轧辊直径不等的非对称轧制条件下变形区内的变形分析  

Analysis of Metal Deformation in Deformation Zone for Asymmetric Rolling with Different Roller Diameter

作　　者：罗德兴[1] 陈其安[2] 刘立文[3] 

机构地区：[1]北京科技大学材料学院,北京100083 [2]钢铁研究总院结构材料研究所,北京100081 [3]钢铁研究总院连铸中心,北京100081

出　　处：《钢铁研究学报》2004年第1期40-43,共4页Journal of Iron and Steel Research

基　　金：国家重点基础研究发展规划资助项目(G1998061500)

摘　　要：为了研究非对称轧制条件下变形区内金属的变形情况,采用三维大变形热 力耦合有限元法,分析了轧辊半径不等的非对称热轧板带变形区内轧件变形的情况,得到了在不同异径比条件下,变形区内应力、应变和应变能量密度的分布规律。结果表明:在非对称轧制条件下会产生不同于普通压缩变形的附加剪切变形,而且异径比越大,产生的附加剪切变形也越大。The 3D elastic-plastic thermo-mechanical coupled FEM for large strain was used to analyze metal deformation in the deformation zone for asymmetric rolling with different roller diameter. The distribution of stress, strain and strain energy density for different diameter ratio was obtained. The results show that the additional shearing strain different from the normal compression deformation is generated in asymmetric rolling process. The more the different ratio of diameter,the greater the additional shearing strain.

关 键 词：非对称热轧 变形 剪切变形 有限元法 轧辊 

分 类 号：TG335.1[金属学及工艺—金属压力加工]