Enter the diameter (or perimeter), thickness and shear strength above …"the blanking force updates automatically.
How it works: blanking force F = shear area × shear strength. For a circular blank, shear area = π·D·t; for a general shape it is the cut perimeter × thickness. Punch compressive stress σc = F / punch face area …"keep it below the tool steel yield strength (typically > 1000 MPa). Add 10–0% safety margin for progressive dies and dull tooling.