Compared with the conventional CNC machining process, the outstanding advantages of composite machining are mainly manifested in the following aspects:

(1) Shorten the product manufacturing process chain and improve the production efficiency. Vehicle and milling composite processing can realize all or most of the processing process, thus greatly shortening the product manufacturing process chain. On the one hand, it reduces the production auxiliary time caused by the loading card change, and also reduces the manufacturing cycle and waiting time of the tooling card, which can significantly improve the production efficiency.

(2) Reduce the number of clamping times and improve the machining accuracy. The reduction of the number of card cards avoids the accumulation of error due to the conversion of positioning reference. At the same time, most of the current vehicle and milling composite processing equipment has the function of online detection, which can realize the in-place detection and precision control of the key data in the manufacturing process, so as to improve the processing accuracy of products.

(3) Reduce the floor area and reduce the production costs. Although the single price of vehicle and milling composite processing equipment is relatively high, the investment cost of the overall fixed assets, production operation and management can be effectively reduced by the shortening of the manufacturing process chain and the reduction of the equipment required for products, as well as the reduction of the number of fixtures, workshop floor area and equipment maintenance costs.