CNC Turning is a computer-numerically controlled precision manufacturing process. During the machining process, metal or plastic rods are clamped in the spindle chuck and rotated at high speed, while fixed cutting tools feed along pre-programmed paths in axial, radial, or complex trajectories. Material is progressively removed through a subtractive process, ultimately forming parts with rotational symmetry, such as shafts, discs, flanges, and threaded components. This process combines high precision, high efficiency, and excellent repeatability. It can not only independently complete the machining process from raw material to finished product but also collaborate with milling functions in composite machine tools to achieve the production of more complex shapes. It is widely applied in industries such as automotive and medical, used to manufacture critical components like camshafts and surgical instruments, making it an indispensable core technology in modern manufacturing.