Design of Rolling Pass Schedule in Copper Thin Foil Cold Rolling According to Roll Crown of 6 High Mill

6단 압연롤 크라운을 고려한 동극박 냉간 압연 패스스케줄 설계

  • Published : 2008.11.01

Abstract

During the plate and foil cold rolling process, considerable values of the force of material pressure on the tool occur. These pressures cause the elastic deformation of the roll, thus changing the shape of the deformation legion. Rolled copper foils should be characterized by a good quality and light dimensional tolerances. Because of automation that is commonly implemented in flat product rolling mills, these products should meet the requirements of tightened tolerances, particularly strip thickness, and feature the greatest possible flatness. The shape of the roll gap is influenced by the elastic deformation of rolls parts of the rolling process affecter of the pressure force. However, to control roll deformation should be difficult. Because the foil thickness is very thin and the permissible deviations in the thickness of foil are small. In this paper, FE-simulation of roll deformation in thin foil cold roiling process is presented.

Keywords

References

  1. Furukawa, T. and Kawamoto, K., "The rolling characteristics of Copper Foil," J. of JSTP, Vol. 4, No. 27, pp. 203-212, 1963
  2. Sakamoto, N., Nishimura, K., Iwasaki, M. and Misonoh, K., "An analysis of strip shape in cold rolling of ultra thin steel strip," J. of JSPT, Vol. 23, No. 263, pp. 1230-1237, 1982
  3. Saeki, K. and Hashimoto, Y., "Speed Effects on the Cold Rolling of Thin Plate," J. of JSPT, Vol. 7, No. 63, pp. 183-192, 1966
  4. Wataru, S. and Shun-ichi, O., "Rolling Pressure Distribution in Thin Foil Rolling," J. of JSTP, Vol. 28, No. 321, pp. 1029-1034, 1987
  5. Kim, D. H., Kim, B. M. and Lee, Y., "Adjustment of Roll Gap for the Dimension Accuracy of Bar in Hot Bar in Hot Bar Rolling Process," International Journal Precision Engineering and Manufacturing, Vol. 4, No. 1, pp. 56-62, 2003
  6. Lange, K., "Handbook of metal forming," McGraw-Hill Book Company, Chapter 12, 1985
  7. Knapiński, M., "The numerical analysis of roll deflection during plate rolling," JMPT, Vol. 175, Issues 1-3, pp. 257-265, 2006 https://doi.org/10.1016/j.jmatprotec.2005.04.051
  8. Malik, S. A. and Grandhi, V. R., "A computational method to predict strip profile in rolling mills," JMPT, Vol. 206, Issues 1-3, pp. 263-274, 2008 https://doi.org/10.1016/j.jmatprotec.2007.12.026
  9. Roberts, W. L., "Cold rolling of steel," MARCEL DEKKER, INC., pp. 478-567, 1978
  10. Timoshenko, P. S. and Goodier, N. J., "Theory of elasticity," McGraw-Hill, pp. 65-164, 1934
  11. Fleck, A. N., Johnson, L. K., Mear, E. M. and Zhang, C. L., "Cold Rolling of Foil," Proc. Institution of Mechanical Engineers, Vol. 206, pp. 119-131, 1992
  12. Johnson, L. K., "Contact Mechanics," Cambridge University Press, pp. 320-339, 1985
  13. Le, H. R. and Sutcliffe, P. F. M., "Rolling of Thin Strip and Foil:Application of a Tribological Model for "Mixed" Lubrication," Journal of Tribology, Vol. 124, Issue 1, pp. 129-136, 2002 https://doi.org/10.1115/1.1402179