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TECHNICAL PAPERS

An Investigation of the Effect of Speeds of Work Rolls on Rolling Strip

[+] Author and Article Information
Zone-Ching Lin, Y. C. Cheng

Department of Mechanical Engineering, National Taiwan Institute of Technology, 43, Keelung Rd., Section 4, Taipei, Taiwan, 10772, R.O.C.

J. Eng. Mater. Technol 117(3), 341-346 (Jul 01, 1995) (6 pages) doi:10.1115/1.2804549 History: Received May 19, 1993; Revised November 04, 1994; Online November 27, 2007

Abstract

The paper is an investigation of strip curvature caused by the different speeds between the upper work roll and the lower work roll in the rolling process for an aluminum strip. At the same time, we analyzed the variations in the temperature field and strain field, and used a method of speeds variation of the upper and lower work rolls to calibrate the deformation curvature caused by the coolant condition in the hot rolling process. Based on the large deformation-large strain theory, and by means of the Updated Lagrangean Formulation (ULF) and increment theory, a coupled thermoelastic-plastic analysis model for hot rolling process is thus constructed. At the same time the finite difference method was also used to solve the transient heat transfer equation. Finally, the numerical analysis method developed in this study was employed to analyze the changes in the aluminum strip’s temperature and other changes during rolling. In addition, the average rolling force obtained from the simulation was compared with that from the experiments. It verified that the model in this study is reasonable.

Copyright © 1995 by The American Society of Mechanical Engineers
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