Adopting electrochemical grinding and magnetic grinding processes, the punching gap is precisely controlled during the mold design stage, and negative gap punching is used to reduce burrs from the source; After stamping, deburring treatment is carried out to ensure that there are no sharp edges. Then, a 100% full inspection of the workpiece surface is carried out to screen out scratches, burrs, and products with substandard smoothness, ensuring that the delivered parts meet medical or optical surface standards.