摘要
针对某汽车后备箱结构复杂,冲压过程中易出现破裂和起皱等成型缺陷的问题,选取对成型质量影响较大的模具间隙、摩擦系数、压边力和冲压速度作为主要因素设计正交试验方案,并运用Dynaform软件构建仿真模型进行成型仿真。以最大减薄率作为评价指标,利用Minitab软件进行试验数据处理,获得了最优的冲压工艺参数组合,即模具间隙为0.700 mm、摩擦系数为0.085、压边力为80 kN和冲压速度为2400 mm/s。在得出的最优冲压工艺参数组合的基础上进行了成型仿真和生产验证,最终汽车后备箱实物的成型区域表面质量较好,没有出现破裂、起皱等成型缺陷,验证了正交试验方案和Minitab软件数据处理的合理性。
For the complicated structure of an automobile trunk,the forming defects such as cracking and wrinkling are easy to occur in the stamping process.The die clearance,the friction coefficient,the blank holder force and the stamping speed which have a great impact on the forming quality were taken as the main factors,the orthogonal test scheme was designed,and the simulation model was builded by Dynaform software.The maximum thinning rate was used as the evaluation index,the test datas were processed by Minitab software,and the optimal combination of stamping process parameters was obtained,that was,the die clearance of 0.700 mm,the friction coefficient of 0.085,the blank holder force of 80 kN and the stamping speed of 2400 mm/s.Based on the above combination of stamping process parameters,the simulation analysis and production verification were carried out.The surface quality of the forming area of the final automobile trunk is good,without forming defects such as cracking and wrinkling.The rationality of orthogonal test scheme and Minitab software data processing is verified.
作者
孙庆东
张翔
张军
尹晨
卓宇
王基
SUN Qingdong;ZHANG Xiang;ZHANG Jun;YIN Chen;ZHUO Yu;WANG Ji(Mechanical Engineering College,Yangzhou Polytechnic University,Yangzhou 225009,China;Jiangsu YIKA New Energy Auto Co.,Ltd.,Suqian 223800,China)
出处
《现代制造工程》
CSCD
北大核心
2022年第8期60-64,共5页
Modern Manufacturing Engineering
基金
江苏高校科学研究一般项目(2021SJA2008)
江苏省高校优秀科技创新团队项目(202155)
扬州市职业大学科研项目(2018ZR16)。
