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这里刊出的是一张计算冲裁力的诺模图,只要我们知道了冲裁件的轮廓周长值、厚度值和其材料的剪切强度值,就能很方便的从图中求得所需的冲裁力。图的用法是这样的,先从剪切长度座标轴上找到已知的周长值,然后在厚度座标轴上找到己知的冲裁厚度值,将此二已知点用直线连接起来,该直线和剪切面积座标轴相交于一点,这一步骤就是图上标注①的情况。接着从剪切强度座标轴上找到已知的材料剪切强度值,将这点和上述剪切面积座
Here’s a nomogram for calculating the blanking force. As long as we know the contour perimeter value, the thickness value and the shear strength value of the blanking member, we can easily find the figure Required punching force. The usage of the graph is such that the known perimeter value is first found on the shear length coordinate axis and then the known punching thickness value is found on the thickness coordinate axis and the two known points are connected by a straight line , The straight line and shear area coordinate axis intersect at a point, this step is marked on the map ① situation. Next, find the known material shear strength value from the shear strength axis and compare this with the above shear area seat