Transactions of Materials and Heat Treatment

Title：Study on the effects of different forming processes on the performance of torsion beam

Authors： Chen Xianfeng Chen Zhiyong Su Haibo

Unit： Shanghai Baosteel International Economic & Trading Co. Ltd.

KeyWords： plate torsion beam tubular torsion beam hydraulic-forming modal frequency fatigue life

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(3):112-116

Abstract：

There are several torsion beam forming processes, including sheet cold stamping, tube cold stamping, tube hot stamping and tube hydroforming, etc. To obtain the effects of different forming processes on the performance of torsion beam, numerical simulation and experiments were carried out to analyze the differences in cross-section performance of torsion beam using different forming processes. The comparisons of mode, stiffness, strength and fatigue life of plate and tubular torsion beam assembly were studied. The results show that the torsional rigidity and bending rigidity of torsion beam increase by using hydraulic forming technology, the tubular torsion beam has some considerable advantages compared to the plate torsion beam which can reduce weight and improve modal frequency, stiffness, strength and fatigue life, and also reduce the fatigue risk for crack direction parallel to the cross-beam.

Funds：

Reference：

［1］Hansen R，Wecker G. Method of deforming an initial pipe having a circular cross-section into a U shaped and device for carrying out the method[P]. US:6119501,2000-09-19.
［2］Kim S H. Tool design for the tubular press forming of a rear suspension member with the finite element analysis [J]. Journal of Materials Processing Technology, 2007, 192-193:181-187.
［3］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:2011.
［4］Lee G D. Hot forming and IN-SITU cooling of metallic articles[P]. US: 0289393, 2008-11-27.
［5］Lee K T, Back H J. Tube hydroforming process design of torsion beam type rear suspension considering durability[J]. International Journal of Modern Physics B, 2008, 22(31-32): 6199-6205.
［6］韩聪，张伟玮，苑世剑，等. 预制坯形状对扭力梁内高压成形影响分析[J].材料科学与工艺，2011, 19(4):1-5.Han Cong, Zhang Weiwei, Yuan Shijian, et al. The effect of preform shape on hydroforming of a torsion beam[J].Materials Science & Technology, 2011, 19(4):1-5.
［7］张伟玮，韩聪，苑世剑，等. 加载路径对扭力梁内高压成形壁厚分布和精度的影响[J].材料科学与工艺, 2012, 20(4):1-6.Zhang Weiwei, Han Cong, Yuan Shijian, et al. Effect of loading paths on thickness distribution and precision of a hydroformed torsion beam[J]. Materials Science & Technology, 2012, 20(4):1-6.

Service：

【This site has not yet opened Download Service】【Add Favorite】