The possibilities of increasing the reliability and durability of a cylindrical group by technological methods.
DOI:
https://doi.org/10.15276/opu.1.54.2018.04Keywords:
reliability, durability, tribocorrosion, wear resistance, detachmen, thermomechanical processes, diamond-abrasive processingAbstract
The possibilities of increasing the reliability and durability of a cylindrical group by technological methods, in particular, the use of coatings
from wear-resistant materials on the working surfaces of cylinders are considered. Finishing methods of processing products with wearresistant coatings lead to the formation of defects on the surfaces to be treated, which reduce the performance characteristics of these products. An analysis of the causes of the formation and cracking on the surfaces of these products showed that the appearance of these defects is
associated with the thermal processes accompanying the machining. In this case, it is necessary to take into account the influence of the
structural heterogeneity of the workpiece layer on the mechanism of nucleation and development of defects such as cracks under the influence of thermomechanical processes accompanying diamond-abrasive processing. An analytical model has been developed to determine the
thermomechanical state of the working surface of a cylinder with a wear-resistant coating that has areas of partial delamination dur
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