航空发动机中小型整体叶盘自动化抛光技术  

Automatic Polishing Technology for Small and Medium Sized Blisk of Aeroengine

作　　者：黎先才 叶欢 何志强 LI Xian-cai;YE Huan;HE Zhi-qiang(Aecc South Industry Company Limited,Zhuzhou Hunan 412002,China;School of Energy and Power Engineering,Beihang University,Beijing 100191,China;不详)

机构地区：[1]中国航发南方工业有限公司,湖南株洲412002 [2]北京航空航天大学能源与动力工程学院,北京100191 [3]枣庄北航机床创新研究院,山东枣庄277599

出　　处：《组合机床与自动化加工技术》2021年第11期143-146,共4页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：在满足工程化应用的前提下,为了实现中小型整体叶盘的全型面抛光,从抛光工具、抛光轨迹以及工艺参数等方面开展了研究。为了提高叶根圆弧抛光轮的使用寿命,基于橡胶断裂机理并利用有限元仿真对抛光轮结构进行了改进。通过真实零件的抛光实验,对抛光轨迹进行了规划,并获得了可靠的抛光工艺流程与参数。实验结果表明,抛光后铣削纹路完全去除,零件表面粗糙度Ra<0.4μm,抛光深度约为0.01~0.02 mm,满足实际抛光的技术要求。该技术攻克了国内中小型整体叶盘全型面自动化抛光的技术难题,有望实现对于现有手工抛光的取代。On the premise of engineering application,in order to realize the full-profiled polishing of small and medium-sized blisk,the polishing tools,polishing trajectory and process parameters is studied.In order to improve the service life of polishing tools for blade root arc,the structure of polishing tools is improved based on rubber fracture mechanism and finite element simulation.Through the polishing experiment of real parts,the polishing path is planned,and the reliable polishing process and parameters are obtained.The experimental results show that the surface roughness Ra is less than 0.4μm,and the polishing depth is about 0.01~0.02 mm,which meets the technical requirements of the actual polishing.It overcomes the technical problems of automatic full-profiled polishing of small and medium-sized blisk,and is expected to replace the existing manual polishing.

关 键 词：中小型整体叶盘 全型面抛光 自动化 抛光轮研制 

分 类 号：TH162[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]