蝶式孔型过渡圆弧半径对角钢腿端折叠影响的数值分析  

Influence of the Transition Arc Radius for Butterfly-pass on the Folders in the Leg-top of Angle Steel by Numerical Simulation

作　　者：俞陆新[1] 陈其伟[1] 吴结才[2] 龚新华[2] 

机构地区：[1]安徽工业大学材料科学与工程学院,安徽马鞍山243002 [2]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000

出　　处：《安徽工业大学学报（自然科学版）》2011年第2期129-132,共4页Journal of Anhui University of Technology（Natural Science）

摘　　要：采用三维弹塑性有限元法对马钢140号角钢轧制进行模拟,分析轧制过程中蝶式孔型过渡圆弧半径对轧件断面在各道次的应变分布和孔型充满度的影响,通过增大孔型过渡圆弧半径来防止充满度过大而抑制腿端折叠的形成。A 3D coupled large deformation elastic-plastic FE model is developed to simulate the rolling process of 140 angle steel.The influence of the transition arc radius for butterfly-pass on the effective strain distribution of the workpiece and the fullness degree for each pass in rolling process were proposed,the increase of arc radius for butterfly-pass is used to prevent the formation of leg-fold because of too large fullness.

关 键 词：弹塑性有限元 应变 充满度 角钢孔型 

分 类 号：TG335.11[金属学及工艺—金属压力加工]