筒形件极限拉深系数数值模拟实验研究  

Simulation study on limit drawing coefficient of cylindrical part

作　　者：叶福民[1] 肖学文 李靖谊[1] 崔震[1] 

机构地区：[1]江苏科技大学机械与动力学院 [2]荆门宏图特种飞行器制造有限公司,湖北荆门433134

出　　处：《模具工业》2007年第9期27-31,共5页Die & Mould Industry

摘　　要：凹模圆角半径r和板料厚度t是影响板料极限拉深系数的2个重要因素。利用板料成形软件Pam_Stamp分析筒形件拉深成形过程中r与t对极限拉深系数的影响。通过黄金分割法得到板料的拉深系数m值,设计r与t的双因子四水平正交设计实验,获得8个编号的极限拉深系数m优化值,经数据处理得到圆角半径r和板料厚度t与极限拉深系数m的关系曲线。采用数值模拟实验法具有成本低、周期短、精度高的特点,对实际的生产与模具设计有一定的指导作用。　The fillet radius of die plate r and the thickness of sheet metal t are two important factors that influence the limit drawing coefficient m.Software Pam-Stamp for sheet metal forming was used to analyze the effect of the two factors on the limit drawing coefficient in the drawing process of a cylindrical part.Using the golden section method to get the m value of material,designing two-factor and four-level orthogonal experiment for r and t.Eight optimum limit drawing coefficient values were obtained,and the relation curve between r,t and m was achieved via data processing.The way of getting data via experimental numerical analogic method characters with low cost,short period and high accuracy.

关 键 词：正交设计 数值模拟 极限拉深系数 薄板成形 

分 类 号：TG386.1[金属学及工艺—金属压力加工]