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Spring Calculation ! Press Tool / Die में स्प्रिंग लागने से पहले ये वीडियो जरूर देखना !
The perforating pressure calculations are usually done using 25 tons and then adjusted for other metals with a ratio reflecting the hardness of the other material to mild steel. Perforating pressure is calculated as follows: (Length of shear in inches) x (Material thickness in inches) x 25 tons (for mild steel).
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