The material selection and heat treatment technology of shaft forgings are very critical, which will directly affect the performance and service life of forgings. In general, the material selection of shaft forgings should consider the following aspects: 1. Strength and hardness: shaft forgings to withstand large loads and stresses, so the material selection should consider the strength and hardness of the material. Commonly used materials are carbon steel and alloy steel. 2. Toughness: Because shaft forgings may be affected by impact load and other dynamic loads during use, they need to have a certain toughness to resist fracture and deformation. 3. Wear resistance: shaft forgings are often in contact with the friction surface, so they need to have high wear resistance to extend the service life. Some alloy steels and special materials have good wear resistance. 4. Corrosion resistance: If shaft forgings work in harsh environments, such as high temperature, corrosive media and other occasions, it is necessary to choose materials with good corrosion resistance, such as stainless steel. The heat treatment technology of shaft forgings is also very important, and its performance can be improved by changing the organizational structure and performance of the material. Commonly used heat treatment techniques include quenching, normalizing, tempering, etc. The specific selection and operating parameters need to be determined according to the material and use requirements of the forging, and the best heat treatment program is generally determined through experiments and process optimization. At the same time, it is also necessary to pay attention to controlling parameters such as temperature, time and cooling rate during the heat treatment process to ensure that the ideal organization and performance are obtained.
