Calculator catalog
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Found 12 calculators
Sheet metal bend allowance
Calculates BA = θ_rad × (Ri + Kt) for a bend angle measured from the flat state.
Sheet metal outside setback
Calculates OSSB = (Ri + t) × tan(θ/2) for two outside flanges.
Sheet metal bend deduction
Calculates BA, OSSB, and BD = 2 × OSSB - BA for one bend line.
Flat length from outside flanges
Calculates L_flat = A + B - BD for one bend and outside flange dimensions.
Flat length from tangent lengths
Calculates L_flat = L_tangent_1 + L_tangent_2 + BA without mixing outside flange dimensions.
K-factor from measured BA
Solves K = (BA/θ_rad - Ri) / t from a measured bend allowance.
V-die bending force estimate
Estimates F = k_b × σ × L × t² / V with an explicit user process coefficient.
Round hole punching force
Calculates perimeter πd and force F = perimeter × t × τ_s for round punching or piercing.
Rectangular punching force
Calculates perimeter 2(a + b) and force F = perimeter × t × τ_s for a rectangular contour.
Minimum bend radius from factor
Calculates minimum inside radius as user-supplied material factor times sheet thickness.
Measured springback
Describes measured springback from loaded and released angles; it does not predict material behavior.
Material roll length and mass
Calculates length, outer diameter, turn count, and mass from the winding volume equation.