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| Deformation Uniformity of Cold-Rolled Q235 Steel Rebar by FEM in Bending and Rolling Processes |
| SUI Feng-li1,CHEN Qi-wei1,ZHU Guo-hui1,LIU Bao-dong2 |
1. Anhui Key Laboratory of Materials and Processing, School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, Anhui, China
2. Dongyang Steel Making Co Ltd, Shenyang 110026, Liaoning, China |
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Abstract An analytic model based on ANSYS/LS-DYNA has been developed on the cold rolling process for Q235 steel rebar with 12 mm in diameter. The elastic-plastic finite element method (FEM) and the cold deformation resistance model of Q235 steel were adopted in this model. Deformation uniformity of the final product has been analyzed using this model. The results indicate that the uniformity of the final product is obtained only as the centerline of the bending rolls is vertical to the centerline of the driven roll and parallel to the centerline of the drive roll in the whole rolling process. Besides, the number of the bending rolls must even realize the continuous bending and reverse bending process. Also, the number of the bending rolls must match the deformation degree of the workpiece in the cold rolling process. The validity of this finite element model was verified by the size and distribution of grains from the billet to the rebar in a practical cold rolling process.
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Received: 19 May 2011
Published: 28 August 2012
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Corresponding Authors:
Feng-li SUI
E-mail: fenglisui@21cn.com
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2012, Vol. 19 
