摩擦系数不等的非对称轧制条件下变形区内的变形分析  

Deformation Analysis in Deformation Zone during Asymmetric Rolling with Different Friction Coefficient

作　　者：罗德兴[1] 陈其安[2] 刘立文[3] 

机构地区：[1]钢铁研究总院安泰公司工程技术事业部,北京100081 [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4期42-45,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：采用三维大变形热-力耦合有限元法分析了摩擦系数不等的非对称热轧板带变形区内轧件的变形情况,得到了不同摩擦系数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:在摩擦系数比不同的非对称轧制条件下,会产生不同于普通压缩变形的附加剪切变形,而且这种附加剪切变形为组织细化提供了有利条件。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 friction coefficient. The distribution of stress, strain and strain energy density was obtained. The result shows that the additional shearing strain which is different from the normal compressive deformation was generated during asymmetric rolling. This additional shearing strain is beneficial to grain refinement.

关 键 词：热轧 板带 摩擦系数 非对称轧制 变形 

分 类 号：TG335.1[金属学及工艺—金属压力加工]