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用圆拉刀拉孔时，经常导致直径变大及出现孔形误差。误差产生的主要原因是毛坯的弹性变形及拉刀刀齿的弹性变形．本文将用分析和试验的方法对圆拉刀刀齿径向变形进行研究。1拉刀径向变形的理论分析当圆拉刀切人毛坯时，在Pz力作用下圆拉刀刀齿变形如图1所示。负荷作用下刀齿的?
Pull the hole with a circular knife, often leads to larger diameter and hole error occurs. The main reason for the error is the elastic deformation of the blank and broach tooth elastic deformation. This paper will use the method of analysis and test on the circular cutter broach radial deformation. A broach radial deformation of the theoretical analysis When the circular broach cut blank, under the action of Pz round broach cutter deformation shown in Figure 1. Under the action of the knife teeth?