滚筒式飞剪剪切断裂过程综合分析  

Comprehensive Analysis of Shear Fracture Process of Drum-type Flying Shears

作　　者：贾宪 陈延伟[2] 马立峰[1,3] 黄志权[1] 

机构地区：[1]太原科技大学重型机械教育部工程研究中心,山西太原030024 [2]长治清华机械厂,山西长治046000 [3]吉林大学超塑性研究所,吉林长春130025

出　　处：《热加工工艺》2015年第21期98-101,106,共5页Hot Working Technology

基　　金：国家973计划项目(2012CB722800);国家自然科学基金项目(51105264);教育部博士点基金项目(2012011036;20111415110001);中国博士后科学基金项目(2012M520677);太原科技大学校博士科研启动基金项目(20142033)

摘　　要：以某冷轧生产线上的滚筒式飞剪数据为依据,利用有限元分析软件ANSYS/LS-DYNA对飞剪的剪切过程进行了模拟。对钢板厚度、相对切入深度、剪刃重叠量、剪刃间隙、刀钝半径、剪切速度、剪刃形状不同条件下的剪切力进行了分析计算。结果表明,随着板厚的增加,最大剪切力时刻的相对切入深度降低。剪刃重叠量增大,剪切力略有所增加。剪切速度增大,剪切力将小幅增大。随着板厚的增加,最小剪切力时刻的剪刃间隙板厚百分比增加。随着剪刃钝圆半径的增大,剪切力增幅较大。结果对滚筒式飞剪力能参数计算和结构设计具有参考价值。Taking the drum flying shear data in a cold-rolling production line as the basis, the shearing process of drum flying shear was simulated by the finite element analysis software ANSYS/LS-DYNA. The sheafing force was calculated and analyzed under different conditions （the thickness of the steel plate, relatively cut depth, shear blade overlap, blade gap, a blunt knife radius, shear rate and shear blade shape）. The results show that relative cut in depth at the moment of maximttm sheafing force decreases with the increase of the steel plate thickness; when the blade overlap increases, the shearing force increases slightly; when shear velocity increases, the shearing force increases slightly; the shear blade clearance thickness percentage at the moment of minimum sheafing force increases with the increase of the steel plate thickness; the shearing force increases significantly with the increasing of blunt end radius. The results have reference value for mechanical parameter calculation and structure design of drum flying shear.

关 键 词：滚筒式飞剪 剪切过程 数值模拟 综合分析 

分 类 号：TG335[金属学及工艺—金属压力加工] TG113.25