The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2003
Filed:
Sep. 20, 1999
Nicolas Maguin, Montreuil, FR;
Yves Leclercq, L'Etang la Ville, FR;
Hervé Biausser, Paris, FR;
Alireza Arbab, Valenciennes, FR;
Vai Clecim, Courbevoie, FR;
Abstract
The invention relates to a process for rolling a metal product by successive passes into at least one roll stand associated with a calculation unit comprising a computer and a mathematical model for adjusting the rolling load applied by the clamping means. According to the invention, before each pass, the computer associated with the mathematical model determines a predictable variation value of the flow stress of the metal corresponding to the deformation to be realized in the pass considered, while taking into account the evolution, during the rolling operation, of the microcrystalline structure of the metal making up the product to be rolled, and the rolling load to be applied in order to achieve the requested reduction in thickness is calculated before each pass according to the value thus predicted for the flow stress and the evolution of the microcrystalline during the rolling operation.