This paper introduces how to control dimensional accuracy and form tolerance of locomotive bearing forgings, including raw material selection, forging process optimization, measurement and adjustment. Through the implementation of these measures, the dimensional accuracy and form and position tolerance of forgings can be effectively improved, and the safe and stable operation of railway traffic can be guaranteed.
Locomotive bearing forging is the key part of railway rolling stock, which is of great significance to ensure the safety and stability of railway traffic. However, due to the influence of many factors, the dimensional accuracy and form and position tolerance of locomotive bearing forgings may exceed the standard in the process of use, which seriously affects the normal operation of railway traffic. Therefore, it is of great practical significance to study the dimensional accuracy and form and position tolerance control of locomotive bearing forgings.
Dimensional accuracy control
Selection of raw materials: Choosing the right raw materials is the basis for ensuring the dimensional accuracy of the forging. Raw materials with stable quality and uniform organization should be selected to avoid the influence of internal defects and impurities on the dimensional accuracy of the forging.
Forging process optimization: forging process is a key factor affecting the dimensional accuracy of forging parts. The forging process should be optimized to ensure that the heating temperature, holding time, forging force and other parameters are reasonable, reduce the residual stress inside the forging, and improve the dimensional accuracy.
Measurement and adjustment: In the forging process, the size of the forging should be measured regularly, and the size deviation should be found and adjusted in time to ensure that the dimensional accuracy of the forging meets the requirements.
Form and position tolerance control
Control in the forging process: in the forging process, effective measures should be taken to control the deformation of the forging to avoid the formation of defects and deformation. At the same time, the process should be rationally arranged to reduce the stress concentration in the process and reduce the form and position tolerance.
Control of the heat treatment process: The heat treatment process also has an important impact on the form and position tolerance of the forging. A reasonable heat treatment process should be developed to ensure that the forgings are properly treated during the heat treatment process to reduce deformation and internal stress.
Measurement and adjustment: In the process of processing, the form and position tolerance of the forging should be measured and adjusted to ensure that the design requirements are met. At the same time, advanced measuring tools and means should be used to improve the measurement accuracy and adjustment efficiency.
By taking effective measures to control the dimensional accuracy and form and position tolerance of locomotive bearing forgings, the quality and service life of the forgings can be improved, and the safe and stable operation of railway traffic can be guaranteed. In the future, with the continuous progress and application of science and technology, it is believed that more control technologies will be applied in the production of locomotive bearing forgings, and contribute to improving the safety and stability of railway traffic.
