The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process
Heavily loaded structural elements operating in a corrosive environment are usually quickly destroyed. An example of such an element is a ship propeller operating in a seawater environment. This research presents a fatigue resistance test performed on elements operating in seawater. Different proces...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/8/4/63 |
| _version_ | 1797550605483376640 |
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| author | Stefan Dzionk Włodzimierz Przybylski Bogdan Ścibiorski |
| author_facet | Stefan Dzionk Włodzimierz Przybylski Bogdan Ścibiorski |
| author_sort | Stefan Dzionk |
| collection | DOAJ |
| description | Heavily loaded structural elements operating in a corrosive environment are usually quickly destroyed. An example of such an element is a ship propeller operating in a seawater environment. This research presents a fatigue resistance test performed on elements operating in seawater. Different processing parameters applied on the samples in particular were compared with the specimens whose surface had been burnished differently and they were compared to specimens with a grinded surface. The research shows that the structural elements whose surface has been burnished can have up to 30% higher fatigue strength in a seawater environment than the elements whose surface has been grinded. During burnishing, an important feature of the process is the degree of cold rolling of the material. The resistance of the component to fatigue loads increases only to a certain level with increasing the degree of the cold rolling. Further increasing the degree of cold rolling reduces the fatigue strength. Introducing additional stresses in the components (e.g., assembly stresses) reduces the fatigue strength of this component in operation and these additional stresses should be accounted for while planning the degree of the cold rolling value. A device that allows for simultaneous turning and shaft burnishing with high slenderness is presented in the appendix of this article. This device can be connected to the computerized numerical control system and executed automatic process according to the machining program; this solution reduces the number of operations and cost in the process. |
| first_indexed | 2024-03-10T15:31:40Z |
| format | Article |
| id | doaj.art-918cc55b4af34fb9bb3a094cc73f52eb |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-10T15:31:40Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Machines |
| spelling | doaj.art-918cc55b4af34fb9bb3a094cc73f52eb2023-11-20T17:33:49ZengMDPI AGMachines2075-17022020-10-01846310.3390/machines8040063The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing ProcessStefan Dzionk0Włodzimierz Przybylski1Bogdan Ścibiorski2Department of Manufacturing and Production Engineering, Faculty of Mechanical Engineering, Gdansk University of Technology, 80-233 GDAŃSK, PolandDepartment of Manufacturing and Production Engineering, Faculty of Mechanical Engineering, Gdansk University of Technology, 80-233 GDAŃSK, PolandDepartment of Manufacturing and Production Engineering, Faculty of Mechanical Engineering, Gdansk University of Technology, 80-233 GDAŃSK, PolandHeavily loaded structural elements operating in a corrosive environment are usually quickly destroyed. An example of such an element is a ship propeller operating in a seawater environment. This research presents a fatigue resistance test performed on elements operating in seawater. Different processing parameters applied on the samples in particular were compared with the specimens whose surface had been burnished differently and they were compared to specimens with a grinded surface. The research shows that the structural elements whose surface has been burnished can have up to 30% higher fatigue strength in a seawater environment than the elements whose surface has been grinded. During burnishing, an important feature of the process is the degree of cold rolling of the material. The resistance of the component to fatigue loads increases only to a certain level with increasing the degree of the cold rolling. Further increasing the degree of cold rolling reduces the fatigue strength. Introducing additional stresses in the components (e.g., assembly stresses) reduces the fatigue strength of this component in operation and these additional stresses should be accounted for while planning the degree of the cold rolling value. A device that allows for simultaneous turning and shaft burnishing with high slenderness is presented in the appendix of this article. This device can be connected to the computerized numerical control system and executed automatic process according to the machining program; this solution reduces the number of operations and cost in the process.https://www.mdpi.com/2075-1702/8/4/63burnishing processfatigue strengthship propellersurface layersurface processing |
| spellingShingle | Stefan Dzionk Włodzimierz Przybylski Bogdan Ścibiorski The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process Machines burnishing process fatigue strength ship propeller surface layer surface processing |
| title | The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process |
| title_full | The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process |
| title_fullStr | The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process |
| title_full_unstemmed | The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process |
| title_short | The Possibilities of Improving the Fatigue Durability of the Ship Propeller Shaft by Burnishing Process |
| title_sort | possibilities of improving the fatigue durability of the ship propeller shaft by burnishing process |
| topic | burnishing process fatigue strength ship propeller surface layer surface processing |
| url | https://www.mdpi.com/2075-1702/8/4/63 |
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