Sheet Metal Bend Radius Calculator

Use this document to choose values that are both manufacturable and meet your needs.

Sheet metal bend radius calculator.

Bend formula example. A is the bending angle in the above equation so. Therefore the bend allowance added to the flange lengths is equal to the total flat. Microform precision llc 4244 south market.

The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend. Sheet metal calculator bend allowance equations and calculator. The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. 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.

Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated. Punch edge radius in. Automatically calculate bend deduction bend allowance and k factor for sheet metal fabrication and forming. You only have to insert interior angle flange lengths k factor inside radius and material thickness.

The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. As this happens you gain a small amount of total length in your part. The bend allowance added to the flange lengths is equal to the total flat length of the part. Bend radii minimum bend sizes.

Precision sheet metal fabrication request a quote. Discover all our calculation tools in the calculators section of the top menu. Most sheet metal materials will conform to the calculations. 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.

Cells on the right will output the desired values. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched. Online bend deduction calculator.

Ultimate tensile strength psi. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. This page also includes a link to a on line sheet metal bend allowance calculator.

Die edge radius in. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. And by having t and the sheet thickness t we can calculate the k factor as follow.