材料期刊网

INFLUENCES ON THE PLASTIC STRAIN DISTRIBUTION OF SLAB OF VERTICAL ROLL SHAPE DURING MULTI-PASS V-H ROLLING PROCESS

H.L. Yu , null , null , null , null

金属学报(英文版)

Multi-pass slab vertical-horizontal (V-H) rolling process with variable vertical roll shape have been simulated with explicit dynamic finite element method and updating geometric method. The distributions of plastic strain contour of slab during rolling process with different vertical roll and under different rolling stage have been obtained. The results show that there exist two thin strain assembling zones in slab when the flat vertical roll is used, and there just exist one strain assembling zones in slab when the vertical roll with groove is used. And compared the deformation equality between flat vertical roll and vertical roll with groove, the later is better than the former, which supplies the theory prove to the slab deformation distribution during V-H rolling process and is helpful for predicting the slab texture.

关键词: strain , null , null , null , null

Explicit Dynamic FEM Analysis of Multipass Vertical-Horizontal Rolling

钢铁研究学报(英文版)

关键词:

基于 ANSYS 的立-平轧制过程的有限元模拟

董占斌 , 王雪松 , 才春辉 , 刘永利

中国冶金 doi:10.13228/j.boyuan.issn1006-9356.20140147

利用显式动力有限元分析软件 ANSYS／LS-DYNA，建立-平轧制过程的仿真模型，并对其轧制过程进行模拟计算。研究结果表明，经过立辊轧制，板坯的边缘上出现明显的鼓形，使板坯横断成为“狗骨状”，板坯头尾部形成鱼尾形，造成头尾部宽度收缩。水平轧制能够减轻立轧板坯头部的失宽，但使板坯头尾部非均匀长度增加，使板坯尾部产生部分回展；同时水平轧制能够减轻尾部的鱼尾变形，但对头部鱼尾变形影响很小；立辊轧制对尾部回展没有影响，其随厚向压下量的改变而改变。

关键词: ANSYS , 立-平轧制 , 有限元 , 模拟研究