锻压技术

铝合金防碰撞吸能管液压成形加载路径研究

英文标题：Research on hydraulic forming loading paths of aluminium alloy anti-collision energy-absorbing tube

作者：汪奇超雷君相骆协海

单位：上海理工大学

分类号：TG394；TP311

出版年,卷(期):页码：2011,36(6):55-58

摘要：

针对防碰撞吸能管成形需要，提出了对铝合金6061圆管液压胀形过程的轴向进给补偿液压力加载路径控制过程。通过数值模拟方法，采用分析软件ABAQUS 610对铝合金6061管材液压胀形的加载路径进行了研究。以成形件不发生起皱、破裂两种失效方式以及最终成形壁厚分布为依据，分析了不同轴向进给和液压力加载路径对成形件质量的影响。研究表明,采用轴向进给量为27mm，液压力为85MPa的加载路径，获得吸能管的最大减薄率为205%，成形质量较好，并在一副模具中同时完成S型过渡区域的成形。

According to the need of the double diameter tube part forming, the axial feeding compensation and hydraulic pressure loading control to the hydraulic bulging process of aluminium alloy 6061 tube were put forward. By numerical simulation method and the analysis software ABAQUS 610 ， aluminum alloy 6061 tube hydraulic bulging loading paths were studied. Taking eventual thickness distribution of the forming parts and forming failure control as the basis, the axial feeding and liquid pressure loading path on forming quality was analyzed. Research shows that when the axle feeding rate is 27 mm and hydraulic pressure is 85 MPa, the max thinning rate of the anti-collision energy-absorbing tube is 205%, the quality of parts is nice and the forming of S shape transition region in a pair of mould can be finished.

基金项目：

参考文献：

[1]Harjinder S. Hydroforming simulation becoming cost effective[J].Forming & Fabricating, 2003, 109: 39-46.

[2]Lee Munyong，Sohn Sungman，Kang Changyoung．Study on the hydroforming process for automobile radiator support members[J]．Journal of Materials Processing Technology，2002，131：115-120．

[3]Ahmetoglu M,Altan T. Tube hydroforming: state-of-the-art and future trends[J]. Journal of Materials Processing Technology, 2000,98 : 25-33.

[4]梁炳文，胡世光.弹塑性稳定理论[M].北京：国防工业出版社,1983.

[5]苑世剑.现代液压成形技术[M].北京：国防工业出版社，2009.

[6]王同海.管材塑性成形技术[M]. 北京：机械工业出版社,1997.

[7]余同希.利用金属塑性变形原理的碰撞能量吸收装置[J].力学进展，1986,1(16):28-38.

[8]雷君相,李笠.圆管缩径能量吸收装置的研究[J].塑性工程学报，1995，1（2）：57-64.

[9] Hibbitt,Kalsson，Sorensen，et al. ABAQUS有限元软件入门指南[M].庄茁，译.北京:清华大学出版社，1998.

[10]钟志华. 汽车碰撞安全技术[M].北京：机械工业出版社, 2003.

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