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普通冲孔和精密冲孔时,孔的几何形状是截然不同的,图1示出不同的冲孔质量特征。厚板精冲孔的一系列试验表明了在各种不同的力的作用参数下的孔的特征。
The geometry of the holes is quite different for normal punching and precision punching, and Figure 1 shows the different punching quality features. A series of tests of thick plate punching show the characteristics of the holes under a variety of force-dependent parameters.