圆环镦粗校准曲线的有限元研究

Finite Element Research on Upsetting Calibration Curve of the Ring

圆环镦粗法是测定摩擦系数时所用理论校准曲线,没有考虑到材料、温度、变形速度等工艺参数对摩擦的影响,因此缺乏专用性和准确性。采用有限元模拟的方法,可以在模拟过程中通过对参数的设定使模拟过程接近实际生产过程,最终根据模拟结果绘制的有限元校准曲线具有较高的准确性。

Theoretical calibration curve is used in the ring upsetting method to determine the friction coefficient, which does not take into account the impact of process parameters on friction, such as material, temperature, deformation speed, so it lacks of specificity and accuracy. The finite element simulation method can be used to set parameters in order to be close to the actual production process, and the calibration curve of the finite element drawn according to the simulation results eventually has more accuracy in the simulation process.