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一前言随着机器制造业的发展。冷挤压技术,在工业中的应用越来越广泛。人们对轴对称挤压变形进行了较为详尽的研究,并取得了令人满意的结果。但对于在工业中广泛运用的非轴对称类零件——如齿轮、花键及各种非园截面零件等——的挤压过程的研究则不多见。非轴对称问题的运动学许可速度场不同于轴对称问题的速度场。一前者不仅有轴向、经向
A foreword With the development of machinery manufacturing industry. Cold extrusion technology, the application in industry is more and more widely. Axisymmetric extrusion deformation of a more detailed study, and achieved satisfactory results. However, research on the extrusion process of non-axisymmetric parts widely used in industry, such as gears, splines and various non-circular section parts, is rare. The kinematic permitting velocity field for non-axisymmetric problems is different from the velocity field for axisymmetric problems. The former is not only axial, meridional