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本文采用大变形弹塑性有限元理论，八节点四边形单元，准确的摩擦边界处理技术和反映材料在热加工过程中真实应力－应变的本构关系曲线，用ANSYS5.1软件对尺寸为外径：内径∶高度＝6∶3∶2的圆环在不同摩擦系数（μ＝0－0.577）条件下的镦粗过程进行了数值模拟研究，并根据模拟结果绘制了金属热加工成形过程中测量摩擦系数的理论标定曲线，该曲线比经典方法的结果具有更高的精度。
In this paper, the large deformation elasto-plastic finite element theory, the eight-node quadrilateral element, the accurate friction boundary treatment technology and the real stress-strain constitutive curve reflecting the thermal processing of the material are adopted. The numerical simulation of the upsetting process of a ring with inner diameter: height = 6: 3: 2 under different friction coefficients (μ = 0-0.577) was carried out. According to the simulation results, the friction coefficient The theoretical calibration curve, the curve than the results of the classical method with higher accuracy.