Investigation and Numerical Modeling of the Process of Cold Rolling HSLA Steels

Abstract:

Considering the problems and details of modeling process of cold rolling, it was constructed a theoretical model of deformation area based on a set of equations, which were practical testing. The model is based on cold-rolled numerical solution of differential equations of forces equilibrium in the deformation area by Karman. In the model there are included modules for calculating strip temperature and strip gage at the exit from the stand, considering elastic recovery of the strip. For adaptation of the equations to the specific conditions of cold rolling of HSLA steels in the continuous five stand mill 2030 and assess the deviation of calculated data from the actual, a procedure of correction for hardening curve of rolled steel has been developed. The model allows defining the energy-power parameters of rolling: average unit rolling force, the full force of rolling, rolling moment, rolling force, an average temperature of strip at the inlet and outlet of each of the mill stands, steel hardening curve when rolling. The model is implemented as software using object-oriented approach in the language of C++ Builder.

• Periodical: Materials Science Forum (Volumes 704-705)
• Pages: 832-841
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.704-705.832
• Online since: December 2011
• Authors: Igor Mazur, Aleksandr P. Dolmatov, Sergey S. Borisov
• Keywords: Cold Rolling, Curve of Hardening, High-Strength Light-Alloy Steel, Mathematical Models, Numerical Differentiation, Program Application, Temperature of a Strip

References

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