一种冲压皱曲缺陷的仿真分析方法  

A simulation analysis method for wrinkle defect in stamping process

作　　者：张健伟 崔博 吕金贺 汪兴 刘瑞军 ZHANG Jianwei;CUI Bo;LüJinhe;WANG Xing;LIU Ruijun(School of Civil Engineering and Transportation,Beihua University,Jilin 132013,China)

机构地区：[1]北华大学土木与交通学院,吉林吉林132013

出　　处：《材料科学与工艺》2020年第2期52-59,共8页Materials Science and Technology

基　　金：吉林省教育厅“十三五”科学技术项目(JJKH20170029KJ).

摘　　要：针对金属薄板冲压成形中的皱曲缺陷,提出一种基于有限元环境的冲压皱曲缺陷仿真分析方法。该方法根据工程实际应用经验将仿真环境中的冲压件皱曲进行了量化评估,通过对应变调节方向和应变调节量的分析,掌握起皱区域的成形性状态,为金属流动调节提供支持。本文以NumiSheet 2002的标准件作为应用实例,对其皱曲缺陷进行了仿真分析,结果表明该方法对皱曲缺陷分析有效、可行,可以提高金属薄板冲压成形仿真分析的效率,节约仿真成本。To eliminate wrinkle defect in sheet metal forming,a simulation analysis method based on engineering experience was proposed in finite element environment.First,wrinkles of stamping parts were evaluated quantitatively.Then,through the analysis of direction and guantity of metal flow adjustment,the for mability states of wrinkling zones were obtained,whic provides support for metal flow adjustment.At last,as an application example,the wrinkle defect of a benchmark part of NumiSheet 2002 was analyzed and eliminated.Results proved that the method is effective and feasible to analyze wrinkle defect,which can improve the simulation efficiency of sheet metal forming and sowe the cost.

关 键 词：冲压缺陷 皱曲 板材成形 汽车覆盖件 有限元分析 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TG386[自动化与计算机技术—计算机科学与技术]