Bend Deduction
Bend deduction, abbreviated as BA, is the amount of material needed to be removed to achieve the correct length.
Bend deduction formula
\(\large{ BD = 2 \; \left( r \;+\; t \right) \; tan \; \left( \frac{\theta}{2} \;-\; BA \right) }\) |
Where:
Units | English | Metric |
\(\large{ BD }\) = bend deduction | \(\large{in}\) | \(\large{mm}\) |
\(\large{ BA }\) = bend allowance | \(\large{in}\) | \(\large{mm}\) |
\(\large{ \theta }\) (Greek symbol theta) = bend angle | \(\large{deg}\) | \(\large{rad}\) |
\(\large{ r }\) = inside radius | \(\large{in}\) | \(\large{mm}\) |
\(\large{ t }\) = material thickness | \(\large{in}\) | \(\large{mm}\) |