1. The turning and milling composite machining center is a machine tool with b-axis linkage and c-axis linkage, which can perform turning and milling. It can be said that all or most of the parts can be processed on a turn-milling composite machine tool, hence it is also known as a small production line. It can not only improve the accuracy of products and the efficiency of processing products, but also greatly save the machine tool area of enterprises. In the past, it was necessary to process a part on several machine tools, but now only one machine tool is needed to complete all the processing. This type of machine tool can also be divided into vertical turning and milling composite machine tools and horizontal turning and milling composite machine tools. This type of machine tool is very common in developed countries such as Europe and Japan. China has just started and its development is very slow, mainly because the Chinese people still treat this type of machine tool as before, greatly wasting turning and milling composite machine tools. The main producers of machine tools include WFL, DMG, MAZAK, Baomei, Mori Seiji, etc.

2. For a five axis machining center, milling can only be performed, and turning cannot be performed. Therefore, there are also many limitations in processing. Turning and milling composite processing can cover the processing of the five axis machining center, but the five axis cannot be used for turning and milling composite processing.