基于条元法的异步轧制金属三维塑性变形分析  

Analysis of three-dimensional metal forming by cross shear rolling based on strip element method

作　　者：彭艳[1] 张海丽[1] 

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《燕山大学学报》2014年第1期10-15,共6页Journal of Yanshan University

基　　金：国家自然科学基金资助项目(51375424);国家科技支撑计划资助项目(2011BAF15B01)

摘　　要：采用条元法分析了异步轧制条件下金属在变形区内的变形情况,建立了适用于异步轧制的轧制压力公式及中性点坐标公式,并在计算摩擦力时考虑了粘着区的存在。通过仿真分析,得到了异步轧制条件下变形区内摩擦力的分布规律及应力、应变的分布规律,最后分析了不同速比对等效应力的影响以及不同入口厚度对轧制压力的影响。A three-dimensional metal forming by the cross shear rolling is developed using the strip element method. First, the unit rolling force formula and the neutral point coordinates formula are derived. The derived formulae are suitable for the cross shear rolling, and the calculation of the friction by considering adhesion. Second, the distribution regularities of the stress, the strain, and the frictional force in deformation zone by the cross shear rolling are obtained by the simulation analysis. Finally, the effect of different ratio on the equivalent force and the effect of different entrance thickness on the rolling pressure are analyzed.

关 键 词：异步轧制 条元法 搓轧区 轧制压力 

分 类 号：TG333[金属学及工艺—金属压力加工]