① reduce the number of tooling, processing complex parts of the shape does not require complex tooling. If you want to change the shape and size of the part, you only need to modify the parts processing program, suitable for new product development and modification.
② the processing quality is stable, the machining precision is high, the repetition precision is high, adapts the craft request.
More varieties, small batch production in the case of high production efficiency, can reduce production preparation, machine tool adjustment and process inspection time, and because of the use of the best cutting amount to reduce the cutting time.
Can processing conventional methods difficult to process complex surface, can even process some of the processing parts can not be observed.
The disadvantage of NC machining is that the machine tool equipment is expensive and requires the maintenance personnel to have a higher level.