基于薄板冲压成形的零件展开方法及其应用  

Part unfolding method based on sheet metal forming and its applications

作　　者：胡李勇 王利 王益平 李中华 HU Liyong;WANG Li;WANG Yiping;LI Zhonghua(School of Mechatronical and Automotive Engineering,Xuancheng Vocational&Technical College,Xuancheng 242000,China;Ma′anshan Engineering Technology Research Center of Advanced Design for Automotive Stamping Dies,Ma′anshan 243031,China;Academic Affairs Section,Nanjing Technical School of Public Utilities,Nanjing 210009,China;Technology Center,Shanghai Topsen Automotive Electronics Co.,Ltd.,Shanghai 201213,China)

机构地区：[1]宣城职业技术学院机电与汽车学院,安徽宣城242000 [2]马鞍山市汽车冲压模具先进设计工程技术研究中心,安徽马鞍山243031 [3]南京市公用事业技工学校教务科,江苏南京210009 [4]上海拓绅汽车电子有限公司技术中心,上海201213

出　　处：《河南工程学院学报（自然科学版）》2021年第4期39-43,共5页Journal of Henan University of Engineering：Natural Science Edition

基　　金：安徽省高校自然科学研究项目(KJ2019A1140);马鞍山市工程技术研究中心开放基金项目(QMSG202102,QMSG202103)。

摘　　要：为提高复杂边界零件坯料轮廓的预测精度,控制冲压成形零件轮廓误差,总结并分析了各类展开方法的仿真数学模型。以搭子件为研究对象、AutoForm为软件平台,在制件成形工艺设计过程中,研究了各类零件展开方法的应用与效果。由成形零件轮廓的误差可知,3种方法的优劣顺序依次为增量加载有限元法、一步逆成形有限元法、截面几何展开法。在应用增量加载有限元法的切边线反求后,零件成形轮廓误差由近2 mm缩至0.58 mm,可以看出该方法对成形零件的轮廓误差起到了较好的控制效果。In order to improve the prediction accuracy of blank contour of complex boundary parts and control the contour error of stamping parts,the deployment methods of parts are summarized,and the simulation mathematical models of various deployment methods are analyzed.This paper studies the application and effect of various parts unfolding methods in the process of forming process design of parts based on AutoForm software.The simulation results show that the order of the profile error of the formed parts is the best incremental loading finite element method,followed by the one-step inverse forming finite element method and the geometry expansion method.After the reverse calculation of trimming line of incremental loading finite element method is used,the contour error is reduced from 2 mm to 0.58 mm.This method can control the contour error of forming parts.

关 键 词：轮廓误差 零件展开方法 仿真数学模型 切边线反求 

分 类 号：TS107.5[轻工技术与工程—纺织工程]