模具初始温度对U形件热冲压机械性能的影响  

Research on the Influence of Initial Die Temperature on the U- shaped Hot Stamping Mechanical Performance Based on FEM

作　　者：徐亮[1] 潘露[1] 杜文文[1] 

机构地区：[1]安徽机电职业技术学院数控工程系,安徽芜湖241000

出　　处：《重庆科技学院学报（自然科学版）》2015年第3期106-108,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：安徽省高校省级质量工程项目"箱体类零件编程加工与检测"(2012GXK168);"数控技术专业综合改合试点"(2012ZY118)

摘　　要：利用拉伸实验获得了USIBOR1500P应力-应变曲线,采用有限元软件开展U形件热冲压成形工艺参数的数值模拟研究,分析模具初始温度分别为25,100,180℃时冲压件的最终组织结构,包括马氏体和维氏硬度。模拟结果表明:马氏体含量和维氏硬度值随着模具初始温度的升高而降低。USIBORI500P stress -strain curve of USIBOR1500P was obtained by tensile experiment and FEM ware was used to simulate the process of U - shaped hot stamping. The final organization structures of pressing were studied under different initial die temperatures （25 ℃, 100 ℃, 180 ℃ ）. The simulation results show the martensite weight percentage and Vickers hardness are in inverse proportion to initial die temperature. soft- parts that

关 键 词：热冲压 U形件 模具初始温度 有限元数值模拟 

分 类 号：TG376[金属学及工艺—金属压力加工]