Influence of Wear-Induced Turning on the Roll’s Fatigue Life
Friction-induced wear during the rolling process needs periodic remachining of caliber roll grooves, which increases operational costs and reduces roll fatigue life. Stress analysis showed that a regular reduction in the initial diameter by up to 3.5% results in a 12.2% increase in maximum stress am...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/15/7/730 |
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| author | Francisko Lukša Željko Domazet Đorđe Dobrota Branko Lalić |
| author_facet | Francisko Lukša Željko Domazet Đorđe Dobrota Branko Lalić |
| author_sort | Francisko Lukša |
| collection | DOAJ |
| description | Friction-induced wear during the rolling process needs periodic remachining of caliber roll grooves, which increases operational costs and reduces roll fatigue life. Stress analysis showed that a regular reduction in the initial diameter by up to 3.5% results in a 12.2% increase in maximum stress amplitude, reducing the estimated fatigue life by a factor of 1.5. Although fatigue life is reduced, the risk of failure under normal operating conditions remains low. Further analysis, considering mill design and roll hardness, demonstrated the feasibility of additional roll diameter reduction, thereby enabling increased production using the same rolls. The findings support further diameter reduction without compromising performance and underscore the importance of integrating such analysis into the roller design process to optimize fatigue life and roll utilization. |
| format | Article |
| id | doaj-art-dee620ad6dd34384bf7bb51604e4e149 |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-dee620ad6dd34384bf7bb51604e4e1492025-08-20T03:32:32ZengMDPI AGMetals2075-47012025-06-0115773010.3390/met15070730Influence of Wear-Induced Turning on the Roll’s Fatigue LifeFrancisko Lukša0Željko Domazet1Đorđe Dobrota2Branko Lalić3Faculty of Maritime Studies, University of Split, Ruđera Boškovića 37, 21000 Split, CroatiaFaculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Ruđera Boškovića 32, 21000 Split, CroatiaFaculty of Maritime Studies, University of Split, Ruđera Boškovića 37, 21000 Split, CroatiaFaculty of Maritime Studies, University of Split, Ruđera Boškovića 37, 21000 Split, CroatiaFriction-induced wear during the rolling process needs periodic remachining of caliber roll grooves, which increases operational costs and reduces roll fatigue life. Stress analysis showed that a regular reduction in the initial diameter by up to 3.5% results in a 12.2% increase in maximum stress amplitude, reducing the estimated fatigue life by a factor of 1.5. Although fatigue life is reduced, the risk of failure under normal operating conditions remains low. Further analysis, considering mill design and roll hardness, demonstrated the feasibility of additional roll diameter reduction, thereby enabling increased production using the same rolls. The findings support further diameter reduction without compromising performance and underscore the importance of integrating such analysis into the roller design process to optimize fatigue life and roll utilization.https://www.mdpi.com/2075-4701/15/7/730roll wearfatigue lifedurabilityshape rollingrolls turning |
| spellingShingle | Francisko Lukša Željko Domazet Đorđe Dobrota Branko Lalić Influence of Wear-Induced Turning on the Roll’s Fatigue Life Metals roll wear fatigue life durability shape rolling rolls turning |
| title | Influence of Wear-Induced Turning on the Roll’s Fatigue Life |
| title_full | Influence of Wear-Induced Turning on the Roll’s Fatigue Life |
| title_fullStr | Influence of Wear-Induced Turning on the Roll’s Fatigue Life |
| title_full_unstemmed | Influence of Wear-Induced Turning on the Roll’s Fatigue Life |
| title_short | Influence of Wear-Induced Turning on the Roll’s Fatigue Life |
| title_sort | influence of wear induced turning on the roll s fatigue life |
| topic | roll wear fatigue life durability shape rolling rolls turning |
| url | https://www.mdpi.com/2075-4701/15/7/730 |
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