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借助于扫描电镜对轴的应力法剪切断口的剖面试样进行了观察，观察结果表明：应力法剪切下料的剪切塑变区类似平盘形，且断口的轴向塑变深度很小，仅为０．１ｍｍ量级．这对提高下料精度和材料利用率均具有现实意义。
Scanning electron microscopy (SEM) was used to observe the cross-sectional specimens of the shear stress of the shaft. The results show that the shear plastic deformation zone of the shear is similar to the flat disc shape, and the axial plastic deformation depth of the fracture is very Small, only 0.1mm on the order. This is to improve the accuracy of blanking and material utilization are of practical significance.