Cold precision forging is a (near) net forming process. The parts formed by this method have high strength and precision, and good surface quality. At present, the total amount of cold forging parts used by an ordinary car abroad is 40~45kg, of which the total amount of tooth-shaped... parts is more than 10kg. The weight of a single piece of cold-forged gear can reach more than 1kg, and the tooth profile accuracy can reach level 7.
