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。 As the important bearing component of civil aircraft, the window frame parts have the characteristics of complex structure, large curvature, difficult parts to be machined, difficult deformation control and so on. Moreover, the initial residual stress of the blank is more affected by the forging process. Through the research on the process characteristics and the machining key technology of the typical frame parts, this paper studies the residual stress distribution in the blank, the simulation of the machining deformation and the optimization of the machining process to solve the bottleneck of the deformation process in the machining of such parts. Engineering solutions, and the formation of the window frame parts processing typical process options.