薄板深拉深压边力变化规律研究  

Research on the variation rule of bIanking holder fOrce in deep sheet drawing process

作　　者：何大钧[1] 王勇勤[1] 李华基[1] 王孝培[1] 米昱[1] 

机构地区：[1]重庆大学

出　　处：《锻压机械》2002年第1期41-43,共3页Metalforming Machinery

摘　　要：压边力(BHF)是薄板拉深成形过程中的一个重要工艺参数,本文应用能量理论分析法建立了应变强度εi的计算模型,该模型比传统模型更接近于实际,且基于εi建立的压边力模型在成形极限允许范围内能有效地抑制起皱,对提高拉深件质量有着重要意义。Blanking Holder Force(BHF)is one of the important parameters of sheet drawing process.The means of energy theory analysis have been used to establish mathematical model of strain strength which is more practi-cal than traditional model,and the BHF model established by the strain strength from calculation can effectively pre-vent the wrinkling within the forming limitation,which has good effect on promoting the quality of drawing parts.

关 键 词：薄板深拉 筒形件 深拉深 压边力模型 

分 类 号：TG386.32[金属学及工艺—金属压力加工] TG386.41