粗加工
粗加工操作负责大部分的切削加工量。特殊铣削策略，例如高进给加工或摆线铣削，可以减少加工时间，从而提高经济效率。除了带有可转位刀片的刀具和整体硬质合金铣刀外，还使用了具有特殊粗加工几何形状的高性能铣刀。
Residual material roughing
After roughing, in a second machining step, users machine the residual material, especially in corners and cavities, removing material as constantly as possible. Usually tools with corner radius or high-feed milling cutters are used. In some cases a ball cutter can be used to remove the residual material in corners.
Pre-finishing
If there are high demands on dimensional accuracy and surface finish, semi-finishing is recommended before finishing. With pre-finishing, machining approaches the final mould profile. The aim is to obtain a residual material that is as constant as possible in order to enable fast finishing with high demands on the surface quality. The stock removal after roughing is approx. 0.5-1 mm for hardened materials and 0.03-0.5 mm for soft materials. After pre-finishing, the constant stock removal is 0.05-0.1 mm for hardened materials or 0.1-0.3 mm for soft materials.
精加工
精加工去除剩余的加工余量以达到最终形状。在半精加工后，淬硬材料的加工余量为 0.05-0.1 mm，软质材料的加工余量为 0.1-0.3 mm。球形和/或圆角铣刀是首选刀具，具体取决于工件的最终轮廓。
