There are several kinds of wheel hub manufacturing processes. The difference is that the manufacturing process is different: the wheels of ordinary cars are cast, and the casting process is to pour liquid metal into the wheel hub mold to cool; The wheels of high-end cars are forged. The forging process is to heat the aluminum block to the necessary temperature, press it into a blank with a forging press, and then spin the blank. The hub is a cylindrical metal part, the center of which is installed on the shaft to support the inner contour of the tire. Also called rims, rims, wheels and tire bells. Hub can be roughly divided into painting and electroplating, and electroplating hub can be divided into silver plating, water electroplating and pure electroplating.
Million car purchase subsidy