BEND DEDUCTION

BEND DEDUCTION:

Bend Deduction is the difference from the start of the radius to the apex of the angle times two minus the bend allowance. To state it simply:

        Bend deduction = D + D - bend allowance
                     D =  tan(A° ÷ 2) x (MT + BR)

Note! The formulas can be entered in the calculator (optionally purchased) exactly how they are written down. Remember mathematical hierarchy?

     Bend deduction 90 deg. angle = 2(MT + BR) - Bend allowance
     Bend deduction = 2 x (tan(A° ÷ 2) x (MT + BR)) - Bend allowance

Developed Length = Dim. 1 - B.D + Dim. 2