3004Al帽形钣金件基于优化函数协同变横向辊距技术的辊弯成形研究

发布时间：2018-04-16 21:39

本文选题：帽形钣金件 + 辊弯成形　；参考：《塑性工程学报》2017年06期

【摘要】：在帽型钣金件辊弯成形过程中,传统的辊弯技术在辊弯过程中常常出现起皱、辊裂、变形等缺陷。针对上述问题,提出优化函数协同变横向辊距技术,即依据帽形件的截面形状对抽象函数优化,确定优化函数参数;对横向辊间距进一步优化,建立变辊距辊弯系统。首先,通过对抽象函数进行参数化设置,对材料3004Al的帽形件的辊弯成形进行了有限元模拟,确定优化函数;随后,在优化函数的辊弯环境中,对帽形件在多组恒值横向辊距中进行了辊弯模拟,从而确定变横向辊间距,并利用优化函数协同变横向辊距技术对3004Al帽形件进行辊弯实验。研究表明:基于优化函数协同变横向辊距技术的辊弯成形模拟结果与实验结果相吻合,且辊弯效率高、质量好。
[Abstract]:In the process of roll forming of cap sheet metal parts, the traditional roll bending technology often appears such defects as wrinkle, roll crack, deformation and so on.Aiming at the above problems, this paper puts forward the technology of optimizing function and variable transverse roll spacing, that is, optimizing the abstract function according to the shape of the section of the cap piece, determining the parameters of the optimization function, and further optimizing the transverse roll spacing to establish the roll bending system with variable roll spacing.Firstly, by parameterizing the abstract function, the finite element simulation of the roll bending of the cap part of the material 3004Al is carried out to determine the optimization function, and then, in the roll bending environment of the optimization function,In this paper, the roll bending of the cap part is simulated in several groups of constant transverse roll spacing, and the variable transverse roll spacing is determined, and the roll bending experiment of the 3004Al cap part is carried out by using the optimization function in cooperation with the variable transverse roll spacing technique.The results show that the simulation results of roll bending based on the technology of co-variable transverse roll spacing based on optimization function are in good agreement with the experimental results, and the roll bending efficiency is high and the quality is good.
【作者单位】：山东核电设备制造有限公司;烟台市核电设备工程技术研究中心;山东科技大学机械电子工程学院;
【基金】：国家科技重大专项(2014ZX06004004-008)
【分类号】：TG386

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