在轴对称子午面和平面应变变形平面几何尺寸相同、外摩擦一致的前提下 ,利用有限元法、滑移线法和实验方法探讨了可压缩材料轴对称正挤和平面应变正挤间单位挤压力的关系。结果表明 ,轴对称单位挤压力与平面应变单位挤压力间的比值是一个数值范围 ,pz=(1 2～ 2 1) pp ;该比值与相对密度、挤压比、摩擦条件以及材料状态有关 Under the premise of the same geometrical dimensions of the plane of axial symmetry meridional and plane strain deformation and the consistent external friction, finite element method, slip line method and experimental method were used to investigate the feasibility of compressible material The relationship between stress. The results show that the ratio of axial symmetry unit squeeze pressure to plane strain unit squeeze pressure is a numerical range, pz = (1 2 ~ 2 1) pp; this ratio is related to relative density, extrusion ratio, frictional conditions and material state related