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为了解决某汽车纵梁冲压成形过程中存在的破裂、起皱和回弹等缺陷，提出了基于正交试验设计、数值模拟、克里金模型和遗传算法相结合的优化策略。在该策略中，正交试验设计用于构建试验安排，数值模拟用于得到试验参数组合下的冲压成形结果，克里金模型用于预测冲压成形指标，遗传算法用于优化代理模型。对正交试验结果进行方差分析，结果表明，该汽车纵梁冲压成形过程中压边力和模具间隙对冲压零件的最大减薄率和最大回弹有显著性影响。此外，通过遗传算法优化得到了最优工艺参数组合，即压边力为1600 kN、模具间隙为1.652 mm时，得到的冲压零件最大回弹量为4.42 mm,最大减薄率约为14%。经过回弹补偿后进行了冲压试制，得到的冲压零件表面质量良好，无起皱和破裂等缺陷，且零件的偏差较小，能够满足工艺生产的需求。
Abstract：To solve the defects of cracking, wrinkling and springback in the stamping process of an automobile longitudinal beam, an optimization strategy based on orthogonal test design, numerical simulation, Kriging model and genetic algorithm was proposed. In this strategy, orthogonal test design was used to construct the test arrangement, numerical simulation was used to obtain the stamping results with the combination of test parameters, Kriging model was used to predict the forming index, and genetic algorithm was used to optimize the agent model. The variance analysis of the orthogonal test results was carried out, and the results show that the influence of blank holder force and die clearance in the stamping process of the automobile longitudinal beam on the maximum thinning rate and the maximum springback of stamping parts is significant. In addition, the optimal combination of process parameters is obtained through the optimization of genetic algorithm, that is, the blank holder force is 1600 kN and the die gap is 1.652 mm, the maximum springback of stamping parts is 4.42 mm and the maximum thinning rate is about 14%. After springback compensation, the stamping trial production was carried out, the surface quality of stamping parts is good, no wrinkling, cracking and other defects, and the deviation of parts is small, which can meet the needs of process production.
[1] 施为钟，龚红英，王斌，等.基于响应面法与NSGA-Ⅱ的汽车C柱零件成形质量多目标优化[J].塑性工程学报，2021,28(8):30-37.SHI Weizhong,GONG Hongying,WANG Bin,et al.Multi-objective optimization of forming quality of automobile C-pillar parts based on response surface method and NSGA-Ⅱ[J].Journal of Plasticity Engineering,2021,28(8):30-37.
[2] 李林鑫，陈显均，银强，等.汽车前壁板冲压件的拉延成形缺陷工艺优化与Autoform应用[J].汽车零部件，2021,(8):36-41.LI Linxin,CHEN Xianjun,YIN Qiang,et al.Drawing defect process optimization and Autoform application of automobile front panel stamping parts[J].Automobile Parts,2021,(8):36-41.
[3] 吴阿敏.汽车不锈钢盖板冲压仿真试验及分析[J].锻压技术，2021,46(10):131-135.WU Amin.Stamping simulation test and analysis on automobile stainless steel cover plate[J].Forging & Stamping Technology,2021,46(10):131-135.
[4] 王康康，陈泽中，江楠森，等.基于GA-BP的汽车行李箱盖纵梁冲压成形工艺优化[J].塑性工程学报，2021,28(9):28-34.WANG Kangkang,CHEN Zezhong,JIANG Nansen,et al.Process optimization of stamping forming for inner panel of car trunk lid based on GA-BP[J].Journal of Plasticity Engineering,2021,28(9):28-34.
[5] 邱超斌，张猛，郎利辉，等.基于神经网络遗传算法的深腔型零件拉深工艺参数优化[J].精密成形工程，2021,13(5):173-179.QIU Chaobin,ZHANG Meng,LANG Lihui,et al.Parameter optimization of deep drawing process for deep cavity parts based on neural network genetic algorithm[J].Journal of Netshape Forming Engineering,2021,13(5):173-179.
[6] 赵小云，龚红英，施为钟，等.基于RSM与NSGA-Ⅱ的燃气灶外壳零件成形质量多目标优化[J].轻工机械，2021,39(1):86-91.ZHAO Xiaoyun,GONG Hongying,SHI Weizhong,et al.Multi-objective optimization of forming quality of gas stove shell parts based on RSM and NSGA-Ⅱ[J].Light Industry Machinery,2021,39(1):86-91.
[7] 刘洪俊.汽车车门纵梁冲压成形及工艺分析[J].锻压装备与制造技术，2020,55(6):123-126.LIU Hongjun.Stamping and process analysis of automobile door inner panel[J].China Metalforming Equipment & Manufacturing Technology,2020,55(6):123-126.
[8] 蒋磊，袁璐，王龙，等.侧围外板全工序成形数值模拟与工艺优化[J].塑性工程学报，2021,28(10):50-60.JIANG Lei,YUAN Lu,WANG Long,et al.Numerical simulation and process optimization of full process forming of side outer panel[J].Journal of Plasticity Engineering,2021,28(10):50-60.
[9] 冯美强，谢延敏，王东涛，等.基于信赖域改进的动态Kriging模型的冲压成形工艺参数优化[J].重庆理工大学学报(自然科学),2021,35(8):99-105.FENG Meiqiang,XIE Yanmin,WANG Dongtao,et al.Optimization of stamping process parameters based on improved dynamic Kriging model with trust region[J].Journal of Chongqing University of Technology(Natural Science),2021,35(8):99-105.
[10] 张赛，孟庆振，谢书港，等.HC260Y低合金钢的动态力学行为及其本构模型[J].理化检验-物理分册，2016,52(6):370-374.ZHANG Sai,MENG Qingzhen,XIE Shugang,et al.Dynamic mechanical behavior and constitutive model of HC260Y low Al steel[J].Physical Testing and Chemical Analysis(Part A:Physical Testing),2016,52(6):370-374.
[11] 夏亮亮，陈维晋，宋鸿武，等.不同屈服准则对热轧结构钢各向异性行为预测精度对比[J].塑性工程学报，2019,26(2):259-265.XIA Liangliang,CHEN Weijin,SONG Hongwu,et al.Comparison of prediction precision of anisotropy behavior of hot-rolled structural steel used different yield criteria[J].Journal of Plasticity Engineering,2019,26(2):259-265.
[12] 鄂宏伟，李亚东，郑学斌，等.屈服准则和硬化模型对DC56D+Z钢汽车后背门纵梁成形仿真精度的影响[J].机械工程材料，2021,45(10):91-96,103.E Hongwei,LI Yadong,ZHENG Xuebin,et al.Influence of yield criterion and hardening model on forming simulation accuracy of automobile rear door inner panel of DC56D+Z steel[J].Materials for Mechanical Engineering,2021,45(10):91-96,103.
基本信息:
中图分类号:U466;TG386
引用信息:
[1]王大鹏,李晓峰.某汽车内板冲压成形工艺优化及回弹补偿[J].塑性工程学报,2022,29(09):40-46.
基金信息:
2021年重庆广播电视大学重庆工商职业学院科研项目-基于实训教学环境的汽车零部件智能制造生产线的研究与设计(NDYB2021-18)
2022-09-20
2022-09-20
2022-09-20