大型圆锥形整体薄壁壳体的精密数控加工工艺研究  

Research on precision NC machining technology of large conical integral thin-walled shell

作　　者：李洋 崔鑫 赵怡 郭东亮 王元军 LI Yang;CUI Xin;ZHAO Yi;GUO Dongliang;WANG Yuanjun(Tianjin Long March Launch Vehicle Manufacturing Co.,Ltd.,Tianjin 300462,CHN)

机构地区：[1]天津航天长征火箭制造有限公司,天津300462

出　　处：《制造技术与机床》2022年第3期119-122,共4页Manufacturing Technology & Machine Tool

摘　　要：某大型圆锥形整体薄壁壳体工件业内首次采用整体锻件数控加工的制造方式,其结构复杂、精度要求高及材料去除率大,加工变形控制困难。通过对工件特征进行分析,有针对性地设计了合理的车铣加工方案,实现了壳体工件的有效装夹、应力应变控制及补偿加工,保证了工件的成品设计要求。In the industry,it′s the first time that a large conical integral thin-walled shell was adopted cnc manufacturing method using integral forging.In the process of machining,the main problems are complicated structure,high precision requirements,high material removal rate and difficulty in prcessing defommation control.Through analyzing the features of the workpiece,this paper degigns a reasonable tuming-milling processing plan,which realizes the effective clamping,stress change control and compensation processing of the shell workpicce,and ensures the design requirements of the finished workpiece.

关 键 词：锥形薄壁壳体 车铣加工 应力应变控制 

分 类 号：TH16[机械工程—机械制造及自动化] TG54[金属学及工艺—金属切削加工及机床]