基于Dynaform的新能源地库车顶盖冲压成形工艺有限元分析  

Finite element analysis on stamping process for cab roof of new energy underground depot vehicle based on Dynaform

作　　者：鲜小红[1,2] 张定路[3] 陈英 杨柳[5] 曹建国 Xian Xiaohong;Zhang Dinglu;Chen Ying;Yang Liu;Cao Jianguo(School of Mechanical Engineering,Sichuan University,Chengdu 610065,China;School of Intelligent Manufacturing,Sichuan Vocational and Technical College,Suining 629000,China;Sichuan Longxin Technology Packaging Co.,Ltd.,Shehong 629200,China;Department of Mechanical and Electrical Engineering,Leshan Vocational and Technical College,Leshan 614000,China;Sichuan Jianghuai Automobile Co.,Ltd.,Suining 629000,China)

机构地区：[1]四川大学机械工程学院,四川成都610065 [2]四川职业技术学院智能制造学院,四川遂宁629000 [3]四川隆鑫科技包装有限公司,四川射洪629200 [4]乐山职业技术学院机电工程系,四川乐山614000 [5]四川江淮汽车有限公司,四川遂宁629000

出　　处：《锻压技术》2022年第12期44-55,共12页Forging & Stamping Technology

基　　金：四川省科技计划项目(2021YFG0220,2015FZ0113);四川省教育厅重点项目(18ZA0430,15ZA0347)。

摘　　要：以非线性有限元软件Dynaform为平台,对新能源地库车D6176的驾驶室顶盖的冲压成形过程进行数值模拟,通过对比分析车顶盖的最大减薄率、成形不充分面积的占比、前后装配基准的形状误差等质量特征因数的变化规律,同时综合考虑企业的实际生产条件、车顶盖的应用状况、市场情况等诸多因素,最终确定了新能源汽车D6176的驾驶室顶盖的合理冲压成形工艺条件,并进行了生产验证。同时也验证了坯料内外表面摩擦力的差值、制件深度的不均匀性对冲压成形过程中材料流动不均匀性的影响规律。Based on the nonlinear finite element software Dynaform,the stamping process of cab roof for D6176 new energy underground depot vehicle was simulated numerically,and the changing laws of quality characteristic factors such as maximum thinning rate of cab roof,proportion of insufficient forming area,shape error of front and rear assembly benchmarks were analyzed by comparison.At the same time,considering the actual production conditions of enterprise,the application status of cab roof,the market situation and many other factors,the reasonable stamping process conditions of cab roof for D6176 new energy vehicle were finally determined,and the production verification was carried out.Meanwhile,the influence laws of friction difference between inner and outer surfaces of blank and unevenness of part depth on the unevenness of material flow during the stamping process was also verified.

关 键 词：新能源地库车D6176 驾驶室顶盖 冲压成形工艺 压边力 成形速度 拉延筋阻力 

分 类 号：TG386.3[金属学及工艺—金属压力加工]