Transactions of Materials and Heat Treatment

Title：Comparative study on stamping negative angle in fuel tank strap forming

Authors： Liu Hua Lin Junyi Jiang Kaiyong Liu Hongsheng

Unit： Huaqiao University

KeyWords： springback stamping negative angle Ushaped part bottom surface arc elastic correction bending

ClassificationCode：TG386

year,vol(issue):pagenumber：2018,43(6):15-19

Abstract：

The fuel tank strap is a typical Ushaped stamping part, and its section line is connected with multiple curves of large curvature radius, so the springback is obvious after stamping. In order to solve stamping negative angle caused by springback, the dies were designed respectively by bottom surface arc method and elastic correction bending method, and corresponding experiments were conducted. Then, the stamping negative angle problems were well solved by analyzing these two methods. Therefore, the former was designed with complex structure, high manufacturing cost and tedious calculation, and the latter was designed with simple structure and the elastic parts could be flexibly changed. Meanwhile, it was found that the former caused a more complex form of springback than that of the latter. Thus, it is suggested that the elastic correction bending method is preferred to solve stamping negative angle. In addition, the rapid comparison and evaluation of each stamping negative angle were realized by threedimensional scanning technology.

Funds：

福建省引导性项目（2017H0019）；福建省教育厅项目（JA13018）；中央高校基本科研业务费专项基金资助项（10QZR11）；泉州市科技计划项目（2015Z127）

刘华（1977-），男，硕士，讲师；Email：liuhua@hqu.edu.cn

Reference：

［1］林忠钦, 刘罡, 李淑慧,等. 应用正交试验设计提高U形件的成形精度
［J］. 机械工程学报, 2002, 38(3):83-89.

Lin Z Q, Liu G, Li S H, et al. Application orthogonal experiment design in increasing dimensional accuracy of Ushaped parts
［J］．Chinese Journal of Mechanical Engineering，2002，38 (3)：83-89.

［2］杨雪春，董懿琼，彭伟，等．U形件回弹控制模具补偿法的研究
［J］．锻压技术，2009，34(1)：42-46．

Yang X C, Dong Y Q, Peng W，et al. Research on die compensation method based on springback control of Ushaped part
［J］. Forging & Stamping Technology, 2009，34(1)：42-46．

［3］阳湘安，阮锋. 模面几何修正的回弹补偿方向分析
［J］．塑性工程学报，2010，17（2）:6-10.

Yang X A, Ruan F. Analysis on springback compensation direction for dieface adjustment
［J］. Journal of Plasticity Engineering,2010，17（2）:6-10.

［4］Cheng H S, Cao J, Xia Z C. An accelerated springback compensation method
［J］. International Journal of Mechanical Sciences, 2007, 49(3):267-279.

［5］龚志辉，汪日超，杨继涛，等. 基于等弧长的U形件回弹补偿技术研究
［J］．中国机械工程，2014，25(4)：550-554．

Gong Z H, Wang R C, Yang J T, et al. Research on springback compensation technology of Ushaped parts based on equal arc length
［J］．Chinese Journal of Mechanical Engineering，2014，25(4)：550-554．

［6］Lingbeek R, Huétink J, Ohnimus S, et al. The development of a finite elements based springback compensation tool for sheet metal products
［J］. Journal of Materials Processing Technology, 2005, 169(1):115-125.

［7］沈洪喆,朱兴元,石文华.汽车踏板横梁翻边过程中的回弹预测
［J］.锻压技术，2017，42(11):42-46.

Shen H Z，Zhu X Y，Shi W H. Springback prediction of automobile pedal beam during flanging process
［J］. Forging & Stamping Technology，2017，42(11):42-46.

［8］Dutton T， Edwards R，Blowey A．Tool design for a high strength steel side impact beam with springback compensation
［A］．5th European LSDYNA Users′ Conference
［C］.

England:Birmingham，2005.

［9］Ma N, Umezu Y, Watanabe Y, et al. Springback prediction by YoshidaUemori model and compensation of tool surface using JSTAMP
［A］．Numisheet 2008
［C］. Switzerland:Interlakeen,2008.

［10］Lee M G，Kim C，Pavlina E J，et al．Advances in sheet formingmaterials modeling，numerical simulation, and press technologies
［J］．Journal of Manufacturing Science ＆ Engineering，2011，133(6)：1001-1012.

［11］聂昕，申丹凤．高强度梁类件回弹及补偿的二维截面法修正
［J］．中国机械工程,2013，24(2)：180-194．

Nie X, Shen D F. Sectional method correction in high strength steel rail panel′s springback and compensation
［J］．Chinese Journal of Mechanical Engineering，2013，24(2)：180-194．

［12］GB/T 228.1—2010, 金属材料拉伸试验第1部分：室温试验方法
［S］.

GB/T 228.1—2010, Metallic materials—Tensile testing—Part 1: Method of test at room temperature
［S］.

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