimized loading path for the blank holder force,the pressure of the active bulging liquid chamber and the loading path for the liquid chamber are obtained.The experimental results show that this process can produce parts with good surface accuracy,high step accuracy and uniform wall thickness.

关 键 词：发动机 半环壳形零件 主动胀形 压边力 液室压力 

分 类 号：TG386[金属学及工艺—金属压力加工] V261.28[航空宇航科学与技术—航空宇航制造工程]