Calculate Radius Sheet Metal

Whereas the outer surface is stretched.

Calculate radius sheet metal. Bend radii minimum bend sizes. As a result overall sheet length increases. 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. A cutout or the edge of your flange to your bend.

This page also includes a link to a on line sheet metal bend allowance calculator. This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend. Most sheet metal materials will conform to the calculations. Cells on the right will output the desired values.

Ultimate tensile strength psi. A is the bending angle in the above equation so. Punch edge radius in. Input material thickness and and inner radius to get the data of k factor y factor neutral layer.

And by having t and the sheet thickness t we can calculate the k factor as follow. A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp. When sheet metal is bend the inside bending surface is compressed. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r.

The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Choose a bend radius that matches your minimum bend. This change in sheet length depends on the position of neutral axis or k factor. Sheet metal calculator bend allowance equations and calculator.

Then input the bend angle to get the arc length bend allowance and bend deduction. Determine your minimum bend by measuring the distance from your closest feature i e. Then input leg length a and b to get the flat size of the sheet. To calculate r which is the radius of the arc on the neutral axis we can use the following equation.

You only have to insert interior angle flange lengths k factor inside radius and material thickness.