For the finishing machining of globoid indexing cam, double envelope method without error in theory is used and special measures are taken to avoid undercutting and vibrating of the machining process.

• 在精加工刀位规划阶段，采用两重包络法对凸轮廓面进行无理论几何误差刀位规划，并对刀具轨迹进行处理以避免空刀现象，从而防止加工过程中振动的出现。