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http://dx.doi.org/10.3795/KSME-A.2011.35.9.977

Analytical and Numerical Investigation of Horizontal Force and Stable Position of Work Roll in Backup-Roll-Drive 4-High Cold-Rolling Mill  

Byon, Sang-Min (Dept. of Mechanical Engineering, Dong-A Univ.)
Lee, Jae-Hyeon (Dept. of Mechanical Engineering, Dong-A Univ.)
Park, Heung-Sik (Dept. of Mechanical Engineering, Dong-A Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.9, 2011 , pp. 977-982 More about this Journal
Abstract
The horizontal force acting on a work roll was examined. This force results from the contact force between the work roll and backup roll in a backup-roll-drive 4-high cold-rolling mill. This horizontal force bends the work roll horizontally and therefore exerts reciprocal action on the roll-gap contour. An analytical model for predicting the horizontal force acting on a work roll, which generates a mean value in the steady state, was presented. The material used for the analysis was high-silicon steel (about 3% Si). A three-dimensional finite element (FE) model was also employed to investigate the non-steady-state behavior of the horizontal force. Results showed that the horizontal force varied with the off-center distance between the work roll and backup roll. In addition, the optimal off-center distance was determined to minimize the horizontal force.
Keywords
Horizontal Force of Work Roll; Backup-Roll-Drive; Cold Rolling; Analytic Model; Finite Element Model;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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1 Bland, D. A. and Ford, H., 1948, "The Calculation of Roll Force and Torque in Cold Strip Rolling With Tension," Proc. Inst. Mech. Eng., Vol. 159, pp. 144-153.   DOI
2 Li, G. and Kobayashi, S., 1982, "Rigid Plastic Finite Element Analysis of Plane Strain Rolling," Trans. ASME, J. Engng. Ind., Vol. 104, pp. 55-63.   DOI
3 Lu, C. and Tieu, A. K., 2007, "Measurement of the Forward Slip in Cold Strip Rolling Using a High Speed Digital Camera," J. Mech. Sci. Tech., Vol. 21, pp. 1528-1533.   DOI   ScienceOn
4 Hilbert, H. G., Roemmen, H. J. and Boucke, K. E., 1976, "MKW Cold Mill - Rolling Silicon Steel Strip," Iron and Steel Engineer, Sept., pp. 25-31.
5 Chung, J. S., Byon, S. M., Kim, H. J. and Hwang, S. M., 2000, "Process Optimal Design in Metal Forming By Double Objective Genetic Algorithm," Trans. NAMRI/SME, Vol. 28, pp. 51-56.
6 Espenhahn, M. and Giermann, G., 1988, "Modernization of a Cold Rolling Mill for High-Alloy Si Strips," Metall. Plant Technol., Vol. 11, pp. 70-76.
7 Byon, S. M., Kim, S. I. and Lee, Y., 2008, "A Numerical Approach to Determine Flow Stress-Strain Curve of Strip and Friction Coefficient in Actual Cold Rolling Mill," J. Mater. Proc. Technol., Vol.201, pp. 106-111.   DOI   ScienceOn
8 Hitchcock, J., 1935, Roll Neck Bearing, ASME Research Publication, Appendix 1.
9 Ginzburg, V.B., 1989, Steel-Rolling Technology - Theory and Practice, Marcel Dekker Inc., New York and Basel.