摘要
本文中基于正交试验,采用Dynaform软件进行某车型AA6014-T4铝合金机舱盖外板模面结构的设计和优化。研究表明:模面的拔模斜度对机舱盖外板的减薄率影响最大,而边界延长量对其增厚率影响最大。当其它成形工艺参数一定时,优化得到的最佳工艺参数为:边界延长量4mm、凸模圆角20mm、拔模斜度20°和凹模圆角10mm,经仿真和试验验证,板件成形质量好,无开裂和起皱等缺陷。
In this paper,the die face structure of the outer panel of an AA6014-T4 aluminum alloy car bonnet is designed and optimized with Dynaform based on orthogonal experiment.The study shows that the most influencing factor for panel thinning rate is the draft angle of die face while that for thickening rate is its boundary extension.The optimum technological parameters obtained by optimization with other technological parameters fixed are:a boundary extension of 4mm,a punch radius of 20mm,a draft angle of 20 degrees and a die radius of 10mm.They are verified by simulation and test,and the resulting panel has good forming quality without cracking and wrinkling.
作者
程鹏
金飞翔
邵晨曦
修磊
Cheng peng;Jin Feixiang;Shao Chenxi;Xiu Lei(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083;Department of Mechanical Engineering,Hefei University,Hefei 230601;China Academy of Machinery Science and Technology,China Productivity Center for Machinery,Beijing 100044)
出处
《汽车工程》
EI
CSCD
北大核心
2019年第1期96-102,共7页
Automotive Engineering
基金
国家科技重大专项(2017ZX04012001)
国际科技合作与交流专项(2015DFA71080)
安徽省教育厅高校自然科学研究项目(KJ2018A0553)资助
关键词
铝合金
机舱盖
冲压成形
模面
正交试验
aluminum alloy
bonnet
stamping forming
die face
orthogonal experiment
