Sheet Metal Bend Allowance

Written by Jerry Ratzlaff on . Posted in Metal

Sheet Metal Bend Allowance Formula

\(\large{ BA  =  \theta \frac{\pi}{180} \left( r + kt \right)   }\)

Where:

\(\large{ BA }\) = bend allowance

\(\large{ \theta }\) = bend angle

\(\large{ k }\) = K-factor constant

\(\large{ r }\) = inside bend radius

\(\large{ t }\)  = material thickness

\(\large{ \pi }\)  = Pi