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采用３维刚塑性可压缩有限元法对纯铅立轧模拟实验进行了理论解析，探讨了立辊直径对轧件形状和力能参数的影响．计算结果与实验结果吻合较好．并得到了３维轧制压力分布．提出利用超薄单元近似处理奇异点的新方法，使程序简化，收敛速度加快
The 3-D rigid-plastic compressible finite element method is used to analyze the simulation experiment of the pure lead rolling. The influence of the diameter of the vertical roller on the shape and force parameters of the rolled workpiece is discussed. The calculated results are in good agreement with the experimental results. And got 3-dimensional rolling pressure distribution. A new method of approximating the singular points using ultra-thin elements is proposed, which simplifies the procedure and accelerates the convergence