水箱拉丝机拉丝过程的有限元模拟仿真分析

以初始钢丝生产线为研究对象,利用ANSYS有限元分析软件对水箱拉丝机第一道次拉拔过程进行模拟仿真,研究在拉拔过程中拉拔模锥角、摩擦系数和压下量对拉拔力的影响,并对其轴向应力和径向位移分布特点进行分析。结果表明,随着模锥角的增大,拉拔力呈先减小后增大的趋势,当模锥角为8°时,拉拔力最小;随着摩擦系数、压下量的增大,拉拔力随之增大;在出口处钢丝的外层轴向应力达到最大,由外层向内层轴向应力逐渐减小,钢丝前端应力达到均匀,且钢丝的模拟径向直径小于理论直径。

Finite element simulation analysis of drawing process by wet drawing machine

The initial wire production line was studied and the first drawing process of wet drawing machine was simulated by ANSYS finite element analysis software. The effects of different die angles, friction coefficient and rolling reduction on drawing force were analyzed. The axial stress and radial displacement during the drawing process were studied. The results reveal that, drawing force decreases first and then increases with the increase of die angle, and drawing force is the minimal when the die angle is 8°. Drawing force grows with the increase in friction coefficient and rolling reduction, and the outer axial stress of wire reaches the maximum at the outlet and decreases from the outer to the inner layers. The stress is well-distributed at the front end of wire, and the simulation radial diameter of wire is smaller than the theoretical diameter.