Calculate Radius Sheet Metal

Ultimate tensile strength psi.

Calculate radius sheet metal.

Determine your minimum bend by measuring the distance from your closest feature i e. A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp. Punch edge radius in. 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.

Here again a minimum bend radius is not necessarily the same thing as a sharp bend. This page also includes a link to a on line sheet metal bend allowance calculator. Cells on the right will output the desired values. 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. Most sheet metal materials will conform to the calculations. And by having t and the sheet thickness t we can calculate the k factor as follow. As a result overall sheet length increases.

Then input the bend angle to get the arc length bend allowance and bend deduction. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Bend radii minimum bend sizes. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r.

Choose a bend radius that matches your minimum bend. Best way to calculate k factor in sheet metal is by reverse engineering. Sheet metal calculator bend allowance equations and calculator. When sheet metal is bend the inside bending surface is compressed.

This change in sheet length depends on the position of neutral axis or k factor. A is the bending angle in the above equation so. Whereas the outer surface is stretched. A cutout or the edge of your flange to your bend.

Then input leg length a and b to get the flat size of the sheet.