Title: Establishment of models for plan view pattern control in heavy plate rolling process based on 3-D FEM simulation

Authors: Jinhua Ruan; Liwen Zhang; Sendong Gu; Jianlin Zhang; Wenbin He; Shaohui Chen

Addresses: School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, Liaoning, China ' School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, Liaoning, China ' School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, Liaoning, China ' School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, Liaoning, China ' Jiangsu Shagang Group Co, Ltd, Jinfeng 215625, Zhangjiagang, Jiangsu, China ' Jiangsu Shagang Group Co, Ltd, Jinfeng 215625, Zhangjiagang, Jiangsu, China

Abstract: Basing on a 5 m heavy plate mill, a three-dimensional (3-D) rigid-plastic thermo-mechanical finite element (FE) model was developed to investigate plate plan view pattern (PVP) during hot rolling process. The vertical-horizontal (V-H) rolling was employed to improve plate PVP by preventing width spread. Basing on the FE simulation results of different V-H rolling processes, the plate edging model with short stroke control (SSC) was established with the aid of an artificial neural network (ANN). The compensation rolling was adopted to improve plate PVP by decreasing plate end convexity. The compensation rolling model was established on the basis of the plate PVP prediction model which was formulated by regression analysis of the simulation results of conventional rolling processes with different broadside rolling ratios. Simulation results showed that optimal combination of V-H rolling and compensation rolling can improve the plate PVP to a large extent.

Keywords: heavy plate rolling; 3D modelling; FEM; finite element method; simulation; plate PVP control; plate plan view pattern; V-H rolling; short stroke control; SSC; artificial neural networks; ANNs; regression analysis; plate edging models; compensation rolling models; rigid plastic thermo-mechanical models.

DOI: 10.1504/IJMPT.2013.058957

International Journal of Materials and Product Technology, 2013 Vol.47 No.1/2/3/4, pp.103 - 125

Received: 16 Jan 2013
Accepted: 20 Aug 2013
Published online: 28 Jun 2014 *

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