差温无模锻造的三维FEM模拟与分析  

3D FEM analysis of thermal differential mouldless forging

作　　者：徐勇军[1] 鲁世强[2] 

机构地区：[1]广东工贸职业技术学院机电工程系,广东广州510510 [2]南昌航空大学材料科学与工程学院,江西南昌330034

出　　处：《锻压技术》2009年第1期6-9,共4页Forging & Stamping Technology

基　　金：江西省材料科学与工程研究中心开放基金资助项目(KG200201001)

摘　　要：为探索差温无模锻造技术在成形齿形类锻件中的应用,首先建立了差温加热的三维温度场有限元分析模型,并通过正交实验法确定了在两种不同加热方式下最佳温度场的工艺匹配,在此基础上进行了两种不同热加载方式的变形模拟。通过变形模拟分析可知:无论采用哪种热加载方式,镦粗锻件局部突出变形都不是特别大。利用差温无模锻造技术来成形具有多个较大局部突出的齿形类锻件有一定的难度,但可作为初锻的一种成形方法。To search the application of thermal differential dieless forging for gear shape forgings, the 3D FEM model of thermal differential was established. The processing parameter for acquiring optimal temperature field on two heating modes was confirmed by orthogonal experimental design. On this condition, the simulating deformation was carried out on two different heating modes. It is indicated that the local deformation of upsetting forging is not large in any heating mode. Therefore, obtaining the large local deformation for gear shape forging piece is difficult by the method of thermal differential dieless forging. But this processing is a primal upsetting method.

关 键 词：差温无模锻造 有限元模拟 齿形锻件 

分 类 号：TG316[金属学及工艺—金属压力加工]