CNC Milling is a core precision machining process in modern manufacturing. It uses computer programs to control the movement of a milling machine, employing cutting tools mounted on a rotating spindle to selectively remove material from raw materials such as metal, plastic, or wood, ultimately producing complex parts or workpieces that meet design specifications. During this process, the workpiece is securely mounted on the worktable, which can move or rotate in different planes, enabling the cutting tools to process the material at various angles. Advanced CNC milling machines typically feature five or more independent axes of motion, enabling the processing of more complex shapes without needing to transfer the workpiece to other machines. As a key branch of CNC machining, CNC milling offers significant advantages over traditional manual milling, including higher precision, faster efficiency, greater stability, and the ability to process complex shapes. It is widely applied in industries such as automotive manufacturing, electronics, and mold making.