Punching force is the amount of force required to cut or punch a hole in a material, using a punch press or similar machinery. This force is necessary to overcome the material’s resistance and shear it along the intended shape or line. To calculate the punching force required for sheet metal operations, you can use the following formula:
Punching Force(F)=PĂ—tĂ—S
where:
- F = Punching Force (usually in Newtons or kiloNewtons)
- t = Material Thickness (in millimeters or inches)
- p = Material Shear Strength (in N/mm² or psi, depends on material)
- S = Perimeter of the Punch (in millimeters or inches)