3D FEM analysis of strip shape during multi-pass rolling in a 6-high CVC cold rolling mill

A 3D elastic–plastic finite element method (FEM) model of cold strip rolling for 6-high continuous variable crown (CVC) control rolling mill was developed. This model considers the boundary conditions such as accurate CVC curves, total rolling forces, total bending forces and roll shifting values. T...

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Bibliographic Details
Published inInternational journal of advanced manufacturing technology Vol. 74; no. 9-12; pp. 1733 - 1745
Main Authors Linghu, Kezhi, Jiang, Zhengyi, Zhao, Jingwei, Li, Fei, Wei, Dongbin, Xu, Jianzhong, Zhang, Xiaoming, Zhao, Xianming
Format Journal Article
LanguageEnglish
Published London Springer London 01.10.2014
Springer Nature B.V
Subjects
Boundary conditions
CAE) and Design
Cold
Cold rolling mills
Cold strip mills
Computer simulation
Computer-Aided Engineering (CAD
Continuity (mathematics)
Engineering
Errors
Finite element method
Industrial and Production Engineering
Iterative methods
Mathematical analysis
Mathematical models
Mechanical Engineering
Media Management
Original Article
Roll bending
Rolling mills
Schedules
Steel industry
Strip
Cold rolling
Continuous variable crown
6-High rolling mill
Finite element
Flatness
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Summary:A 3D elastic–plastic finite element method (FEM) model of cold strip rolling for 6-high continuous variable crown (CVC) control rolling mill was developed. This model considers the boundary conditions such as accurate CVC curves, total rolling forces, total bending forces and roll shifting values. The rolling force distributions were obtained by the internal iteration processes instead of being treated as model boundary conditions. The calculated error has been significantly reduced by the developed model. Based on the rolling schedule data from a 1,850-mm CVC cold rolling mill, the absolute error between the simulated results and the actual values is obtained to be less than 10 μm and relative error is less than 1 %. The simulated results are in good agreement with the measured data. The developed model is significant in investigating the flatness control capability of the 6-high CVC cold rolling mill in terms of work roll bending forces, intermediate roll bending forces and intermediate roll shifting values.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-014-6069-z