CNC (Computer Numerical Control) and CAD (Computer - Aided Design) are combined and applied in aluminum profile processing. First, CAD software is used to accurately design 2D or 3D models of aluminum profiles according to requirements, determining the shape, size, and structure. Subsequently, the CAD design files are converted into code programs that can be recognized by CNC machines. The CNC machines perform automated and high - precision processing operations such as cutting, drilling, and milling on the aluminum profiles based on this program, precisely bringing complex designs to life. The combination of the two can efficiently meet the personalized needs of various industries for aluminum profiles and is widely used in fields such as aviation, automotive, and electronics.