Sheet Metal Bend Radius Calculator

This page also includes a link to a on line sheet metal bend allowance calculator.

Sheet metal bend radius calculator.

The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Microform precision llc 4244 south market. The bend allowance added to the flange lengths is equal to the total flat length of the part. Therefore the bend allowance added to the flange lengths is equal to the total flat.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. To calculate r which is the radius of the arc on the neutral axis we can use the following equation. Therefore the bend deduction equals the difference between the mold line lengths and the total flat length.

Bend formula example. Discover all our calculation tools in the calculators section of the top menu. Punch edge radius in. Precision sheet metal fabrication request a quote.

As this happens you gain a small amount of total length in your part. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. Bend radii minimum bend sizes.

To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r. Online bend deduction calculator. Sheet metal calculator bend allowance equations and calculator. 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. 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. A is the bending angle in the above equation so. Ultimate tensile strength psi.

Most sheet metal materials will conform to the calculations. 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. You only have to insert interior angle flange lengths k factor inside radius and material thickness. 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. And by having t and the sheet thickness t we can calculate the k factor as follow. Die edge radius in.