Different profile shapes can be created including cylinders tapers contours and shoulders. A rough-cut pass is usually made first. One or more finishing passes follow this.

• 这种操作)可以生成多种轮廓形状包括圆柱面、圆锥面、成形面以及轴肩面。一般先粗加工一次后面再跟一道或几道精加工。