Sheet Metal Bending Radius Calculation

With this free online tool we quickly get the sheet metal bend deduction and therefore the sheet metal blank initial flat length from the finished part measurements.

Sheet metal bending radius calculation.

You only have to insert interior angle flange lengths k factor inside radius and material thickness. Discover all our calculation tools in the calculators section of the top menu. Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated. This page also includes a link to a on line sheet metal bend allowance calculator.

The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Use this document to choose values that are both manufacturable and meet your needs. As this happens you gain a small amount of total length in your part.

The force must exceed the material s yield strength to achieve a plastic deformation. Most sheet metal materials will conform to the calculations. Sheet metal calculator bend allowance equations and calculator. Punch edge radius in.

The white dashed line on the part shown above represents the neutral axis which is the theoretical point in the material that does not change during the course of forming. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched.

Bending is one of the most common sheet metal fabrication operations. Cells on the right will output the desired values. Ultimate tensile strength psi. Bend radii minimum bend sizes.

This is done through the application of force on a workpiece. This tool allows you to determine tonnage internal radius v die opening and minimum flange you just have to insert the characteristics of the sheet metal to be bent. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. A is the bending angle in the above equation so.

Material to the inside of this line ought to compress whereas the material on the outside of it should expand. The mold line lengths are the distances measured to the outside mold line and are equal to the flange lengths plus the setback. And by having t and the sheet thickness t we can calculate the k factor as follow. The values of the setback bend allowance and bend deduction can be calculated from the sheet thickness bend radius bend angle and k factor.