Because of its high strength, high stiffness, high precision and corrosion resistance, metal forgings are widely used in machinery manufacturing, automobile industry, electronic communications, aerospace and other fields. They are mainly formed by various metal materials through forging, heat treatment, machine processing and other processes, and the quality is directly related to the reliability and life of the product. Metal forgings are formed by physical and chemical changes in raw materials. The forming process is crucial for the quality control of metal forgings. The following points are important for the forming process of metal forgings: 1. Select the right mold For different metal forging materials and the next processing requirements, should choose different materials of the mold, and ensure that the mold surface processing finish standard. 2. Reasonable control of manufacturing temperature In the manufacturing of metal forgings heating temperature selection should be based on the composition of the forging material, fracture toughness, yield limit and size and other factors to ensure the stability of forging quality. 3, the use of reasonable forging method in the manufacturing process of metal forgings, the use of different forging methods can make the microstructure of different control, and can obtain tensile, compression and other force values in different directions, improve the stability and safety of forgings. 4. Pretreatment of billet to increase the material temperature, adjust the cooling speed, choose the appropriate cooling method and other pretreatment processes have an important role. The use of different preheating technologies, such as local preheating, overall preheating or the use of different preheating materials, can greatly improve its plasticity and reduce manufacturing costs without damaging the mechanical characteristics of metal forgings. 5. Strict heat treatment of metal forgings material contains a large number of chemical elements, heat treatment process can not only change the physical and chemical properties of the material, but also play an important role in the control of the entire process. Therefore, it is necessary to provide high precision heat treatment technology with high quality and neutral environment according to demand to improve the wear resistance and fatigue strength of hardware forgings. In summary, the forming process of metal forgings is a very complex process, which affects each other between the links, and the quality determines the reliability and life of metal forgings. Therefore, the production process of metal forgings requires precision adjustment of equipment, reasonable selection of materials, and strict control of the process to ensure that high-quality metal forgings can be produced.
