基于MARC的FC0205铁基粉末压制模拟技术  

FC0205 iron base powder pressing simulation technology based on MARC

作　　者：张小粉[1] 白瑀[2] 李磊 ZHANG Xiaofen;BAI Yu;LI Lei(Department of Mechatronic Engineering(Technician),Xianyang Vocational Technical College,Xianyang 712000,China;School of Mechatronic Engineering,Xi'an Technological University,Xi'an 710032,China)

机构地区：[1]咸阳职业技术学院机电(技师)学院,陕西咸阳712000 [2]西安工业大学机电工程学院,陕西西安710000

出　　处：《粉末冶金工业》2023年第5期81-88,共8页Powder Metallurgy Industry

基　　金：咸阳职业技术学院重点科研基金项目(2021KJB02);咸阳职业技术学院教改项目(2023JYB12)。

摘　　要：铁基粉末冶金零件是新能源汽车传动零件重要的批量方式生产的零件。压制工艺是制坯中不可或缺的环节,采用有限元分析方法代替实验,逐步成为零件可制造性分析的重要工具。针对FC0205牌号铁基粉末进行成形与性能实验,分析压制成形的4个阶段,选用MARC软件建立铁基粉末材质模型,提出基于连续体介质的仿真方案,考察边壁摩擦因数、压制速度、进给方向3种工艺因素以及高径比、锥角结构因素对压制品密度影响的分布规律,得出良好的结构是保证压制质量的前提,合理选择工艺因素能改善压制质量的结论,从而为粉末冶金产品提供可制造性参考。Iron-based powder metallurgy parts are an important mass production method for new energy vehicle transmission parts.The pressing process is an indispensable link in the billet making,and the finite element analysis method is used instead of the experiment,and it has gradually become an important tool for the manufacturability analysis of parts.Carry out molding and performance experiments for FC0205 brand iron-based powder,analyze the four stages of press forming,use MARC software to establish the material model of iron-based powder,propose a simulation scheme based on continuum medium,and investigate three kinds of process factors,the side wall friction factor,pressing speed,feed direction,and height-to-diameter ratio and cone angle structure factors which affect the density distribution of pressed products.It is concluded that a good structure is the premise to ensure the quality of pressing,and a reasonable selection of process factors can improve the quality of pressing.

关 键 词：铁基粉末 压制 有限元 MARC 连续体介质 

分 类 号：TF124.3[冶金工程—粉末冶金]