① Reduce the number of workers in large quantities, and complicated parts of processing shapes do not require complicated workflow. If you want to change the shape and size of the parts, you only need to modify the parts processing program, which is suitable for the development and modification of new products.

② The quality of processing is stable, the processing accuracy is high, and the accuracy of the repeated accuracy is high, and the processing requirements of the aircraft.

③ Multi -varieties and small batch production efficiency are high, which can reduce the time for production preparation, machine tool adjustment and process inspection, and reduce the cutting time due to the best cutting amount.

④ The complex surface that is difficult to process can be processed, and it can even be processed to process some irreplaceable processing parts.

The disadvantage of CNC machining is that the equipment for machine tools is expensive, and maintenance personnel are required to have a high level.