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A New Model for the Prediction of the Dog-Bone Profile in Edge Rolling

Title
A New Model for the Prediction of the Dog-Bone Profile in Edge Rolling
Authors
윤덕중
Date Issued
2012
Publisher
포항공과대학교
Abstract
Precision control of the width of slabs, plates and strips, is vital for product quality and production economy in steel mills. A common practice in the production line is to perform vertical rolling and reduce the width in the roughing mill. However, the formation of so called ‘dog-bone’ at the edge of the slab would affect the final width after horizontal rolling that follows. Therefore, it is essential to predict and control the dog-bone shape. In this paper we present a new model for the prediction of the dog-bone shape during vertical rolling in roughing mills. The model is developed on the basis of the minimum energy principle for a rigid-plastic material and a three-dimensional admissible velocity field. The predictions accuracy of the proposed model is examined via comparison with predictions from finite element simulation and also with experimental data.
URI
http://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001388224
http://oasis.postech.ac.kr/handle/2014.oak/1635
Article Type
Thesis
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