The research on manufacturing technology of high-speed train shaft forgings is about how to manufacture high-speed train shaft forgings. The following is the general manufacturing process research steps and methods: 1. Material selection: Choose the material suitable for high-speed train shaft forging, usually consider the strength, wear resistance and impact energy absorption characteristics of the material. 2. Process design: According to the design requirements, determine the geometry and size of the forging. Considering the complexity and height requirements of shaft forgings, it is necessary to carry out process simulation and optimization design to ensure that the forging does not produce too many defects and deformation during the manufacturing process. 3. Preheating: pre-heating the forging to a certain temperature to improve the plasticity of the material and reduce the deformation force during forging. 4. Forging: The preheated metal blank is heated to the plastic temperature by forging machinery, and then pressure is applied to make it flow in the mold and form the initial shape of the forging. This process can be carried out by cold forging or hot forging. 5. Heat treatment: Heat treatment of forgings, including quenching, tempering and other processes, in order to obtain the mechanical properties and organizational structure required for forgings. 6. Machining: Machining of forged forgings, including turning, milling, drilling and other operations to achieve the required size, accuracy and surface quality. 7. Testing and quality control: quality inspection of forgings by means of non-destructive testing, metallographic analysis and physical property testing to ensure that the quality of forgings meet the design requirements. 8. Surface treatment and corrosion prevention: Surface treatment of forgings, such as coating, spraying, etc., to improve the oxidation resistance and corrosion resistance of forgings. Through the above manufacturing process research, the high speed train shaft forgings can be effectively produced to meet the requirements of high strength and high reliability during operation. At the same time, continuous optimization and improvement of manufacturing processes can improve production efficiency and reduce costs.
