Calculate Radius Sheet Metal

Cells on the right will output the desired values.

Calculate radius sheet metal.

A cutout or the edge of your flange to your bend. Input material thickness and and inner radius to get the data of k factor y factor neutral layer. Determine your minimum bend by measuring the distance from your closest feature i e. Most sheet metal materials will conform to the calculations.

Bend radii minimum bend sizes. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Die edge radius in. As a result overall sheet length increases.

To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. 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. This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend.

When sheet metal is bend the inside bending surface is compressed. This page also includes a link to a on line sheet metal bend allowance calculator. Then input leg length a and b to get the flat size of the sheet. Whereas the outer surface is stretched.

Punch edge radius in. Choose a bend radius that matches your minimum bend. Sheet metal calculator bend allowance equations and calculator. Best way to calculate k factor in sheet metal is by reverse engineering.

Then input the bend angle to get the arc length bend allowance and bend deduction. A is the bending angle in the above equation so. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Ultimate tensile strength psi.

This change in sheet length depends on the position of neutral axis or k factor.