压边力对盒形件拉深性能的影响分析  

Analysis on effect of blank holder force on performance of rectangle box in deep drawing

作　　者：肖小亭[1] 梁银禧 Xiao Xiaoting;Liang Yinxi(College of Materials and Energy,Guangdong University of Technology,Guangzhou Guangdong 510006)

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《汽车实用技术》2020年第7期162-163,173,共3页Automobile Applied Technology

摘　　要：对盒形件拉深成形的机理进行了研究,借助有限元分析软件Dynaform对盒形件成形过程进行了模拟。针对冲压成形过程中压边力对盒型件拉深性能的影响进行了研究,分别模拟了4种不同压边力下的盒型件成形过程,得出零件的成形极限图以及厚度变化数据,零件的最大变薄率随着压边力的增大而增大,最大增厚率的变化规律则相反。对于本文研究的盒型件,最佳的压边力大小为400kN,盒型件的最大变薄率为28.56%,最大增厚率为8.34%,满足成形要求。In this paper,the mechanism of deep drawing of box is studied,and the forming process of box is simulated by the finite element analysis software DYNAFORM.In this paper,the influence of the blank holder force on the deep drawing performance of the box part is studied.The forming process of the box part under four different blank holder forces is simulated respectively.The forming limit diagram and the thickness change data of the part are obtained.The maximum thinning rate of the part increases with the increase of the blank holder force,while the change rule of the maximum thickening rate is opposite.For the box parts studied in this paper,the optimal blank holder force is 400kN,the maximum thinning rate is 28.56%,and the maximum thickening rate is 8.34%,which meets the forming requirements.

关 键 词：盒形件 压边力 拉深 

分 类 号：U467[机械工程—车辆工程]