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针对高强钢制件冲压成形后的回弹问题，采用Dynaform有限元分析软件对某汽车前防撞梁成形过程进行了数值模拟，研究了其回弹规律并对回弹进行了控制。采用正交试验法研究了压边力、冲压速度、摩擦因数和模具间隙对回弹的影响，获得最优工艺参数优化组合为：压边力为1300 kN、摩擦因数为0.17、模具间隙为1.05t、冲压速度为1000 mm·s-1。对防撞梁模具进行了回弹补偿，经过4次迭代补偿，将前防撞梁的最大回弹量降至0.46 mm。以补偿后的模具型面进行实际冲压试验，得到了成形结果良好的前防撞梁制件，实际最大回弹量为0.5 mm,满足制件的回弹要求，实际回弹值与模拟回弹数据误差为8.7%,证明了本次有限元模拟分析的可行性和准确性。
Abstract：Aiming at the springback problem of high strength steel parts after stamping forming, the forming process of the front anti-collision beam of an automobile was numerically simulated by Dynaform finite element analysis software, and the springback law was studied and the springback was controlled. The effects of blank holder force, stamping speed, friction factor and die clearance on springback were studied by orthogonal tests. The optimal combination of process parameters was obtained as follows: blank holder force of 1300 kN, friction factor of 0.17, die clearance of 1.05t, stamping speed of 1000 mm·s-1. The springback compensation of front anti-collision beam die was carried out, and after 4 iterations of compensation, the maximum springback amount of front anti-collision beam was reduced to 0.46 mm. The actual stamping test was carried out with the compensated die surface, and the front anti-collision beam parts with good forming results were obtained. The actual maximum springback amount value is 0.5 mm, which meets the springback requirements of the parts, and the error between the actual springback value and the simulated springback data is 8.7%. The feasibility and accuracy of the finite element simulation analysis were verified.
[1] 宋振华.新能源汽车应用分析[J].科技风，2021,(3):13-14.SONG Zhenhua.Application analysis of new energy vehicles[J].Technology Wind,2021,(3):13-14.
[2] 陈坤，蔡林，高丰，等.新能源汽车轻量化途径及其评价[J].时代汽车，2021,(11):112-113.CHEN Kun,CAI Lin,GAO Feng,et al.New energy vehicle lightweight approach and its evaluation[J].Auto Time,2021,(11):112-113.
[3] 王帅，孙洋.新能源汽车轻量化技术路线和应用策略[J].汽车实用技术，2019,(10):38-40,57.WANG Shuai,SUN Yang.New energy vehicle lightweight technology route and application strategy[J].Automobile Applied Technology,2019,(10):38-40,57.
[4] 危海烟，吴朝晖，董瑞强.防撞梁在汽车碰撞中的性能要求及评估方法研究[J].机电工程技术，2019,48(6):120-123,162.WEI Haiyan,WU Zhaohui,DONG Ruiqiang.Research on impact beam performance during vehicle impact and assessment method[J].Mechanical & Electrical Engineering Technology,2019,48(6):120-123,162.
[5] 邓利军，王书贤，杨芳庆.汽车前防撞梁的耐撞性与轻量化优化设计[J].现代制造工程，2021,(8):64-69.DENG Lijun,WANG Shuxian,YANG Fangqing.Crashworthiness and lightweight optimization design for vehicle front anti-collision beam [J].Modern Manufacturing Engineering,2021,(8):64-69.
[6] SAFAEI M,WAELE D.Finite element simulation of springback in TRIP 780 advanced high strength steel[J].Sustainable Construction & Design,2010,1(1):151-156.
[7] TANG L,WANG H,LI G Y.Advanced high strength steel springback optimization by projection-based heuristic global search algorithm[J].Materials & Design,2013,43(1):426-437.
[8] LEE E M,SHIM D S,SON J Y,et al.Study on design of progressive dies for manufacture of automobile structural member using DP980 advanced high strength steel[J].Journal of Mechanical Science and Technology,2016,30(2):853-864.
[9] 张恒，江庆顺，张玉成.某车型高强板纵梁回弹问题及整改措施[J].模具工业，2020,46(3):29-33.ZHANG Heng,JIANG Qingshun,ZHANG Yucheng.Solutions for springback of high strength plate longitudinal beam[J].Die & Mould Industry,2020,46 (3):29-33.
[10] 王俊杰，张建，袁志鹏，等.汽车典型超高强钢零件几何结构对扭转回弹的影响规律[J].锻压技术，2021,46(3):49-55.WANG Junjie,ZHANG Jian,YUAN Zhipeng,et al.Influence of geometric structure of typical ultra-high strength steel parts on torsional springback [J].Forging & Stamping Technology,2021,46 (3):49-55.
[11] WANG D,ZHANG S,WANG C,et al.Structure-material-performance integration lightweight optimisation design for frontal bumper system[J].International Journal of Crashworthiness,2018,23(3/4):311-327.
[12] 王妤，王哲，张雄飞，等.汽车侧围外板回弹补偿及尺寸精度控制[J].汽车工艺与材料，2022,(2):1-7.WANG Yu,WANG Zhe,ZHANG Xiongfei,et al.Springback compensation and dimensional accuracy control of automobile side panel [J].Automobile Technology & Material,2022,(2):1-7.
[13] 赵坤民，高岩，赵德望，等.汽车用大型复杂冲压件拉延回弹仿真[J].塑性工程学报，2021,28(12):12-20.ZHAO Kunmin,GAO Yan,ZHAO Dewang,et al.Drawing springback simulation of large complex stamping part for automobile[J].Journal of Plasticity Engineering,2021,28(12):12-20.
[14] BARLAT F,RICHMOND O.Prediction of tricomponent plane stress yield surfaces and associated flow and failure behavior of strongly textured fcc polycrystalline sheets[J].Materials Science and Engineering,Materials Science and Engineering,1987,95:15-29.
[15] 熊文韬，谢三山，黄兆飞，等.基于神经网络遗传算法函数寻优与回弹补偿技术的某型汽车前幅拉延成形优化[J].塑性工程学报，2020,27(6):38-45.XIONG Wentao,XIE Sanshan,HUANG Zhaofei,et al.Optimization of drawing forming for front panel of an automobile based on neural network genetic algorithm function optimization and SCP technology[J].Journal of Plasticity Engineering,2020,27(6):38-45.
[16] 熊文韬，辜慧莲，江思描.汽车顶板拉深成形回弹分析及补偿的研究[J].模具工业，2019,45(6):9-13.XIONG Wentao,GU Huilian,JIANG Simiao.Research on springback analysis and compensation of drawing forming for roof panel[J].Die & Mould Industry,2019,45(6):9-13.
[17] 王东涛，谢延敏，郭元恒，等.基于Kriging模型的高强钢成形回弹工艺优化和模面补偿研究[J].锻压技术，2021,46(10):62-69.WANG Dongtao,XIE Yanmin,GUO Yuanheng,et al.Springback process optimization and die surface compensation of high strength steel based on Kriging model[J].Forging & Stamping Technology,2021,46 (10):62-69.
基本信息:
中图分类号:U466;TG386
引用信息:
[1]闫华军,邢博,张双杰,等.基于Dynaform的前防撞梁回弹分析及模具补偿研究[J].塑性工程学报,2023,30(08):35-41.
基金信息:
河北省自然科学基金资助项目(E2020208044; E2021208025); 河北省高等学校科学技术研究项目(ZD2022028)
2023-08-25
2023-08-25
2023-08-25