大型整体壁板加工变形控制技术研究  

Research on Deformation Control Technology of Large Integral Wall Panel Machining

作　　者：周益星 陈云 邓枫 胡小辉 Zhou Yixing;Chen Yun;Deng Feng;Hu Xiaohui(AVIC Chengdu Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610092,China;不详)

机构地区：[1]成都飞机工业(集团)有限责任公司

出　　处：《工具技术》2024年第3期102-106,共5页Tool Engineering

摘　　要：针对典型大型整体壁板数控加工后变形量高达40mm且无法喷丸校形的问题,采用有限元仿真研究毛坯初始残余应力与零件变形量的相关性,通过改变加工顺序,优化加工过程材料去除策略,有效控制整体壁板的加工变形。结合实际工艺方案,通过合理选择切削参数,即采用小直径刀具径向逐层走刀,切削轨迹由沿宽度方向调整为沿长度方向,减少零件加工变形量。通过实例加工验证了该方法能有效解决大型整体壁板加工变形的问题。In order to solve the problem that the deformation of large integral wall board is as high as 40mm after NC machining and can not be shot-peening.The correlation between initial residual stress of blank and the deformation of parts by finite elemtnt simulation method is proposed.The material removal strategy is optimized to effectively control the process deformation of the monolithic wall panels.According to the actual process,the deformation of the parts can be reduced by selecting cutting parameters reasonably,that is using small diameter cutters to pass the tools layer by layer,and adjusting the cutting path from the width direction to the length direction.It is proved that this method can effectively solve the problem of machining deformation of large-scale monolithic panels.

关 键 词：整体壁板 有限元仿真 去除策略 切削参数 加工变形 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TH162[机械工程—机械制造及自动化]