Transactions of Materials and Heat Treatment

Title：Research on evaluation and compensation of stamping springback for automobile roof based on AUTOFORM

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ClassificationCode：TG386

year,vol(issue):pagenumber：2019,44(8):41-48

Abstract：

For the problem of large springback deviation between measuring data and simulation data in stamping process of drawing parts, taking the automobile roof as the research object, through the process analysis of the part, it was proposed to calculate the springback of each process stress release and the new springback of each process after drawing caused by closing the press body to produce the additional deformation during the presimulation analysis, and the amount of springback was simulated and evaluated accurately. At the same time, introducing symbolic compensation method in compensation strategy was proposed. Then, the springback compensation was achieved by the optimized compensation strategy, and the experimental verification was carried out based on the compensation data. The results show that the problem of springback instability of roof parts is effectively solved without modifying the die in the production site, and the dimensional auuracy is qualified. The experiment and simulation prediction results are consitent, and the maximum error is only 0.1 mm. It shows that the method proposed has important guiding significance for improving the authenticity of CAE simulation, improving the accuracy of reverse compensation and reducing the number of times for die repairing in the production site.

Funds：

2018年度湖北省教育厅科学研究计划(B2018333)

作者简介：孔敏（1991-），女，硕士，助教 E-mail：13207131768@163.com 通讯作者：胡伟（1990-），男，学士 E-mail：782802298@qq.com

Reference：

[1]葛泽培, 陈炜,李国强,等.车门防撞梁全工序仿真模拟及回弹补偿研究[J].锻压技术,2018,43(8):44-48.

Ge Z P, Chen W, Li G Q, et al. Research on simulation and springback compensation of the whole process of door crashproof beam[J]. Forging & Stamping Technology, 2018, 43 (8): 44-48.

[2]Choi J, Lee J, Bae G, et al. Evaluation of springback for DP980 S rail using anisotropic hardening models[J]. JOM, 2016, 68(7): 185-1857.

[3]张涛, 韩秀全,孙宾,等. 一种带有回弹补偿的钛合金钣金热成形工艺[J]. 塑性工程学报,2013,20 (4):71-74.

Zhang T, Han X Q, Sun B, et al. A hot forming process of titanium alloy sheet with springback compensation[J].Journal of Plasticity Engineering, 2013, 20(4):71-74.

[4]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.

[5]辛秀敏, 路平,江开勇,等.基于逆向工程技术的反求因子回弹补偿法[J].计算机集成制造系统, 2015, 21(6):1436-1441.

Xin X M, Lu P, Jiang K Y, et al. Reversing factor springback compensation method based on reverse engineering technology [J].Computer Integrated Manufacturing Systems, 2015, 21 (6):1436-1441.

[6]刘晓晶, 葛希军, 刘朋会, 等. 汽车中央通道冲压回弹及其补偿研究[J]. 材料科学与工艺, 2015, 23(4):36-41.

Liu X J, Ge X J, Liu P H, et al. Stamping springback and springback compensation of the automobile central channel[J]. Materials Science and Technology, 2015, 23(4):36-41.

[7]李贵, 崔赛赛，陈志平, 等.先进高强钢DP1000 地板中央通道的成形回弹及补偿研究[J].材料科学与工艺, 2018, 26(2):15-20.

Li G, Cui S S, Chen Z P, et al. The forming springback and compensation of floor panel tunnel of advanced high strength steel DP1000[J]. Materials Science and Technology, 2018, 26(2):15-20.

[8]Wang Z, Hu Q, Yan J, et al. Springback prediction and compensation for the third generation of UHSS stamping based on a new kinematic hardening model and inertia relief approach[J]. The International Journal of Advanced Manufacturing Technology, 2017, 90(1-4): 875-885.

[9]庄京彪, 刘迪辉, 李光耀. 基于包辛格效应的回弹仿真分析[J]. 机械工程学报, 2013, 49（22）:84-90.

Zhuang J B, Liu D H, Li G Y. Analysis of springback simulation based on bauschinger effect[J]. Journal of Mechanical Engineering, 2013, 49( 22) :84-90.

[10]Sumikawa S, Ishiwatari A, Hiramoto J, et al. Improvement of springback prediction accuracy using material model considering elastoplastic anisotropy and bauschinger effect[J]. Journal of Materials Processing Technology，2016, 230(645):1-7.

[11]谢晖, 沈云飞, 王杭燕. 基于改进响应面模型的冲压回弹工艺稳健性优化[J]. 塑性工程学报, 2018, 25 (4): 26-32.

Xie H, Shen Y F, Wang H Y. Robustness optimization of stamping springback based on improved response surface model[J]. Journal of Plasticity Engineering, 2018, 25(4):26-32.

[12]卓德志, 谢延敏, 熊文诚, 等.基于偏差调节法的蠕变时效成形回弹补偿研究[J]. 工程设计学报, 2016, 23(6):553-557.

Zhuo D Z, Xie Y M, Xiong W C,et al. Study on springback compensation of creep aging forming based on deviation adjustment method [J]. Journal of Engineering Design, 2016, 23(6): 553-557.

[13]龚志辉, 兰典, 钟剑, 等. 汽车覆盖件回弹逆向补偿过程中回弹量的精确计算[J]. 锻压技术, 2017, 42(2):21-27.

Gong Z H, Lan D, Zhong J, et al. Accurate calculation of springback in reverse compensation process of automobile panel springback [J]. Forging & Stamping Technology, 2017, 42 (2): 21-27.

[14]涂小文. 基于AutoForm软件的回弹计算及补偿技术揭秘：上册[M]. 武汉:湖北科学技术出版社, 2016.

Tu X W. Rebound Calculation and Compensation Technology Revelation Based on AutoForm Software：Volume 1[M]. Wuhan: Hubei Science and Technology Publishing House, 2016.

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