基于有限元法的新能源汽车顶棚回弹控制分析  

Analysis on Springback Control of New Energy Vehicle Canopy Based on Finite Element Method

作　　者：林妶婷 LIN Xuanting(Zhongying Automobile College,Quanzhou Vocational and Technical University,Jinjiang Fujian 362268,China)

机构地区：[1]泉州职业技术大学中营汽车学院,福建晋江362268

出　　处：《兰州工业学院学报》2023年第4期17-21,共5页Journal of Lanzhou Institute of Technology

基　　金：福建省中青年教师教育科研项目(JZ180976)。

摘　　要：为解决某品牌新能源汽车顶棚冲压成形过程中存在的开裂和回弹现象,以最小厚度和最大回弹量为评价目标,利用有限元软件结合综合评分法和极差分析法,分析各工艺参数对零件成形质量的影响,并获得最优工艺参数组合,将零件最小厚度控制在设计要求范围内;通过对拉延模进行回弹补偿,将零件最大回弹量控制在设计要求范围内。研究表明:工艺参数优化能够改善大型浅拉深类零件的最小厚度,并在一定程度上减少回弹,回弹补偿能够有效控制回弹。In order to solve the cracking and rebound phenomenon in the stamping forming process of a new energy vehicle roof of a certain brand,the minimum thickness and maximum rebound amount are taken an the evaluation objectives.The influence of process parameters on forming quality of parts is analyzed by using finite element software combined with comprehensive scoring method and range analysis method,and the optimal combination of process parameters is obtained to control the minimum thickness of parts within the range of design requirements.By compensating for the springback of the drawing die,the maximum springback of the part is controlled within the design requirements.Research results show that optimizing process parameters can improve the minimum thickness of large shallow drawing parts and reduce rebound to a certain extent.Rebound compensation can effectively control rebound.

关 键 词：汽车顶棚 浅拉深件 工艺参数 回弹补偿 回弹控制 

分 类 号：U466[机械工程—车辆工程]