材料期刊网

ThreeDimensional Analysis of Rolling by Twin Shear Stress Yield Criterion

ZHAO Dewen , XIE Yingjie , LIU Xianghua , WANG Guodong

钢铁研究学报(英文版)

Using the twin shear stress yield criterion, the surface integral of the coline vectors, and the integration depending on upper limit, Kobayashi′s threedimensional velocity field of rolling was analyzed and an analytical expression of rolling torque and single force was obtained. Through redoing the same experiment of rolling pure lead as Sims, the calculated results by the above expression were compared with those of Kobayashi and Sims formulae. The results show that the twin shear stress yield criterion is available for rolling analysis and the calculated results by the new formula are a little higher than those by Kobayashi and Sims ones if the reduction ratio is less than 30%.

关键词: twin shear stress yield criterion;coline vector integral;threedimensional rolling;analytical solution