The forged parts are forged into a desired metal structure by forging, which improves the metal properties (tightening the internal structure). Forgings are usually subjected to hot forging, and the original cast state is loose, pores, micro-cracks, etc., and the dendrites of the steel are broken to make the crystal grains thin. At the same time, the original carbide segregation and uneven distribution are changed to make the tissue uniform. Forgings are characterized by forgings (workpieces) that are dense, uniform, fine, comprehensive and reliable in use.
The production process of the forged piece is a workpiece in which the metal is plastically flowed to form a desired shape. When the metal is plastically flowed by an external force, the volume does not change, and the metal always flows toward the portion where the resistance is small. In forging, the shape of the forging is often controlled according to these laws, and the general shape of the forging is forged by deformation such as upsetting, lengthening, reaming, bending, and drawing. In order to make the size of the forgings accurate and to facilitate mass production, the mold forming method can be applied to organize specialized mass production or mass production.
The production process of forged parts includes forging blanking before forming, forging heating and pretreatment. After forming, the forgings are cut out by lathe machining, and the forging properties are improved by the heat treatment. After the finishing cutting, the shape of the forgings meets the requirements of the drawings, and after surface treatment and packaging, it can be shipped.