基于有限元技术的汽车车门吊钩冷挤压成型分析及模具结构优化  

Analysis and Cold Extrusion Forming of Automotive Door Hook Based on Finite Element Technology

作　　者：左黎明 雍凯 杨亚 ZUO Li-ming;YONG Kai;YANG Ya(School of Intelligent Manufacturing,Wuhu Institute of Technology,Wuhu 241006,China;Anhui Ruitai Auto Parts Co.Ltd,Chizhou 242803,China)

机构地区：[1]芜湖职业技术学院智能制造学院,安徽芜湖241006 [2]安徽瑞泰汽车零部件有限责任公司,安徽池州242803

出　　处：《辽东学院学报(自然科学版)》2024年第4期267-274,共8页Journal of Liaodong University:Natural Science Edition

基　　金：安徽省质量工程项目(2023jyxm1304);安徽省高校重点科研项目(2024AH052010,2024AH052028)。

摘　　要：汽车零部件成型模具制作成本高昂。为有效减少开模成本,利用ANSYS瞬态动力学模块针对汽车车门吊钩冷挤压成型过程进行有限元分析,对成型数值进行模拟,预判可能的成型风险区域,并对模具结构进行优化。研究结果表明:模具模型结构优化前,应力集中在吊钩变径过渡区域,最大应力为542.16 MPa,存在成型开裂风险;模具模型结构优化后,原风险区域最大应力下降至496.82 MPa,且应力集中面积显著减小,成型风险有效降低。实物加工结果表明,实际情况和有限元分析结果基本一致,有限元分析准确可靠。The manufacturing cost of automotive parts forming molds is highIn order to effectively reduce the cost of mold making,the finite element analysis was conducted on the cold extrusion process of a car door hook using ANSYS transient dynamics moduleThe forming values were simulated,the potential forming risk areas were predicted,and the mold was optimized and improvedThe research results show that before the structural optimization of the mold model,the stress is concentrated in the variable diameter transition area of the hook,with the maximum stress being 542.16 MPa,posing a risk of forming crackingAfter the structural optimization of the mold model,the stress in the original risk area decreased to 496.82 MPa,and the area of stress concentration was significantly reduced,effectively lowering the forming riskThe physical comparison experiment indicates that the actual situation is basically consistent with the finite element analysis results,which proves the accuracy and reliability of the finite element analysis.

关 键 词：汽车车门吊钩 应力集中 挤压成型 有限元分析 最大应力 

分 类 号：TG376.3[金属学及工艺—金属压力加工]