Transactions of Materials and Heat Treatment

Title：Test and prediction study of U-section channel in press bending springback process

Authors： WANG Da-yong FU Li-bin LI Wei LU Xing HUANG Yong-hong

Unit： Dalian JiaoTong University Qingdao Sifang Locomotive & Rolling Stock Co. Ltd. Dalian Locomotive and

KeyWords： U-section channel numerical simulation orthogonal test regression analysis

ClassificationCode：TG386.3

year,vol(issue):pagenumber：2011,36(1):140-143

Abstract：

The gradual cold-roll forming via press bending method for U-shaped section steel part was analyzed. A relatively accurate springback amount was obtained by using experiment and FEA. The results of finite element analysis verified its reliability. The orthogonal experiment was designed to analyze the factors which influence springback. Springback prediction model of U-shaped section steel bending by regression analysis was obtained. Mechanical properties of materials（σs/E），relative bending radius of the profile（R/H）and parameter of cross-section shape (W/H) were identified as the main factors which influence springback. It has a good reliability in production.

Funds：

Reference：

［1］李硕本.冲压工艺学[M]. 北京：机械工业出版社，1982.
［2］胡世光，陈鹤峥.板料冷压成形的工程解析[M].北京：北京航空航天大学出版社，2004.
［3］王岩，隋思涟，王爱青.数理统计与MATLAB工程数据分析[M].北京：清华大学出版社，2006.
［4］王大勇，李伟，陆兴，等. U型钢压弯的有限元分析与回弹预测[J].模具工业，2010，36（4）：19-22.
［5］宋江腾，臧勇，崔福龙，等.非对称型材压弯过程应变规律的有限元分析[J].机械设计与制造,2008,(9) :72-74.
［6］ Maker B N，Zhu X H．Input parameters for metal forming simulation using LS-DYNA[J]．Livermore Software Technology Corporation，2000，(4):43-46.
［7］陈毓勋．板材与型材弯曲回弹控制原理与方法[M]．北京：国防工业出版社，1990.
［8］谢晖.基于CAE仿真的冲压回弹影响因素研究[J].湖南大学学报，2003，(10):29-34.
［9］田继红，刘岩，邓玉智，等.板料成形中单元大小对回弹的影响研究[J].山西机械，2002，(9):32-34.
［10］ Annika Nilsson, Lars Melin, Claes Magnusson，et al. Finite-element simulation of V-die bending: a comparison with experimental results[J].Journal of Materials Processing Technology,1997，65: 52-28.
［11］宋黎，杨坚，黄天泽.板料弯曲成形的回弹分析与工程控制综述[J].锻压技术，1996，21(1):18-22."
［12］束德林.工程材料力学性能[M]. 北京：机械工业出版社，2003.

Service：

【This site has not yet opened Download Service】【Add Favorite】