Open AccessAnalysis of Fatigue Fracture and Strength Improvement of Backup Rolls
Author(s) -
Jiamin Zhang,
Xiaochen Wang,
Huaqiang Liu,
Quan Yang,
Dong Xu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/772/1/012068
Subject(s) - backup , structural engineering , finite element method , fracture (geology) , engineering , stress (linguistics) , safety factor , mechanical engineering , geotechnical engineering , linguistics , philosophy
As an important part of the cold rolling mill, the backup rolls are always in service under complicated stress conditions. Once the roll fails, it will bring huge economic losses. In this paper, the problem of fracture failure of the backup roll neck position in an 1150mm six-roll reversible cold rolling mill of a company is analyzed. The stress distribution of the barrels under working condition is calculated by the finite element software ABAQUS, and the stress value at the dangerous section of the backup roll is obtained. The fatigue strength safety factor of the backup roll is obtained by analytical calculation. Combined with the actual production situation, from the perspective of structure and size design, improved schemes can be proposed to improve the fatigue strength of the backup roll. This analysis can provide reference for related enterprises.