先进高强钢冲压成形回弹工艺参数优化  

Optimization of Springback Process Parameters for Stamping of Advanced High-Strength Steel

作　　者：曹琳琳 徐家川[1] 张云 亓伟东 刘恒 李迪[1] 付秋涛 Cao Linlin;Xu Jiachuan;Zhang Yun;Qi Weidong;Liu Heng;Li Di;Fu Qiutao(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo City,Shangdong Province 255049,China;Shandong Kehui Power Automation Co.,Ltd.,Zibo City,Shangdong Province 255000,China)

机构地区：[1]山东理工大学交通与车辆工程学院,山东省淄博市255049 [2]山东科汇电力自动化股份有限公司,山东省淄博市255000

出　　处：《农业装备与车辆工程》2022年第5期137-140,145,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：针对先进高强钢冲压成形后回弹现象,运用Dynaform软件建立U型件拉弯成形有限元仿真模型,采用正交试验设计与灰色关联度相结合的优化方法,分析不同工艺参数对先进高强钢冲压成形回弹的影响程度,确定回弹主要影响因素为压边力、冲压速度和摩擦系数,获得最优参数组合。将优化过后的工艺参数在Dynaform中再次模拟,结果显示回弹量仅为0.965°,回弹得到有效控制,提升了板料成形质量。Aiming at the springback phenomenon of advanced high-strength steel stamping forming, the finite element simulation model of U-shape stretch bending forming was established by using Dynaform software. The influence of different process parameters on springback of advanced high-strength steel stamping forming was analyzed by using the optimization method of orthogonal experimental design and grey correlation degree. The main influencing factors of springback were determined as blank holder force, stamping speed and friction coefficient, to obtain the optimal parameters combination. The optimized process parameters are simulated again in Dynaform,and the results show that the springback is only 0.965°, which is effectively controlled and the sheet metal forming quality is improved.

关 键 词：先进高强钢 DP780 回弹 仿真优化 灰色关联分析 

分 类 号：TG382[金属学及工艺—金属压力加工]