型材无模多点柔性拉弯成形制件回弹

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英文篇名：Springback prediction on die-less multi-point flexible bending forming parts 作者：李义 ; 梁策 ; 于佳奇 ; 陈广义 ; 滕菲 ; 梁继才 ; 孙广平 英文作者：LI Yi;LIANG Ce;YU Jia-qi;CHEN Guang-yi;TENG Fei;LIANG Ji-cai;SUN Guang-ping;Key Laboratory of Automobile Materials,Ministry of Education,Jilin University;College of Materials Science and Engineering,Jilin University;School of Automotive Engineering,Dalian University of Technology;School of Mechanical and Vehicle Engineering,Changchun University;Roll Forging Institute,Jilin University; 关键词：材料合成与加工工艺 ; 铝合金型材 ; 三维拉弯 ; 回弹 ; 有限元仿真分析 英文关键词：material synthesis and processing technology;;aluminum alloy profiles;;three-dimensional stretch bending;;springback;;finite element simulation analysis 中文刊名：JLGY 英文刊名：Journal of Jilin University(Engineering and Technology Edition) 机构：吉林大学汽车材料教育部重点实验室;吉林大学材料科学与工程学院;大连理工大学汽车工程学院;长春大学机械与车辆工程学院;吉林大学辊锻工艺研究所; 出版日期：2018-06-07 09:32 出版单位：吉林大学学报(工学版) 年：2019 期：v.49;No.201 基金：国家自然科学基金项目(51675225);; 吉林省发展和改革委员会项目(2016C036);; 吉林省教育厅“十三五”科学技术项目(JJKH20180943KJ) 语种：中文; 页：JLGY201901023 页数：5 CN：01 ISSN：22-1341/T 分类号：192-196

摘要

通过有限元仿真分析预测预拉力对"T"型材构件多点柔性成形的回弹变形规律,并通过试验进一步验证了有限元模拟结果,本文回弹预测方法有效地缩短了实际生产调试时间,降低了生产成本。有限元模拟和试验结果表明:回弹量与弯曲变形量成正比,与预拉力成反比。
        In this paper,Finite Element(FE)simulation software is used to study the springback deformation curve in the case of pretension on the "T"profile in the flexible multi-point forming process.Then experiments are conducted and results confirm that the FE simulation can predict the trend of springback in the three-dimensional profile bending process.Therefore,FE simulation can save the production time and reducing experimental cost effectively.Simulation and experimental results show that the amount of the springback is proportional to the amount of bending deformation and inversely proportional to the pretension.

引文

[1]Welo T,Wider?e F.Precision bending of high-quality components for volume applications[J].Transactions of Nonferrous Metals Society of China,2010,20:2100-2110.
    [2]Tekiner Z.An experimental study on the examination of springback of sheet metals with several thicknesses and properties in bending dies[J].Journal of Materials Processing Technology,2004,145:109-117.
    [3]Kim S,Stelson K.Finite element method for the analysis of a material property identification algorithm for pressbrake bending[J].Journal of Engineering for Industry,1988,110:218-222.
    [4]El-Megharbel A,El-Domiaty A,Shaker M.Springback and residual stresses after stretch bending of workhardening sheet metal[J].Journal of Materials Processing Technology,1990,24:191-200.
    [5]Welo T,Granly B.A new adaptive bending method using closed loop feedback control[J].Transactions of Nonferrous Metals Society of China,2010,20(11):2111-2117.
    [6]Clausen A H,Hopperstad O S,Langseth M.Sensitivity of model parameters in stretch bending of aluminium extrusions[J].International Journal of Mechanical Sciences,2001,43(2):427-453.
    [7]Clausen A H, Hopperstad O S,Langseth M.Stretch bending of aluminium extrusions for car bumpers[J].Journal of Materials Processing Technology,2000,102(1):241-248.
    [8]Miller J E,Kyriakides S,Corona E.On bend-stretch forming of aluminum II:analysis[J].International Journal of Mechanical Sciences,2002,44(12):2587-2596.
    [9]王永军,陈华,王俊彪,等.8T转台式拉弯机数控系统改造设计与实现[J].机械科学与技术,2003,22(2):268-271.Wang Yong-jun,Chen Hua,Wang Jun-biao,et al.The design and development of a stretch bending former control system[J].Mechanical Science and Technology,2003,22(2):268-271.
    [10]杨旭东,王永军,孙凌逸,等.基于PLC的拉弯机控制系统设计[J].机床与液压,2004(1):12-14.Yang Xu-dong,Wang Yong-jun,Sun Ling-yi,et al.Design of control system of CNC stretch-wrap former based on PLC[J].Machine Tool&Hydraulics,2004(1):12-14.
    [11]刁可山,周贤宾,李晓星,等.铝合金AA6082(T5)挤压型材基本力学性能试验和成形极限图的建立[J].中国机械工程,2004,15(13):1202-1209.Diao Ke-shan,Zhou Xian-bin,Li Xiao-xing,et al.An investigation of material properties of aluminium extrusions 6082(T5)and the establishment of FLD[J].China Mechanical Engineering,2004,15(13):1202-1209.
    [12]刘纯国,李明哲,蔡中义,等.大型3维板类件多点闭环成形的研究[J].中国机械工程,2000,11(12):1326-1329.Liu Chun-guo,Li Ming-zhe,Cai Zhong-yi,et al.Research on multi-point closed-loop forming of 3D sheet metal parts[J].China Mechanical Engineering,2000,11(12):1326-1329.
    [13]高嵩,梁继才,陈广义,等.三维拉弯柔性成形装备中单元体快速调形技术[J].吉林大学学报:工学版,2014,44(5):1723-1728.Gao Song,Liang Ji-cai,Chen Guang-yi,et al.Rapid adjusting of fundamental units in process of flexible 3Dstretch-bending[J].Journal of Jilin University(Engineering and Technology Edition),2014,44(5):1723-1728.