The flatness of leveled plate is settled by residual stress. According to stress distribution simulated by FEM software ANSYS/LS-DYNA, the plate can be divided into non-steady region and steady region. The nonsteady region is composed of four zones, two of which are about half of leveling roller pitch at leading and end edges and other two are about 10% of the width at lateral edges. The steady region is the rest part enclosed by the non-steady regions. It is helpful to improve the leveling process by analyzing forming mechanism of each region and selecting suitable processes settings.
参考文献
| [1] | ZOU Jia-xiang.Rolling Machine[M].北京:冶金工业出版社,2000 |
| [2] | CUI Fu.Leveling Theory and Machine[M].北京:冶金工业出版社,2002 |
| [3] | Fumio Hibino .The Practical Formula for Leveling Strain in a Roller Leveler (in Japanese)[J].Journal of the Japan Society for Technology of Plasticity,1990,31(349):208-212. |
| [4] | Tokutatk Tani.Effect of 3-Dimensional Deformation of Thick Plate on Roller-Leveling Process by FEM (in Japanese)[J].CAMP-ISIJ,1999(12):1092. |
| [5] | Tokutatk Tani.Stress Analysis in Roller-Leveling Process Using Solid Elements and Shell Elements[J].CAMP-ISIJ,2000(13):352. |
| [6] | Shogo Tomita;Masahisa Fujikake;Yoneaki Fujita et al.Analysis of Roll Straightening and Cooling of Thick Plates (in Japanese)[J].Journal of the Japan Society for Technology of Plasticity,1997,38(440):809-813. |
| [7] | Kee-cheol PARK;Sang-Moo HWANG .Development of a Finite Element Analysis Program for Roller Leveling and Application for Removing Blanking Bow Defects of Thin Steel Sheet[J].ISIJ International,2002(9):990-999. |
| [8] | Morris J W;Hardy S J;Lees A W et al.Formation of Residual Stresses Owing to Tension Leveling of Cold Rolled Strip[J].Ironmaking and Steelmaking,2001,28(01):44-52. |
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