圆坯三辊斜轧过程的三维有限元热-力耦合分析  

Three Dimensional Finite Element Analysis on thermal force CouplingConcerning Three-high Cross-rolling Process with Round Billet

作　　者：李胜祗[1] 

机构地区：[1]安徽工业大学材料成型与控制工程系,安徽马鞍山243002

出　　处：《钢管》2002年第6期9-12,共4页Steel Pipe

基　　金：安徽省教育厅重点科研计划项目(99JR0178ZD)资助

摘　　要：用非线性有限元分析软件MSC.MARC/Autoforge,对圆坯三辊斜轧过程进行了三维弹塑性热-力耦合模拟仿真,得到了应力、应变场和温度分布。发现圆坯三辊斜轧时的应变强度在轧件纵剖面上的分布形态与圆坯二辊斜轧极为相似,也呈“W”型。在相同轧辊倾角条件下,圆坯三辊斜轧时变形分布的不均匀性明显比二辊斜轧时大。Addressing the three-high cross-rolling process with round billet, a three dimensional plasticity heat-force coupling simulation is conducted with a non-linear FE analysis software named MSC. MARC/Autoforge, resulting in parameters namely, the stress, the strain field and the temperature distribution. It is identified that the distribution pattern of strain strength on the rolled piece longitudinal section during three-hi cross-rolling process with round billet is very similar to that during two-hi cross-rolling process with round billet, i.e. both appear in a 'W' pattern. Also recognized is that with the same roll tilting angle, the unevenness of deformation distribution with the former process is much more obvious than that with the latter.

关 键 词：三辊斜轧 应力/应变 弹塑性有限元法 热-力耦合分析 

分 类 号：TG331[金属学及工艺—金属压力加工]