CNC machine tools are suitable for complex shaped parts processing, can complete the ordinary machine tool is difficult to complete or simply can not be processed complex parts processing, so in the aerospace, marine, mould and other processing industries are widely used. CNC machine tool processing high precision, good working conditions, high degree of machine tool motorization, the operator's work intensity is greatly reduced, the working environment is better, conducive to the modernization of the management of the use of CNC machine tools is conducive to the development of computer control and management of production aspects of the automation of the production process for the realization of the creation of conditions. CNC machine tools high productivity itself, high precision, rigidity, can choose a convenient amount of processing, high productivity, generally 3-5 times the ordinary machine tools, the processing of certain complex parts, productivity can be increased by dozens of times or even tens of times. CNC machine tool processing is stable and reliable to achieve computer control, to eliminate human error, good consistency in the processing of parts, stable and reliable quality, high flexibility when the processing object change, generally only need to change the CNC programme, reflecting a good adaptability, can greatly save the production of preparation time. CNC machine tool investment, the use of high-cost, complex production preparations due to the entire machining process using the programme control, CNC machining of the pre-preparation work is more complex, including the process to determine the programming, programming and so on.   Compared with the conventional CNC machining process, CNC machine tools have outstanding advantages mainly in the following areas:

(1) shorten the product manufacturing process chain, improve production efficiency. Can install a variety of special tools, new tool layout, reduce the tool change time, improve processing efficiency, CNC machine tools can achieve a clamping to complete all or most of the machining process, thus greatly reducing the product manufacturing process chain. This on the one hand reduces the production of auxiliary time due to changes in loading card, but also reduces the manufacturing cycle of tooling fixtures and waiting time, can significantly improve production efficiency.

(2) Reduce the number of clamping, improve processing accuracy. The reduction of the number of times of clamping to avoid the accumulation of errors caused by the transformation of positioning reference. At the same time, most of the CNC machine tools have the function of online detection, can achieve the manufacturing process of key data in place detection and precision control, thus improving the processing accuracy of the product; high-strength integration of the bed design, improve the gravity machining of difficult-to-cut materials; the machine tool is configured with an automatic feeding device, can achieve automatic loading to the continuous, basically to achieve the single machine tool for the assembly line operation.

(3) Reduce floor space, reduce production costs. Compact and beautiful shape design, improve the use of space, maintenance and repair is more convenient for customers to get big satisfaction; although the CNC machine tool turning and milling compound processing equipment for a single unit price is relatively high, but due to the shortening of the manufacturing process chain and the reduction of equipment required for the product, as well as the number of fixtures and fittings, shop floor space and equipment maintenance costs are reduced, and can effectively reduce the overall investment in fixed assets, production operation and management costs.