锻压技术

铝合金筒形件充液拉深成形过程中模具参数对回弹的影响

英文标题：Influence of die parameters on springback during hydroforming for aluminum alloy cylindrical part

作者：陆宏黄文刘庆国秦泗吉

单位：1.燕山大学机械工程学院塑性成形工程系 2.燕山大学国家冷轧板带装备及工艺工程技术研究中心

分类号：TG315.4

出版年,卷(期):页码：2019,44(10):24-29

摘要：

针对2219铝合金筒形件的充液拉深成形，研究了模具参数对回弹的影响。采用ABAQUS IMPLICIT 软件，对充液拉深成形过程进行有限元模拟，采用实体单元，板料采用1/32模型，选取不同的凸模圆角半径、凹模圆角半径和凸凹模间隙，给出预胀形压力和成形压力，模拟得到应力的分布及回弹。在此基础上，给出回弹随模具参数的变化规律。模拟结果表明：回弹随凸模圆角半径的增大而减小；随着凹模的圆角半径的增大，筒形件底部回弹角变小，法兰区凹模圆角中止处回弹略有增大；筒形件底部回弹角随凸凹模间隙的增大而变大，凸凹模间隙对法兰区凹模圆角中止处回弹的影响不大。

For the hydroforming of cylindrical part for 2219 aluminum alloy, the influences of die parameters on springback were investigated, and the hydroforming process was simulated by software ABAQUS IMPLICIT. Then, the pre-bulging pressure and forming pressure were given by adopting solid elements and 1/32 sheet model with different punch radius, die radius and clearance between punch and die, and the stress distribution and springback were simulated. On the basis of this, the changes of springback with the die parameters were given. The simulation results show that the springback of cylindrical part decreases with the increasing of punch radius, and with the increasing of die radius, the springback angle in

the bottom of cylindrical part decreases,and the springback at the end of die radius in flange area slightly increases. Furthermore,the springback angle in the bottom of cylindrical part increases with the increasing of the clearance between punch and die, and the influence of clearance between punch and die on the springback at the end of die radius in flange area is little.

基金项目：

国家自然科学基金资助项目（51675466）

作者简介：陆宏(1962-)，女，博士，副教授 E-mail：honglu@ysu.edu.cn;honglu512@hotmail.com

参考文献：

［1］苑世剑，刘伟，徐永超. 板材液压成形技术与装备新进展
［J］.机械工程学报，2015,51(8):20-28.

Yuan S J, Liu W, Xu Y C. New development on technology and equipment of sheet hydroforming
［J］. Journal of Mechanical Engineering, 2015,51(8):20-28.

［2］Tirosh J, Konvalina P. On the hydrodynamic deep-drawing process
［J］. International Journal of Mechanical Science, 1985, 27(9):595-607.

［3］福井伸二，吉田清太，阿部邦雄.采用充液拉深成形法的板材拉深
［J］.塑性与加工,1961,2(10):715-726.

Fukui S, Yoshida K, Abe K. Deep drawing of shell by hydraulic forming method
［J］. Journal of the JSTP, 1961,2(10):715-726.

［4］中村和彦，中村正美.铝合金板材的充液拉深成形特性
［J］.塑性与加工,1994, 402 (35):881-886.

Nakamura K, Nakamura M. Deep drawability of aluminum alloy sheets with hydraulic counter pressure
［J］. Journal of the JSTP, 1994, 402 (35):881-886.

［5］Zhao S D, Zhang Z Y, Zhang Y, et al. The study on forming principle in the process of hydro-mechanical reverse deep drawing with axial pushing force for cylindrical cups
［J］. Journal of Materials Processing Technology, 2007, 187-188(12):300-303.

［6］郎利辉，杨希英, 孙志莹, 等. 基于响应面法的汽车覆盖件充液成形工艺参数多目标优化
［J］. 汽车工程，2015,37(4):480-484.

Lang L H，Yang X Y，Sun Z Y, et al. Multi-objective optimization of hydroforming process parameters for automotive closure panels based on response surface method
［J］. Automotive Engineering, 2015,37(4):480-484.

［7］周晶晶，何成，王耀，等. 基于充液成形技术的铝合金发盖内板成形
［J］. 锻压技术，2017，42（2）：52-55.

Zhou J J，He C，Wang Y，et al. Forming of aluminum alloy inner panel of engine hood based on hydroforming technology
［J］. Forging & Stamping Technology，2017，42（2）：52-55.

［8］张志超，徐永超, 苑世剑. 不锈钢外板对5A06铝合金板液压胀型行为的影响
［J］. 机械工程学报，2016,52(14):40-47.

Zhang Z C, Xu Y C, Yuan S J. Effect of outer stainless steel on the deformation behavior of hydro-bulging of 5A06 aluminum alloy sheet
［J］. Journal of Mechanical Engineering, 2016,52(14):40-47.

［9］陈绪国，李继光, 张杰刚, 等. 2A12平底筒形件充液拉深数值模拟研究
［J］. 精密成形工程，2015,7(6):86-91.

Chen X G, Li J G, Zhang J G, et al. Numerical simulation of 2A12 aluminum flat bottom cylindrical part by hydromechanical deep drawing
［J］. Journal of Netshape Forming Engineering, 2015, 7(6): 86-91.

［10］陈一哲，刘伟, 苑世剑. 薄板液压成形起皱预测及控制研究进展
［J］. 机械工程学报，2016,52(4):20-28.

Chen Y Z, Liu W, Yuan S J. Research development on wrinkling prediction and suppression for sheet hydroforming of thin-walled deep drawing parts
［J］. Journal of Mechanical Engineering, 2016, 52(4):20-28.

［11］程鹏，金飞翔, 邵晨曦. 基于正交试验的铝合金覆盖件模面优化
［J］. 汽车工程，2019,41(1):96-102.

Cheng P, Jin F X, Shao C X. Optimization of die face for aluminum alloy closure panel based on othogonal experiment
［J］. Automotive Engineering, 2019,41(1):96-102.

［12］Lu H, Ito K, Kazama K, et al. Development of a new quadratic shell element considering the normal stress in the thickness direction for simulating sheet metal forming
［J］. Journal of Materials Processing Technology, 2006,171(3): 341-347.

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