摘要
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。
Finite element analysis software ANSYS/LS-DYNA was used to construct a simulation model of V-H rolling process and calculated.The research results show that after vertical rolling,the drum-shape obviously appeared on the edge of slab,the head and tail of slab forming fishtail,which caused the shrinkage of the head and tail width.Horizontal rolling could reduce the loss of head width,but the slab head and tail increased in non-uniform length,and the tail of slab appeared exhibition;while the horizontal rolling could reduce deformation of fishtail on the tail,but the impaction of fishtail deformation on the head was little;vertical rolling had no influence on the tail of the exhibition,and it changed with the thickness reduction change.
出处
《中国冶金》
CAS
2015年第4期18-23,共6页
China Metallurgy
