الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 142 |  |  |
| | | from | 142 | | |
Abstract
An analysis of the deformation behavior was proposed for the slit rolling passes. The analysis represented a solution that was derived from an insight on the features of flange rolling technology. The analysis considered the rolling draft of slit pass to be a non-steady rolling state, and to be composed of three sequential deformation stages. Each stage was distinguished by its rolling draft conditions and the corresponding elongation and spread behaviors The analysis clarified the design parameters of slitting passes, by connecting the design parameters of both the pass profile and the rolled strip geometry. Accordingly, it provided a basis to improve the slit rolling performance and to diagnose the slit rolling troubles A Finite Element method (FEM), using ABAQUS commercial code, was employed to verify the proposed deformation behavior. An optimizing study was conducted on two different geometrical features of the rolled strip. They were tested and compared by proceeding a rolling simulation in the same pass profile and boundary conditions The FEM models were validated based on a comparison with available experimental data, where a good agreement was found. The deformation behavior was verified in the presented 3D plots. The comparison results show significant difference in Abstract ix the rolling power, and in the intensification of localized stresses between the two strips According to the FE results, a trial to produce strip geometrywhich has more efficient rolling kinetics, was conducted experimentally on the industrial scale. The preparation method employed the ‘groove-less edging’ technique. The trial succeeded in obtaining a commensurate shape profile to thekinetically, favored strip profile.