薄壁件网格铣削加工工艺研究

Research on Machining Technology in Milling Thin-walled Components

针对壁板类薄壁件网格加工时易发生加工变形、导致工件加工精度降低的问题,借助多头筒段镜像铣削设备,采用一种基于超声波测厚的薄壁件自动补偿加工方法,在300~3 000 mm/min速度范围内对聚晶金刚石刀具高速铣削7075铝合金壁板网格的加工方案进行了研究.通过仿真和试验加工,结果表明,此加工方案能把壁板网格加工厚度误差控制在0~0.06 mm范围内.

The machiningerrors and inaccuracy of work-piece frequently occur duringmachiningof thin-walled partsespecially when milling the cavity of rocket panel. High-speed milling tests were speed range of 300 ？3 000 mm/min using PCDtools to develop the milling process about the cavmulti-mirror milling equipment and a self-compensating controller based on ultrasonic thickness measurement device, the machining errors of thin-walled parts were greatly reduced. Simulation and experiments of the proposed milling process showthat this kind of milling process can control the thickness error about the 0-0. 06 mm.