我厂在加工φ180×1.6mm高速钢(W18Gr4V)锯片铣刀时(图1),两平面经精车后要求平面度<0.1mm。而薄片工件车削的主要问题是变形,由于工件刚性差,夹紧定位困难,加工中回弹变形严重,切削力和夹紧力是造成变形的主要原因。所以,工件夹紧定位方式,要尽量改善和克服上述情 I plant processing φ180 × 1.6mm high-speed steel (W18Gr4V) saw blade milling cutter (Figure 1), the two planes after the finishing plane required flatness <0.1mm. The main problem of sheet metal turning is deformation, due to the poor rigidity of the workpiece, the clamping position is difficult, the process of rebound deformation serious, cutting force and clamping force are the main causes of deformation. Therefore, the workpiece clamping positioning, to try to improve and overcome the situation