Definition of acceptable parameters of defects in basic details of forging and press machines
In the Soviet Union, a unique worldwide industry was created for the serial production of forging equipment. Currently, even these machines that have served their design life are in working or maintainable condition. This has led to the fact that there is now a large market for the secondary sale of...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Peoples’ Friendship University of Russia (RUDN University)
2019-12-01
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| Series: | RUDN Journal of Engineering Research |
| Subjects: | |
| Online Access: | http://journals.rudn.ru/engineering-researches/article/viewFile/23424/18095 |
| _version_ | 1797936718759854080 |
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| author | Anna V. Kornilova Kyaw Zaya |
| author_facet | Anna V. Kornilova Kyaw Zaya |
| author_sort | Anna V. Kornilova |
| collection | DOAJ |
| description | In the Soviet Union, a unique worldwide industry was created for the serial production of forging equipment. Currently, even these machines that have served their design life are in working or maintainable condition. This has led to the fact that there is now a large market for the secondary sale of such machines, including in the countries of Southeast Asia and India. However, with the secondary sale of such equipment, some inevitable damage builds up in the basic parts. In addition, the first copies of such models, put up for secondary sale, were produced at a time when non-destructive testing methods were not developed. Some defects could be undetected. When buying a machine dismantle, transport, install and test. Cases were recorded when defects were strained during installation and testing in the base parts, which made it difficult or impossible to use such equipment. Sometimes this type of equipment (during modernization) is used to carry out technological operations that require more power than previously declared. Therefore, when buying/selling (or upgrading), it is necessary to draw up cards of permissible defects, which, when superimposed on the cards of the detected defects, will allow to reject/determine the remaining life/limit the technological strength of the crank machine so that defects during further operation are not affectted and do not lead to emergency situation. The methodology for determining the permissible parameters of subsurface elliptical cracks is shown on the example of a press bed KD2130 (BZMP). |
| first_indexed | 2024-04-10T18:33:42Z |
| format | Article |
| id | doaj.art-efc230265ae04602a87fd0d84cce5a14 |
| institution | Directory Open Access Journal |
| issn | 2312-8143 2312-8151 |
| language | English |
| last_indexed | 2024-04-10T18:33:42Z |
| publishDate | 2019-12-01 |
| publisher | Peoples’ Friendship University of Russia (RUDN University) |
| record_format | Article |
| series | RUDN Journal of Engineering Research |
| spelling | doaj.art-efc230265ae04602a87fd0d84cce5a142023-02-02T02:39:39ZengPeoples’ Friendship University of Russia (RUDN University)RUDN Journal of Engineering Research2312-81432312-81512019-12-0120430831510.22363/2312-8143-2019-20-4-308-31518770Definition of acceptable parameters of defects in basic details of forging and press machinesAnna V. Kornilova0Kyaw Zaya1Peoples’ Friendship University of Russia (RUDN University)Moscow State University of Technology “STANKIN”In the Soviet Union, a unique worldwide industry was created for the serial production of forging equipment. Currently, even these machines that have served their design life are in working or maintainable condition. This has led to the fact that there is now a large market for the secondary sale of such machines, including in the countries of Southeast Asia and India. However, with the secondary sale of such equipment, some inevitable damage builds up in the basic parts. In addition, the first copies of such models, put up for secondary sale, were produced at a time when non-destructive testing methods were not developed. Some defects could be undetected. When buying a machine dismantle, transport, install and test. Cases were recorded when defects were strained during installation and testing in the base parts, which made it difficult or impossible to use such equipment. Sometimes this type of equipment (during modernization) is used to carry out technological operations that require more power than previously declared. Therefore, when buying/selling (or upgrading), it is necessary to draw up cards of permissible defects, which, when superimposed on the cards of the detected defects, will allow to reject/determine the remaining life/limit the technological strength of the crank machine so that defects during further operation are not affectted and do not lead to emergency situation. The methodology for determining the permissible parameters of subsurface elliptical cracks is shown on the example of a press bed KD2130 (BZMP).http://journals.rudn.ru/engineering-researches/article/viewFile/23424/18095forging equipmentcrank presselliptical crackallowable defect parameterthreshold value of stress intensity factor |
| spellingShingle | Anna V. Kornilova Kyaw Zaya Definition of acceptable parameters of defects in basic details of forging and press machines RUDN Journal of Engineering Research forging equipment crank press elliptical crack allowable defect parameter threshold value of stress intensity factor |
| title | Definition of acceptable parameters of defects in basic details of forging and press machines |
| title_full | Definition of acceptable parameters of defects in basic details of forging and press machines |
| title_fullStr | Definition of acceptable parameters of defects in basic details of forging and press machines |
| title_full_unstemmed | Definition of acceptable parameters of defects in basic details of forging and press machines |
| title_short | Definition of acceptable parameters of defects in basic details of forging and press machines |
| title_sort | definition of acceptable parameters of defects in basic details of forging and press machines |
| topic | forging equipment crank press elliptical crack allowable defect parameter threshold value of stress intensity factor |
| url | http://journals.rudn.ru/engineering-researches/article/viewFile/23424/18095 |
| work_keys_str_mv | AT annavkornilova definitionofacceptableparametersofdefectsinbasicdetailsofforgingandpressmachines AT kyawzaya definitionofacceptableparametersofdefectsinbasicdetailsofforgingandpressmachines |