Punching die processing is a manufacturing process that uses dies and punches to perforate, cut, and shape sheet metal or other materials. The core of the process is to match the mold with the workpiece through punching equipment, applying a certain pressure to make the material undergo plastic deformation, thus forming the desired hole or shape on the material. Punching mold processing is widely used in sheet metal manufacturing, electronic equipment shell, automotive parts, home appliance manufacturing and other fields.