4.6 Article

Influence mechanism of rolling force on strip shape during tandem hot rolling using a novel 3D multi-stand coupled thermo-mechanical FE model

期刊

JOURNAL OF MANUFACTURING PROCESSES
卷 81, 期 -, 页码 505-521

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.jmapro.2022.07.025

关键词

Lateral metal flow; 3D multi-stand FE model; Strip shape; Rolling force; Strip plastic rigidity; Tandem hot rolling

资金

  1. [333002572]

向作者/读者索取更多资源

This study proposes a novel 3D multi-stand coupled thermo-mechanical finite element model to investigate the influence of rolling force on strip shape during tandem hot rolling. It was found that the rolling force increases strip crown, but the regulation efficiency decreases with the increase of stand. Additionally, lateral metal flow and strip plastic rigidity have a coupled effect on the regulation efficiency of rolling force on strip flatness.
During tandem hot rolling (THR), the rolling force plays an important role in strip shape control, but the in-fluence mechanism of the rolling force on the strip shape is still currently unclear. This paper proposes a novel 3D multi-stand coupled thermo-mechanical finite element (FE) model for the THR developed employing a seg-mentation modelling strategy and data transfer technologies. This developed FE model has been validated by industrial experiments. Besides, the effects of rolling force on the strip shape (including strip crown and flatness) in the THR have been quantitatively studied. Results show that the strip crown increases with the rolling force at each stand, while the regulation efficiency of rolling force on the strip crown decreases continuously from (Finish stand 1) F1 to (Finish stand 7) F7, which is attributed to the significant increase in strip plastic rigidity from F1 to F7. Furthermore, lateral metal flow and strip plastic rigidity have a coupled effect on the regulation efficiency of rolling force on the strip flatness; more precisely, the regulation efficiency is mainly affected by the lateral metal flow in the upstream stand, while it is mainly influenced by the strip plastic rigidity in the downstream stand. These findings not only throw light on the influence mechanism of rolling force on the strip shape, but also offer a way to control and improve the strip shape by employing reasonable rolling force during industrial production.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据