平面应变复合挤压滑移线场中的分流点位置不仅决定了物理平面内金属的流动规律,而且直接影响到复合挤压力的大小。本文提出了介于两种极限外摩擦条件之间的滑移线场过渡方案,并建议了相应的复合挤压滑移线场;推导出适用于任何外摩擦条件(0≤μ≤0.5)的分流点座标计算公式,同时还证明了文献[9]的结论是该计算公式的两种特例。 Plane-strain co-extrusion slip line location of the shunt line not only determines the flow of metal in the physical plane, but also directly affects the size of the compound extrusion force. In this paper, a scheme of slip line field transition between the two extreme external friction conditions is proposed, and the corresponding composite squeeze slip line field is proposed. For any external friction condition (0≤μ≤0.5) At the same time, it is also proved that the conclusions of [9] are two special cases of the formula.