Usually, the die forging process consists of the following processes: material preparation process. Generally, 4-6m long raw materials are cut into single blanks according to the specifications (or weights) required by the deformation process. Under special circumstances, it also includes rust removal, oxidation resistance and lubrication treatment of the original blank surface; Heating process? Heating the original blank or the intermediate blank according to the heating temperature and production rhythm required by the deformation process; Deformation process? That is to say, the forging process can be divided into blank-making step and die forging step. There are many ways to make blanks, and the die forging steps are only divided into pre-forging and final forging; Post forging process? It is a supplement to the completed die forging process and other previous processes, and the forgings can fully meet the requirements of forging drawings (including technical conditions) after positron emission. Such processes include: trimming, punching, bending, twisting, heat treatment, correction, surface cleaning, deburring, fine pressing, etc. Inspection process? It is divided into inter-process inspection (also called intermediate inspection) and final inspection. Inspection items include: geometry and size, surface quality, metal structure and mechanical properties. The specific inspection items are determined according to the requirements of forgings. ?
In order to ensure the smooth progress of the basic process, the next deformation process is called auxiliary process. ?
In order to improve the dimensional accuracy, surface smoothness and shape accuracy of forgings, some processes with small deformation are called dressing processes.