The calculation of punching force and punch streng

The calculation of blanking force and punch strength of metal stamping die must not be ignored

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there are many factors that affect the blanking force, especially the shear strength and tensile strength of the material. The harder the material, the greater the blanking force used Here we only make a brief introduction Let's first understand the shear strength and tensile strength of some commonly used materials, as shown in the following figure: (click the picture to enlarge)

after knowing the shear strength and tensile strength of materials, it is very simple to calculate the punching force. Let's look at the following figure: (click the picture to enlarge)

General books are basically over here. In the actual design and manufacture, we still need to calculate the punching strength, especially some small punches, Here we take a look at the stress of the cutting edge during punching with the intensification of market competition, as shown in the following figure: (click the picture to enlarge)

for the calculation method in the above figure, the analysis of a Japanese spare parts company is shown in the following figure: (click the picture to enlarge)

I think it is true. 3. The activity difference algorithm is much more complex because of the urgent need for localization of imported products. As mentioned in the above figure, various factors have deviated from the algorithm This is only a theoretical value, which will require our on-site personnel to grind the knife edge of the punch more

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