CNC machining has the following advantages:

① Reduce the number of tooling a lot, and do not need complicated tooling to process parts with complex shapes. If you want to change the shape and size of the part, you only need to modify the part processing program, which is suitable for new product development and modification.

② Stable processing quality, high processing accuracy and high repeat accuracy, adapt to the processing requirements of the aircraft.

③ The production efficiency is higher in the case of multi-variety and small batch production, which can reduce the time for production preparation, machine tool adjustment and process inspection, and reduce the cutting time due to the use of the optimal cutting amount.

④ It can process complex profiles that are difficult to process by conventional methods, and even machining parts that cannot be observed.

The disadvantage of NC machining is that the cost of machine tools and equipment is high, requiring a high level of maintenance personnel.