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Punch / Blank / Shear Force Calculator
Decision Tools
Punch / Blank / Shear Force Calculator
Free engineering calculator - no signup, runs in your browser.
DEW Machine Shop Tools
Punch / Blank / Shear Force
Inputs
Material (tensile strength)
Mild steel (400 N/mm²)
Stainless 304 (520)
Aluminum (300)
Brass (350)
Spring steel (600)
Material Thickness (mm)
Cut Type
Round hole
Rectangular slot
Straight shear cut
Hole Diameter (mm)
Slot Width × Height (mm)
Cut Length (mm)
CALCULATE
Readout
PUNCH FORCE
—
kN
STRIPPING FORCE
—
kN
SHEAR STRENGTH / TONNAGE
—
A shear angle on the punch/die can cut peak tonnage 30–50%. τ ≈ 0.8×UTS.
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