CNC machining offers the following advantages:

① Significantly reduces the quantity of tooling required; complex fixtures are unnecessary even when machining parts with intricate geometries. If the shape or dimensions of a part need to be altered, only the machining program requires modification, making the process highly suitable for new product development and design modifications.
② Ensures stable machining quality, high processing accuracy, and excellent repeatability—attributes that effectively meet the rigorous manufacturing requirements for aircraft components.
③ Achieves high production efficiency in scenarios involving high-mix, low-volume manufacturing. It minimizes the time spent on production preparation, machine setup, and in-process inspection; furthermore, machining time is reduced through the utilization of optimized cutting parameters.
④ Capable of machining complex contoured surfaces that are difficult to process using conventional methods, and can even execute operations on machining areas that are not directly visible to the operator.
The disadvantages of CNC machining include the high cost of the machine tools themselves, as well as the requirement for maintenance personnel to possess a high level of technical expertise.