Calculate Radius Sheet Metal

Most sheet metal materials will conform to the calculations.

Calculate radius sheet metal.

This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend. Best way to calculate k factor in sheet metal is by reverse engineering. Cells on the right will output the desired values. And by having t and the sheet thickness t we can calculate the k factor as follow.

This page also includes a link to a on line sheet metal bend allowance calculator. Ultimate tensile strength psi. Punch edge radius in. Then input leg length a and b to get the flat size of the sheet.

This change in sheet length depends on the position of neutral axis or k factor. A cutout or the edge of your flange to your bend. Die edge radius in. Input material thickness and and inner radius to get the data of k factor y factor neutral layer.

Then input the bend angle to get the arc length bend allowance and bend deduction. Sheet metal calculator bend allowance equations and calculator. Bend radii minimum bend sizes. Here again a minimum bend radius is not necessarily the same thing as a sharp bend.

To calculate r which is the radius of the arc on the neutral axis we can use the following equation. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Whereas the outer surface is stretched. You only have to insert interior angle flange lengths k factor inside radius and material thickness.

As a result overall sheet length increases. A is the bending angle in the above equation so. Determine your minimum bend by measuring the distance from your closest feature i e. When sheet metal is bend the inside bending surface is compressed.

Choose a bend radius that matches your minimum bend.