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http://dx.doi.org/10.5228/KSTP.2014.23.3.139

A New Model for Predicting Width Spread in a Roughing Mill - Part I: Application to Dog-bone Shaped Inlet Cross  

Lee, D.H. (Department of Mechanical Engineering, POSTECH)
Lee, K.B. (Department of Mechanical Engineering, POSTECH)
Hwang, S.M. (Department of Mechanical Engineering, POSTECH)
Publication Information
Transactions of Materials Processing / v.23, no.3, 2014 , pp. 139-144 More about this Journal
Abstract
In the current study, we present a new model for predicting width spread of a slab with a dog-bone shaped cross section during rolling in the roughing train of a hot strip mill. The approach is based on the extremum principle for a rigid plastic material and a three dimensional admissible velocity field. The upper bound theorem is used for calculating the width spread of the slab. The prediction accuracy of the proposed model is examined through comparison with the predictions from 3-D finite element (FE) process simulations.
Keywords
Width Spread; Roughing Mill; Extremum Principle; Admissible Velocity Field; Finite Element Method; Flat Rolling; Dog-bone;
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