Influences of thermal crown and wear crown of work roll on strip shape in tandem cold rolling using a novel 3D multi-pass FE model

IF 1.9 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pub Date : 2023-07-31 DOI:10.1177/09544054231189763

Lianjie Li, Haibo Xie, Tao Zhang, Di Pan, Tianwu Liu, Xingsheng Li, Xu Liu, Enrui Wang, Hongqiang Liu, Li Sun, Zhengyi Jiang

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Abstract

Thermal crown and wear crown of work roll (TWW) are the main interfering factors of loaded roll gap profile in tandem cold rolling (TCR). However, the effect of TWW on the strip shape is not well understood. This paper presents a quantitative study about the effect of TWW on the strip crown and strip flatness based on a novel 3D multi-pass elastic-plastic finite element (EPFE) model that has been validated by industrial trials in the TCR. The results show that the thermal crown introduces the centre wave and quarter wave, while the wear crown brings in the edge wave and edge-centre coupled wave; the thermal crown has a larger influence efficiency on the quadratic strip shape than the wear crown does, while the wear crown exerts a larger influence efficiency on the quartic strip shape than the thermal crown does. In addition, the influence efficiency of TWW on the strip crown decreases nonlinearly with an increase in strip plastic rigidity from Pass 1 (P1) to Pass 5 (P5). This is the first scientific report on the link between the strip plastic rigidity and the effect of TWW on the strip crown, affording the mathematical models for predicting the influence efficiency of TWW based on the strip plastic rigidity at each pass.

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采用一种新颖的三维多道次冷连轧工作辊热凸度和磨损凸度对板形的影响

工作辊的热凸度和磨损凸度是影响冷连轧中载辊间隙轮廓的主要因素。然而，TWW对带材形状的影响尚不清楚。本文基于一种新颖的三维多道次弹塑性有限元(EPFE)模型，对TWW对带钢凸度和板形的影响进行了定量研究，该模型已在TCR上进行了工业试验验证。结果表明:热冠引入中心波和四分之一波，磨损冠引入边缘波和边缘-中心耦合波;热冠对二次型带钢形状的影响效率大于磨损冠，而磨损冠对四次型带钢形状的影响效率大于热冠。从第1道次(P1)到第5道次(P5)， TWW对带钢冠度的影响效率随带钢塑性刚度的增加呈非线性降低。本文首次科学报道了行波水对带钢钢冠影响与带钢塑性刚度之间的关系，提出了基于各道次行波水对带钢钢冠影响效率的数学模型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 工程技术-工程：机械

CiteScore

5.10

自引率

30.80%

发文量

167

审稿时长

5.1 months

期刊介绍： Manufacturing industries throughout the world are changing very rapidly. New concepts and methods are being developed and exploited to enable efficient and effective manufacturing. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing. The aim of the Journal of Engineering Manufacture is to provide a focus for these developments in engineering manufacture by publishing original papers and review papers covering technological and scientific research, developments and management implementation in manufacturing. This journal is also peer reviewed. Contributions are welcomed in the broad areas of manufacturing processes, manufacturing technology and factory automation, digital manufacturing, design and manufacturing systems including management relevant to engineering manufacture. Of particular interest at the present time would be papers concerned with digital manufacturing, metrology enabled manufacturing, smart factory, additive manufacturing and composites as well as specialist manufacturing fields like nanotechnology, sustainable & clean manufacturing and bio-manufacturing. Articles may be Research Papers, Reviews, Technical Notes, or Short Communications.