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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。
The shearing process of the flying shear was simulated by finite element analysis software ANSYS / LS-DYNA based on the data of roller flying shear in a cold rolling production line. The shear force under different conditions of steel plate thickness, relative depth of cut, overlapping amount of cutting edge, cutting edge clearance, blade blunt radius, cutting speed and cutting edge shape were analyzed and calculated. The results show that with the increase of plate thickness, the relative depth of cut at the moment of maximum shear decreases. Shear edge overlap increases, the shear force increased slightly. Shear speed increases, the shear force will increase slightly. As the thickness increases, the percentage of the thickness of the blade at the minimum shear moment increases. With the increase of shearing radius, the shearing force increases greatly. The results have reference value for the calculation and structural design of roller-shear force energy parameters.