FE Study for Reducing Forming Forces and Flat End Areas of Cylindrical Shapes Obtained by the Roll-Bending Process
FE Study for Reducing Forming Forces and Flat End Areas of Cylindrical Shapes Obtained by the Roll-Bending Process作者机构：Mechanical Engineering Department Eeole de Technologie Supdrieure Montreal (Quebec) H3C 1K3 Canada
出 版 物：《Journal of Mechanics Engineering and Automation》 (机械工程与自动化（英文版）)
年 卷 期：2014年第4卷第6期
页 面：467-475页
学科分类：08[工学] 09[农学] 090203[农学-茶学] 0825[工学-航空宇航科学与技术] 0902[农学-园艺学]
主 题：弯曲过程 FE 形状 成形力 LS-DYNA软件 圆柱 ANSYS 敏感性分析
摘 要：A roll-bending process that minimizes the flat areas on the leading and trailing ends of formed plates will produce more accurate and easier assemble final shapes. There are several methods of minimizing flat areas, but they are costly or difficult to apply for thick plates. This study proposes a new, simple approach that reduces these flat areas. This approach includes moving the bottom roll slightly along the feeding direction and adjusting the bottom roll location. Sensitivity analyses were performed using a developed 3D dynamic FE (finite element) model of an asymmetrical roll-bending process in the Ansys/LS-Dyna software package. Simulations were validated by experiments run on an instrumented roll-bending machine. The FE results indicate that this new approach not only minimizes the flat areas but also reduces the forming forces.
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