Transactions of Materials and Heat Treatment

Title：Influence laws of geometric structure on twist springback for automobile typical parts of ultra-high-strength steel

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ClassificationCode：TG386. 3

year,vol(issue):pagenumber：2021,46(3):49-55

Abstract：

For A-pillar upper inner plate part, the influence law of geometric structure of part on the twist springback after forming was studied. Then, according to the design process of part, the A-pillar upper inner plate was divided into cross-section and longitudinal axis, and taking the structural parameters of cross-section and longitudinal axis as variables and the twist springback as the response, the response surface model was established to analyze the influences of various structural parameters on the twist springback. The results show that the straight line 1, straight line 3, angle 2 and angle 4 in the cross section have a significant effect on the twist springback, the twist springback increases with the increasing of the straight line1 and angle 2, the twist springback decreases first and then increases as the straight line 2 increases, the twist springback increases first and then decreases as the angle 4 increases, and the maximum and minimum values of twist springback are 0.215 and 0.050 respectively. In addition, the twist springback increases continuously with the increasing of the total length and the ratio of arc to straight line and the decreasing of radius in the longitudinal axis, and maximum and minimum values of twist springback are 0.199 and 0.073 respectively.

Funds：

国家自然科学基金资助项目（51775397）；国家重点研发计划项目（2019YFB1704501）；高等学校学科创新引智计划资助项目（B17034）；湖北省技术创新专项重大项目资助（2019AAA007）；武汉市科技成果转化专项（2019030703011511）

王俊杰（1995-），男，硕士研究生 E-mail：15172453692@163.com 通讯作者：胡志力（1983-），男，博士，副教授 E-mail：zhilihuhit@163.com

Reference：

[1]Baon P，, Andrzej, et al. Springback compensation for a vehicle′s steel body panel[J]. AIP Conference Proceedings, 2017.

[2]余万铨,胡志力,杨冰,等.某铝合金汽车发动机罩外板冲压成形工艺[J].锻压技术,2020，45(4):45-50.

Yu W Q, Hu Z L, Yang B, et al. Stamping process of automobile engine outer panel for aluminum alloy[J]. Forging & Stamping Technology, 2020, 45(4):45-50.

[3]李富柱,翟长盼,李伟,等.汽车车身构件冲压回弹研究现状[J].锻压技术,2018,43(2):1-8.

Li F Z, Zhai C P, Li W, et al. Research on status of stamping springback for autobody parts[J]. Forging & Stamping Technology, 2018, 43(2):1-8.

[4]Chetan P Nikhare. Prediction of springback in long channels[J]. Acta Metallurgica Sinica, 2015,(12):1525-1531.

[5]Li H, Sun G, Li G, et al. On twist springback in advanced highstrength steels[J]. Materials & Design, 2011，32(6):3272-3279.

[6]Xue X, Liao J, Vincze G, et al. Twist springback characteristics of dualphase steel sheet after nonaxisymmetric deep drawing[J]. International Journal of Material Forming, 2015, 10(2): 1-12.

[7]Xue X, Liao J, Vincze G, et al. Modelling and sensitivity analysis of twist springback in deep drawing of dualphase steel[J]. Materials & Design, 2016, 90(1):204-217.

[8]卢金火, 赵紫剑, 梁国贵. 轿车车身主断面设计方法[J]. 汽车技术, 2006，(9):9-13.

Lu J H, Zhao Z J, Liang G G. Design method of main section of passenger car body[J]. Automotive Technology, 2006,(9):9-13.

[9]胡金,温彤,张梦,等.基于响应面法的筋肋板辊轧成形工艺参数优化[J].锻压技术,2019,44(8):35-40.

Hu J, Wen T, Zhang M, et al. Optimization on rolling process parameters for rib stiffened plates based on respond surface method[J]. Forging & Stamping Technology, 2019, 44(8):35-40.

[10]Jordao H, Sousa A J, Carvalho M T. Optimization of wet shaking table process using response surface methodology applied to the separation of copper and aluminum from the fine fraction of shredder ELVs[J]. Waste Management, 2016, 48(11):366-373.

[11]Samuel O D, Okwu M O. Comparison of response surface methodology (RSM) and artificial neural network (ANN) in modelling of waste coconut oil ethyl esters production[J]. Energy Sources Part A Recovery Utilization and Environmental Effects, 2018,(1):1-13.

[12]姜天亮, 龚红英, 钱勇,等. 基于响应面法的U形件弯曲成形回弹优化[J]. 锻压技术, 2020,45(1):63-68.

Jiang T L, Gong H Y, Qian Y, et al. Optimization on bending springback of U-shaped parts based on response surface method[J]. Forging & Stamping Technology, 2020,45(1):63-68.

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