利用变压边力控制技术改善盒形件成形性能  

Improvement of the Formability of Box Deep Drawing UsingVariable Blank-Holder Forces

作　　者：孙成智[1] 陈关龙[1] 林忠钦[1] 李淑慧[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《上海交通大学学报》2003年第12期1883-1886,共4页Journal of Shanghai Jiaotong University

摘　　要：利用有限元软件LS-Dyna3D研究了盒形件的整体压边圈和分块压边圈分别在恒压边力、变压边力(随凸模行程和压边圈位置变化)情况下的盒形件拉深成形性能.模拟结果表明,变压边力控制技术可以显著改善盒形件成形性能,增加盒形件拉深深度.The finite-element code LS-dyna3D was used to simulate the process of box deep drawing. The effects and impacts on the formability of the single-piece blank-holder and segmented blank-holder applied different blank-holder force trajectory were investigated. The numerical simulation result indicates that the variable blank-holder force can improve the formability of box deep drawing.

关 键 词：薄板成形 变压边力 数值模拟 

分 类 号：TG386[金属学及工艺—金属压力加工]