Calculate Radius Sheet Metal

A is the bending angle in the above equation so.

Calculate radius sheet metal.

Die edge radius in. A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp. Then input leg length a and b to get the flat size of the sheet. Here again a minimum bend radius is not necessarily the same thing as a sharp bend.

This change in sheet length depends on the position of neutral axis or k factor. This page also includes a link to a on line sheet metal bend allowance calculator. Bend radii minimum bend sizes. Cells on the right will output the desired values.

When sheet metal is bend the inside bending surface is compressed. Whereas the outer surface is stretched. 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 calculator bend allowance equations and calculator.

The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Determine your minimum bend by measuring the distance from your closest feature i e. Ultimate tensile strength psi. As a result overall sheet length increases.

Most sheet metal materials will conform to the calculations. 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. Best way to calculate k factor in sheet metal is by reverse engineering.

And by having t and the sheet thickness t we can calculate the k factor as follow. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Punch edge radius in. A cutout or the edge of your flange to your bend.

Choose a bend radius that matches your minimum bend.