removePress Brake & Bending

Bend Deduction Calculator

Calculate bend deduction for accurate flat pattern layouts. Used to determine the flat blank size from finished part dimensions.

check_circleBend Deduction: Amount to subtract from total length.
check_circleOutside Setback: Distance from bend tangent to apex.
check_circleFlat Length: Leg1 + Leg2 - BD.

Bend Deduction Calculator

Units:

mminch

Bend Angle

Inside Radius

Material Thickness

K-Factor

school Theory & Formulas

Bend Deduction Formula:

BD = 2 × OSSB - BA

Where:
- BD = Bend Deduction
- OSSB = Outside Setback = (R + T) × tan(A/2)
- BA = Bend Allowance

Usage:
Flat Length = Leg1 + Leg2 - BD