Calculate Radius Sheet Metal

Ultimate tensile strength psi.

Calculate radius sheet metal.

Punch edge radius in. Die edge radius in. Cells on the right will output the desired values. Bend radii minimum bend sizes.

Determine your minimum bend by measuring the distance from your closest feature i e. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. 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.

When sheet metal is bend the inside bending surface is compressed. 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. And by having t and the sheet thickness t we can calculate the k factor as follow. This change in sheet length depends on the position of neutral axis or k factor.

Here again a minimum bend radius is not necessarily the same thing as a sharp bend. As a result overall sheet length increases. 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.

Whereas the outer surface is stretched. 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. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r.

Sheet metal calculator bend allowance equations and calculator. Input material thickness and and inner radius to get the data of k factor y factor neutral layer. You only have to insert interior angle flange lengths k factor inside radius and material thickness. To calculate r which is the radius of the arc on the neutral axis we can use the following equation.

A cutout or the edge of your flange to your bend.