Most turn-milling composite machining is completed on a turning center, while the general turning center only replaces the ordinary turret tool holder of a CNC lathe with a turret tool holder with a power tool, and the spindle adds a C-axis function. Due to limitations in the structure and overall dimensions of the turret tool holder, the power of the power head is low, the rotational speed is not high, and larger tools cannot be installed. This type of turning center is mainly for turning, and the milling and drilling functions are only for auxiliary processing. The high cost of power tool holders results in high costs for turning centers

The turning and milling composite machining center is a machine tool with B-axis linkage and C-axis linkage that can perform turning and milling processing. It can be said that all or most of the processing of a part can be completed on the turning and milling composite machine tool, so it is also known as a small production line. It not only improves the accuracy of products and the efficiency of processing products, but also greatly saves the floor space of machine tools for enterprises. In the past, it was necessary to complete the processing of a part on several machine tools, but now only one machine is needed to complete all the processing.

Composite machining is one of the internationally popular machining processes in the field of mechanical processing. It is an advanced manufacturing technology. Composite machining is the implementation of several different processing techniques on a single machine tool. Composite machining is widely used and difficult, which is turning milling composite machining. The turning and milling composite machining center is equivalent to the combination of a CNC lathe and a machining center.

CNC machine tools are machines that use digital information to achieve automatic control. It compiles information related to the processing of parts (such as the size parameters of the relative motion trajectory between the workpiece and the tool, the process parameters of cutting, and various auxiliary operations) into a machining program sheet in a specified format using specified text, numbers, and symbols, and then inputs it into the CNC device through the control medium. After analysis and processing by the CNC device, Send out various signals and instructions corresponding to the processing program for automatic processing.

The overall price of ordinary machine tools is relatively cheap, making them more cost-effective in terms of production costs. The main advantage of ordinary machine tools is experience, and experienced operators who have received training on ordinary machine tools will excel in machining efficiency compared to novices using CNC.