FE Analysis on Shear Deformation for Asymmetrically Hot-Rolled High-Manganese Steel Strip
FE Analysis on Shear Deformation for Asymmetrically Hot-Rolled High-Manganese Steel Strip
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DOI：
10.1007/s11665-016-2338-3
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发表时间：
2016-09
影响因子：
2.3
通讯作者：
Feng-li Sui;Xin Wang;Changsheng Li;Jun Zhao
中科院分区：
文献类型：
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作者：
Feng-li Sui;Xin Wang;Changsheng Li;Jun Zhao
采用刚塑性有限元模型分析了高锰钢热轧非对称轧制过程中纵断面沿着方向的剪切变形。辊与带钢表面之间的摩擦系数，工作辊的直径，下/上辊的速度比，压下率和坯料的初始温度都被考虑在内。分析了这些工艺参数对热轧带钢中心层剪切应力、剪切应变及相应的剪切应变能的影响。研究表明，提高速比、压下率和工作辊直径是提高带钢中心剪切应变能的有效途径。建立了反映剪切应变能与工艺参数关系的数学模型。
Shear deformation along the longitudinal cross section of the high-manganese steel strip has been analyzed in hot asymmetrical rolling process using rigid-plastic finite element model. The friction coefficient between the rolls and the strip surfaces, the diameter of the work rolls, the speed ratio for the lower/upper rolls, the reduction rate and the initial temperature of the billet were all taken into account. Influence of these process parameters on the shear stress, the shear strain and the related shear strain energy in the center layer of the hot-rolled strip was analyzed. It is indicated that increasing the speed ratio, the reduction rate and the work roll diameter is an effective way to accumulate more shear strain energy in the strip center. A mathematical model reflecting the relationship between the shear strain energy and the process parameters has been established.