Sheet Metal Radius Calculator

And by having t and the sheet thickness t we can calculate the k factor as follow.

Sheet metal radius calculator.

The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Bend allowance calculator tells you the amount of metal to add. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. This change in sheet length depends on the position of neutral axis or k factor.

To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. Use this document to choose values that are both manufacturable and meet your needs. Whereas the outer surface is stretched. Alternatively you can design with.

The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend. 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. A is the bending angle in the above equation so. 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. Cells on the right will output the desired values. This tool allows you to determine tonnage internal radius v die opening and minimum flange you just have to insert the characteristics of the sheet metal to be bent. The most important consideration when bending metal on a brake is the minimum bend radius.

The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Ultimate tensile strength psi. This page also includes a link to a on line sheet metal bend allowance calculator.

Here again a minimum bend radius is not necessarily the same thing as a sharp bend. Most sheet metal materials will conform to the calculations. This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend. Punch edge radius in.

Die edge radius in. Discover all our calculation tools in the calculators section of the top menu. When sheet metal is bend the inside bending surface is compressed. As a result overall sheet length increases.