薄板拉深中法兰区的屈曲分析  

Wrinkling analysis of flange in the process of sheet drawing

作　　者：张福全[1] 陶友瑞[1] 黄长清[1] 曹剑[1] 

机构地区：[1]湖南大学材料学院,410082

出　　处：《锻压技术》2004年第2期18-20,共3页Forging & Stamping Technology

摘　　要：利用板壳理论中的Hill分叉屈曲理论 ,建立了拉深中圆环形法兰边的屈曲模型 ,推导了各向同性板材的弹塑性稳定性方程 ,分析了法兰区板料屈曲的影响因素 ,提出了控制屈曲的方法 。On the base of Hill's bifurcation point bulking theory, it is calculated that winkling model of circle flange in the process of sheet drawing The elastic plastic constitutive equations of isotropic materials are obtained and the influences of several factors on wrinkling of flange are analyzed The ways to control wrinkling are put forward This model can provide necessary theoretical basis for the engineering practices

关 键 词：板料成形 屈曲 拉深 圆环形法兰边 模型 

分 类 号：TG386[金属学及工艺—金属压力加工]