The Bend Allowance is defined as the material you will add to the actual leg lengths of the part in order to develop a flat pattern. The leg lengths are the part of the flange which is outside of the bend radius.
the length of a (outside dimension) after bending is 31.08 mm and b is 61.08 mm, the bend allowance is 31.08 + 61.08 - 90 = 2.16 mm. The bend allowance varies depending on the material, plate thickness, and machining conditions such as the width of the "V" of the die. Most factories have data based on actual machined examples.
Bend Allowance Calculation Software. PLUS BEND - Bending Software: is a software which automatically calculates the total flat length of bent component, after the user has fed all the necessary information regarding the bent component, at the click of a button the flat length of the component is calculated.
The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. The bend allowance describes the length of the neutral axis between the bend lines, or in other words, the arc length of the bend.what is meant by bend allowance used in making a bend in a piece of sheet metal? Definition THE AMOUNT OF METAL THAT IS ACTUALLY USED IN MAKING THE BEND IN A PIECE OF SHEET METAL.where BA is bend allowance, A is bend angle in radians, R is bend radius in meters, T is material thickness in meters, and K is a material specific "fudge factor". I know nothing more about this, or even if this is the calculation you are looking for.