Calculate Radius Sheet Metal

As a result overall sheet length increases.

Calculate radius sheet metal.

Bend radii minimum bend sizes. Cells on the right will output the desired values. Whereas the outer surface is stretched. Then input the bend angle to get the arc length bend allowance and bend deduction.

Sheet metal calculator bend allowance equations and calculator. You only have to insert interior angle flange lengths k factor inside radius and material thickness. 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. 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. Here again a minimum bend radius is not necessarily the same thing as a sharp bend. Choose a bend radius that matches your minimum bend. A cutout or the edge of your flange to your bend.

A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp. Best way to calculate k factor in sheet metal is by reverse engineering. Then input leg length a and b to get the flat size of the sheet. When sheet metal is bend the inside bending surface is compressed.

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 is the bending angle in the above equation so. Die edge radius in.

To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. Determine your minimum bend by measuring the distance from your closest feature i e. This change in sheet length depends on the position of neutral axis or k factor. Most sheet metal materials will conform to the calculations.

Punch edge radius in.