Transactions of Materials and Heat Treatment

Title：Research of hydroforming technology for automotive torsion beam

Authors： Lang Lihui Tian Peng Cheng Pengzhi Kong Deshuai

Unit： Beihang University Longchang Shanchuan Precision Welded Tub Co. Ltd.

KeyWords： torsion beam hydroforming preform orientation angle loading path

ClassificationCode：

year,vol(issue):pagenumber：2014,39(4):25-30

Abstract：

For the cracking and wrinkling while hydroforming of torsion beam with variable cross-section, the influences of preform mold and loading path to the hydroforming accuracy of torsion beam were analyzed through infinite element analysis and experimental research. It is found that when the orientation angle is smaller, there will be a wrinkle in the corner during the concave caused by extrusion; however, it will be difficult for the material to flow into the die while the orientation angle is bigger; if the initial pressure is higher, the material will accumulate in the ends and wrinkle severely.

Funds：

工信部国际科技合作项目（2010DFA52030）；国家自然科学基金资助项目（51175024）

郎利辉（1970-），男，博士，教授

Reference：

[1]Heinz Kossmeier, Meinolf Kothenbiirger, Wigbert Christophliemke. Transverse beam and method of manufacturing a transverse beam:US Patent, No.6145271[P]. 2000-11-14.

[2]韩聪，张伟玮，苑世剑，等. 预制坯形状对扭力梁内高压成形的影响分析[J]. 材料科学与工艺，2011,19（4）:1-5.

Han Cong, Zhang Weiwei, Yuan Shijian, et al. The effect of perform shape on hydroforming of a torsion beam [J]. Materials Science and Technology, 2011,19（4）:1-5.

[3]曾小利，孙俊文，毛显红. 某型轿车后扭力梁结构轻量化设计 [A]. 2012重庆汽车工程学会年会论文集 [C].重庆，2012.

Zeng Xiaoli, Sun Junwen, Mao Xianhong. Light-weight design of rear torsion beam for saloon car [A]. Annual of the Society of Automotive Engineering of Chongqing in 2012 [C]. Chongqing，2012.

[4]Dongchan Lee, Chulho Yang. An analytical approach for design and performance evaluation of torsion beam rear suspension [J]. Finite Elements in Analysis and Design, 2013，63：98-106.

[5]Hansenr，Wecker G. Method of deforming an initial pipe having a circular cross-section into a U-shaped and device for carrying out the method: US Patent, No.6119501[P]. 2000-09-15.

[6]Uemurak, Shimada S. Method of manufacturing a modified cross-section tubular b-ody: Japan Patent, No.321846[P]. 2001-11-20.

[7]Yoon S J，Park J K，Lee M J，et al.Deformation during hot stamping process of tubular beam [A].Proceedings of the 5th International Conference on Tube Hydroforming[C].Noboribetsu: Ken-ichi Manabe, 2011.

[8]Schneider K, Choi H, Oh J, et al. High strength hydroformed automotive part devel-oped by POSCO [A].Hydroforming of Sheet-tubes and Profiles[C].Mathias Liewald, 2008.

[9]陈建军.内高压成形工艺及其在汽车轻量化中的应用[J].汽车工程，2009，(10):980-985.

Chen Jianjun. Hydroforming technology and its application in automobile lightweight [J]. Automotive Engineering, 2009, (10):980-985.

[10]苑世剑，刘钢，韩聪. 通过预成形降低内高压成形压力的机理分析[J].航空材料学报，2006，26(4):46-50.

Yuan Shijian, Liu Gang, Han Cong. The mechanism analysis of reducing the internal pressure by prefoming [J]. Journal of Aeronautical Materials, 2006，26(4):46-50.

[11]吴丛强，杨连发，何玉林，等.加载路径对液压胀形管材成形性能的影响[J].现代机械，2008，(3):6-8.

Wu Congqiang, Yang Lianfa, He Yulin, et al. Influence of loading path on formability of a tube in hydroforming [J]. Modern Machinery, 2008，(3):6-8.

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