The possibilities of increasing the reliability and durability of a cylindrical group by technological methods
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 wear-re...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Odessa National Polytechnic University
2018-04-01
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| Series: | Trudy Odesskogo Politehničeskogo Universiteta |
| Subjects: | |
| Online Access: | http://pratsi.opu.ua/articles/show/12514 |
| Summary: | 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 wear-resistant coatings lead to the formation of defects on the surfaces to be treated, which reduce the performance characteristics of these prod-ucts. An analysis of the causes of the formation and cracking on the surfaces of these products showed that the appearance ofthese 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 influ-ence 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 during appli-cation. Tribocorrosive studies of composite materials based on Ni/Ni-TiO2obtained by electrochemical deposition are carried out. |
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| ISSN: | 2076-2429 2223-3814 |