The turning-milling composite machine tool has the following important functions:

1. Turning Function: Capable of performing various turning operations for shaft-like and disc-like parts, including external cylindrical turning, internal hole turning, face turning, grooving, and threading.
2. Milling Function: Enables flat milling, contour milling, cavity milling, drilling, boring, tapping, and other milling operations.
3. Multi-Axis Linkage: Typically equipped with multiple motion axes, allowing for multi-axis linked machining to produce complex spatial surfaces and irregular structures.
4. Multi-Process in One Setup: Completes various machining processes such as turning and milling in one setup, reducing the number of setups, improving machining accuracy and efficiency, and minimizing errors caused by multiple setups.
5. Complex Parts Machining: Capable of machining complex shapes with high precision requirements, such as aerospace components and medical device parts.
6. Automatic Tool Change: Equipped with an automatic tool change system that can quickly replace various types and specifications of turning tools, milling cutters, and other tools as needed.
7. High Precision Machining: Utilizes advanced control systems and precise mechanical structures.