Transactions of Materials and Heat Treatment

Title：Formability stiffness improvement of shallowdrawing small-curvature car cover panel based on numerical simulation

Authors： SHI La-mei1 WANG Lei-gang1 ZHANG-Yue2

Unit： 1.School of Materials Science and Technology Jiangsu University Zhenjiang 212012 China 2.Yangzhou Hongyun Vehicle Industry Co. Ltd. Yangzhou 225200 China

KeyWords： shallow drawing small curvature stiffness numerical simulation orthogonal test

ClassificationCode：TG315.2

year,vol(issue):pagenumber：2012,37(6):162-166

Abstract：

Aiming at the lack of rigidity caused by deficient drawing and small plastic deformation of the shallowdrawing smallcurvature coverage during the forming process, taking rear door of typical small curvature coverage of automobile body panel as an example, the drawing die was designed with appropriate addendum and binder surface, and the simulation analysis of the drawing was conducted by Autoform. According to the simulation results, using orthogonal test， the size of the blank holding force, drawbead and coefficient of friction were optimized，which solved the lack of stiffness and small plastic deformation of the cover during the forming process.

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Reference：

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