锻压技术

基于液压成形的钣金件实验与仿真分析

英文标题：Experiment and simulation analysis on sheet metal hydroforming

作者：窦凤楼李健袁杰

单位：广西科技大学

关键词：钣金件液压成形数值模拟 ABAQUS

分类号：

出版年,卷(期):页码：2015,40(10):24-29

摘要：

液压成形技术较传统的其他金属成形技术有许多优点，而国内基于该技术的实验与仿真研究相对匮乏。为研究钣金件液压成形规律，设计并搭建了用于钣金件液压成形的系统进行实验测试分析，并基于ABAQUS非线性有限元软件对钣金件液压成形进行了有限元仿真分析，通过对最小曲率半径等参数的对比研究验证了仿真分析的正确性。以此为基础，通过仿真分析研究了钣金件成形过程中压边力、摩擦系数等参数对板件厚度变化的影响规律，仿真结果表明,在该模型下压边力的最佳取值应在60～90 MPa之间；随着摩擦系数的减小，摩擦力对成形厚度的影响增大。

Compared with other traditional methods, hydroforming technology has obvious advantages in metal forming, but the experiment and simulation on this technology are relatively scarce in domestic. In order to study the regularity of hydroforming, experiment system was designed and implemented, and testing analysis was conducted. The process of the sheet metal hydroforming was simulated by the nonlinear finite element software ABAQUS. The correctness of the simulation analysis was verified based on the comparison of parameters such as minimum radius of curvature. The influences of blank holder force and friction coefficient on forming quality were discussed. The simulation results show that the best value of BHF is between 60-90 MPa for this model, and the influence of friction on forming thickness increases with the decrease of the friction coefficient.

基金项目：

广西高等学校优秀中青年骨干教师培养工程(GXQG012013032);广西学位与研究生教育改革和发展专项课题(JGY2014117)

窦凤楼(1988-)，男，硕士研究生

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