首先分析了该类零件的几何特点以及加工难点,然后提出了粗加工以及精加工当中的关键技术。阐述了插铣粗加工中,有关叶片直纹包络面的构建,刀轴矢量的选择;精加工中叶片整体加工中使用参数法规划均匀的刀具切削轨迹等关键技术。最后利用VERICUT软件,进行了加工仿真的验证,并且加工完成了开式整体叶轮的加工实例。 First of all, it analyzes the geometric characteristics and difficult points of the machining of the parts, and then puts forward the key technologies of roughing and finishing. In the process of plunging and milling, the key technologies of the blade ruled envelope construction and the tool axis vector selection are introduced. The key techniques of planning the uniform tool cutting trajectory using the parameter method in the overall machining of the blade during finishing are elaborated. At last, VERICUT software was used to verify the machining simulation, and the machining completed the machining example of the open integral impeller.