How to reduce the residual stress of Bearing Ring by improving the processing technology?
Publish Time: 2024-06-27
In the manufacturing process of Bearing Ring, the existence of residual stress will have a significant impact on its performance and service life. Therefore, it is crucial to reduce residual stress by improving the processing technology.
First, the cutting parameters can be optimized. Selecting the appropriate cutting speed, feed rate and cutting depth can reduce the heat generation and mechanical force in the cutting process, thereby reducing the formation of residual stress. For example, using a smaller feed rate and cutting depth can reduce the degree of deformation of the material.
Secondly, introduce advanced grinding technology. Using high-precision grinding equipment and controlling grinding parameters such as grinding wheel speed, grinding depth and feed speed can make the surface of Bearing Ring obtain more uniform force and reduce local stress concentration. At the same time, the use of low-temperature grinding technology or effective cooling of grinding fluid can prevent overheating during grinding and reduce thermal stress.
Furthermore, the prestress processing method is adopted. Before the Bearing Ring is processed, a certain prestress is applied to it, so that the material generates stress opposite to the stress generated by subsequent processing, thereby offsetting each other and achieving the purpose of reducing residual stress.
In addition, proper heat treatment is also an effective means. For example, annealing can eliminate the work hardening inside the material and release some residual stress. Quenching and tempering can adjust the material's organizational structure, improve its comprehensive performance, and also help reduce residual stress.
It is also important to make reasonable plans in the processing sequence. First, rough machining is carried out to remove most of the excess, so that the material has enough time to release stress, and then fine machining is carried out, which can effectively reduce the residual stress in the final product.
Finally, simulation technologies such as finite element analysis are used to simulate and predict the process before processing, so as to optimize the process plan and take measures in advance to reduce residual stress.
In summary, by comprehensively applying the above methods to improve the processing technology, the residual stress of the Bearing Ring can be effectively reduced, its quality and reliability can be improved, its service life can be extended, and the application requirements under various complex working conditions can be met.
