大型锻件窗框加工变形及工艺方案研究  

Research on Deformation and Process Plan of Large Forging Frame

作　　者：李青[1] 罗育果[1] 尹成[1] 张林[1] 

机构地区：[1]中航工业成都飞机工业(集团)有限责任公司数控加工厂

出　　处：《航空制造技术》2014年第22期89-93,共5页Aeronautical Manufacturing Technology

摘　　要：窗框零件作为民用飞机上的重要承力构件,具有结构复杂、曲率大、难加工部位多、加工变形控制难等特点,而且采用锻件加工受毛坯初始残余应力影响较大。通过对典型窗框零件工艺特点以及加工关键技术进行研究,从毛坯残余应力分布、加工变形仿真预测、加工工艺过程优化等多方面进行研究,解决该类零件加工过程中变形处理的瓶颈问题,提出工程化解决方案,并形成窗框类零件加工典型工艺方案。The window frame part which is important bearing member for the civil aircraft has a complex structure,large curvature,and is difficult for machining and controlling the deformation,also is influenced by initial residual stress of forging stock.Through the study on typical frame part process characteristics and key technologies of processing,research on the residual stress distribution,the machining deformation simulation and prediction,machining process optimization and other aspects is carried out to solve the bottleneck problem of deformation processing during the parts machining process,the engineering solutions are proposed and a typical process scheme of window frame parts machining is formed.

关 键 词：窗框 飞机结构件 变形控制 有限元仿真 加工方案 

分 类 号：V261[航空宇航科学与技术—航空宇航制造工程]