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Kyushu Institute of Technology
Kyushu Institute of Technology
Kyushu Institute of Technology
Kyushu Institute of Technology
Kyushu Institute of Technology
Kyushu Institute of Technology
抄録
In hot rolling mills, bimetallic rolls are used because of the excellent hardness and wear resistance by applying high-speed steel (HSS) and ductile casting iron (DCI). Because most of the previous studies focused on surface spalling, almost no study is available for internal fatigue failure based on the stress during the rolling. In this study, therefore, a three-dimensional finite element method is applied to investigate the rolling stress of the work roll in the four-high rolling mill. A suitable chamfer geometry in the backup roll is discussed as well as the standard wear profile by considering those effects on the fatigue. Then, to evaluate the fatigue risk under compressive mean stress, the fatigue limit lines in the stress amplitude versus mean stress diagram are newly discussed. With the aid of previous experience in industries, the fatigue fracture risk is discussed by focusing on three critical points inside the work roll.
雑誌名
Fatigue & Fracture of Engineering Materials & Structures
巻
45
号
4
ページ
1065 - 1087
発行年
2022-01-19
出版者
John Wiley & Sons, Inc.
ISSN
1460-2695
DOI
https://doi.org/10.1111/ffe.13651
権利
This is the peer reviewed version of the following article: https://onlinelibrary.wiley.com/doi/10.1111/ffe.13651, which has been published in final form at https://doi.org/10.1111/ffe.13651. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
Fatigue failure risk evaluation of bimetallic rolls in four high hot rolling mills
ffe.13651.pdf
(2.24MB)
