断续挤压状态的压力与摩擦

The Pressure and Frictioh of the Discontinuous Extrusion

介绍了中断挤压过程后重新加载挤压时的压力与摩擦的变化情况，分析了这一特殊加载方式导致挤压力降低的原因，举例说明了本方法的应用特点。

The changes of the pressure and friction in the course of extrusion which reload again after unloading are introduced. The reason for the decrease of the extrution force resulting from the discontinuous loading method is analyzed. Tipical examples are given to show the application feature of the method.