Increased Wear Resistance of Surfaces of Rotation Bearings Methods Strengthening-Smoothing Processing
Résumé
Trends of modern engineering put forward higher requirements for quality bearings. This is especially true on production of bearings for special purposes with high speeds of rotation and resource. Much more opportunities in the technology management quality surface layers appear in the application of smoothing-strengthening methods, based on superficial plastic deformation. Working models of cutting lathes, grinders and tool smoothing sequence revealed the formation of operational parameters in the technological cycle of roller rings. The model of the dynamics of elastic deformation of the work piece tool helps identify actions radial force in the contact "surface-indenter." Using mathematical modeling resolved a number of issues relevant process. Introduction. Trends of modern engineering put forward higher requirements for quality bearings. This is due to the fact that the reliability and durability of the machine mechanical largely depends on the operability established in her bearings. Most of the mechanisms operating in roller bearings are subjected to loads that differ from the calculation. Due to the large number of operational factors and mechanisms of their random nature complicated forecasting bearing behavior in real conditions. This leads to a premature loss of the performance of the bearing. This is especially true on production of bearings for special purposes with high speeds of rotation and resource. During work bearing an intense local working surfaces wear rings. Tangent surfaces tend to acquire a geometric shape and roughness that best match specific operating conditions. During this emerging higher contact stresses, which can lead to leakage of thermal processes in the surface layer of the metal and reduce its physical and mechanical properties. In areas of maximum deformation of the surface layer of the metal contact stresses the rise to critical values.
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