Sheet Metal Bending Radius Calculation

Ultimate tensile strength psi.

Sheet metal bending radius calculation.

Bending angles greater than 90 degrees. And by having t and the sheet thickness t we can calculate the k factor as follow. Radius metal will crack at the outside heel of the bend. Cells on the right will output the desired values.

Like previous scenarios let s start by calculating leg length 1. Bend radii minimum bend sizes. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. The material thickness will be measured in decimal form not by the gauge number.

This page also includes a link to a on line sheet metal bend allowance calculator. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Radius of a bend is determined by the hardness and thickness of the metal. Sheet metal calculator bend allowance equations and calculator.

Punch edge radius in. There are four methods for finding bend allowances. The values of the setback bend allowance and bend deduction can be calculated from the sheet thickness bend radius bend angle and k factor. The mold line lengths are the distances measured to the outside mold line and are equal to the flange lengths plus the setback.

Die edge radius in. Learn more about bending. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. You just have to insert the characteristics of the sheet metal to be bent.

This tool allows you to determine tonnage internal radius v die opening and minimum flange. A is the bending angle in the above equation so. To calculate r which is the radius of the arc on the neutral axis we can use the following equation. Most sheet metal materials will conform to the calculations.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. When bends are made smaller than the required min. R bending bending with an inside radius greater than 8 times the material thickness. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k.

Reflex angle a geometry term for an angle which is greater than 180 sharp bend when the radius of the bend is less than 63 of the material thickness seen commonly with hemming applications. Sheet metal bending parameters calculator. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. Use this document to choose values that are both manufacturable and meet your needs.