| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
A Fast Computational Model for the Local Stress Distribution and Mechanical and Thermal Work Roll Deformations with Effects on Strip Profile and Flatness during Hot Rolling of Strip in Four-high Mills |
| Author(s) |
Christian Overhagen |
| On-Site Speaker (Planned) |
Christian Overhagen |
| Abstract Scope |
A fast model is presented for the three-dimensional stress and roll force distribution along the strip width. This local data is used to calculate the 3D deformation of the work roll barrel by flattening and deflection using a combined analytical and finite element procedure. Detailed information about the work roll deformation can therefore be obtained because the model does not rely on a constant roll force. The local strip and work roll temperatures are calculated by numerical solution of the heat equation and the evolution of thermal roll crown is calculated for a given rolling campaign. The strip shape is found by intersection of the deformed roll with the initial strip. An upper-bound technique is applied for the resulting strip flatness. Typical methods of profile and flatness adjustment (roll crown, roll bending, zonal roll cooling, CVC) are discussed with effects on strip profile and flatness. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |