梁笑，硕士，工程师，2014年毕业于东北大学机械制造及其自动化专业。E-mail：ag_liangxiao@126.com车门外板用钢冲压开裂分析与仿真工艺优化梁笑1,2，李春林1,2，林利1,2，徐鑫1,2，李萧彤1,2，郝志强1,2（1．海洋装备用金属材料及其应用国家重点实验室，辽宁鞍山114009；2.鞍钢集团钢铁研究院，辽宁鞍山114009）摘要：针对车门外板用钢由DC04替换成DC01引起的冲压起皱及开裂问题，分析了两种材料力学性能和成形极限的差异，并利用成形仿真软件开展了适用于鞍钢产品的车门外板成形工艺研究。结果表明，塑性应变比r值和双拉变形区极限应变的降低会导致材料的成形能力变差，使材料与模具的匹配设计难度大幅增加。仿真模型预测准确，且通过灵活设计拉延筋及阻力系数，有效控制了冲压缺陷，显著提高产品的订货量及应用稳定性。关键词：车门外板；冲压；起皱；开裂；仿真中图分类号：TG386文献标识码：A文章编号：1006-4613（2023）01-0028-07DOI：10.3969/j.issn.1006-4613.2023.01.006AnalysisonCrackingResultsinStampingSteelsforMakingOutsidePanelsofVehicleDoorsandOptimizationofSimulationProcessLIANGXiao1,2，LIChunlin1,2，LINLi1,2，XUXin1,2，LIXiaotong1,2，HAOZhiqiang1,2（1.StateKeyLaboratoryofMetalMaterialforMarineEquipmentandApplication，Anshan114009，Liaoning，China；2.AnsteelIron&SteelResearchInstitutes，Anshan114009，Liaoning，China）Abstract：AimingattheproblemsofstampingwrinklingandcrackingcausedbyreplacingDC04steelwithDC01forthesteelusedforadoorouterpanel,thedifferencesinmechanicalpropertiesandforminglimitsofthetwomaterialswereanalyzed,andtheformingprocessresearchofthedoorouterpanelsuitableforIronandSteelproductsofAnsteelwerecarriedoutbyformingsimulationsoftware.Theresultsshowedthatthereductionoftheplasticstrainratiorandtheultimatestraininthedoubletensiledeformationzonewoulddeterioratetheformabilityofthematerialandgreatlyincreasesthedifficultyofthematchingdesignofthematerialandthemold.Theriskareapredictedbythesimulationwasconsistentwiththeactualstampingsituation,whichprovedtheaccuracyofthesimulationmodel,throughtheflexibledesignofdrawbeadandtheirresistancecoefficients,stampingdefectswereeffectivelycontrolled,andtheorderquantityandappl...
