Drop forging is a forging way that press heated round metal bar into the shape we need under the pressure of the mould.It will ensure the accuracy of dimensions and little machining allowance,no structure limit,high production efficiency.Genernal processes of drop forging are:mould developing-raw material cutting-heating material-forging-trimming cutting-heat treatment-shot blasting-machining-surface treatment-package,ect.Materials that can be applied in dropforging process can be stainless steel,alloy steel,carbon steel,copper and other forged materials.