拉深筋对板料拉深成形的影响  

Influence of draw bead on sheet metal drawing

作　　者：周起涛[1] 鹿晓阳[1] 许毅敏[1] 刘楹樾[1] 

机构地区：[1]山东建筑大学材料学院,山东济南250101

出　　处：《模具技术》2012年第6期1-4,共4页Die and Mould Technology

摘　　要：分析了拉深筋对板料拉深成形的影响机理和作用,提出拉深筋的基本设置原则,阐述设计其几何参数时应考虑的因素。结合汽车挡泥板的成形过程,利用有限元软件Dynaform分别模拟了无拉深筋、有整体拉深筋和局部拉深筋时挡泥板的成形过程。模拟结果证明,合理的拉深筋参数和布局能够有效地解决成形件的起皱和破裂问题,提高板料拉深成形质量。The influence mechanism and the effect of draw bead on sheet metal drawing was analyzed and the basic principle of setting draw bead was putting forward. At last, the fac- tors to be taken into account in designing the geometric parameters was elaborated. Com- bined with the automobile fender forming process, using finite element analysis software Dynaform to simulate the fender forming process with non-draw bead, whole circle draw bead and local draw bead. The result shows that reasonable draw bead parameters and lay- out can effectively solve the problem of wrinkling and rupture, in this way improving the quality of sheet metal drawing.

关 键 词：板料成形 拉深筋 数值模拟 局部 

分 类 号：TG386[金属学及工艺—金属压力加工]