After the hardware is gone, return the cloak to the slot and remove the cloak to solve the problem. The general method of removing burrs is manual removal, which is a more traditional method of processing rough parts. It mainly uses sandpaper, files, belt sanders, grinding heads and other tools to remove, and is more suitable for smaller burrs. It is also a common method to remove burrs from the punching die. This method requires a certain amount of mold manufacturing costs and even requires the manufacture of shaping molds. The punching die is used to remove burrs on the blank parts. It is more suitable for die-casting parts with relatively simple structures. Manual removal efficiency is high and the effect is better than manual removal. Grinding and removing burrs mainly uses ultrasonic vibration, roller, sandblasting and other methods. Currently, many die-casting manufacturers use this method, which is more suitable for large-volume processing of larger die-casting products. However, there will be residues in some corners that cannot be removed cleanly, and subsequent manual processing and other methods will be required to remove them. Therefore, after the hardware is polished and the blade is returned to the slot, the blade must be removed.