Calculate Bend Angle Sheet Metal

Automatically calculate bend deduction bend allowance and k factor for sheet metal fabrication and forming.

Calculate bend angle sheet metal.

Tonnage charts bend deduction bend allowance and other forming calculations and charts often refer to a 90 bend. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. Therefore the bend allowance added to the flange lengths is equal to the total flat length. Precision sheet metal fabrication request a quote.

Material thickness microform bend deduction. The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Sheet metal bend allowance calculator determines the bend allowance amount of metal to be added to the total layout when forming sheet metal.

Effective k factor. A bend equal to 90. Most sheet metal materials will conform to the calculations. 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. The material thickness will be measured in decimal form not by the gauge number. As this happens you gain a small amount of total length in your part. Like previous scenarios let s start by calculating leg length 1.

Bending angles greater than 90 degrees. Bend angle a degrees thickness t inches inside bend radius r inches must be greater than 90 and less than 180 degrees. Online bend deduction calculator. To calculate the neutral axis distance from the inner face t we can subtract inside bend radius from r.

The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend. And by having t and the sheet thickness t we can calculate the k factor as follow. Right angles are the most common feature found in most sheet metal fabrication. This type of angle can also be referred to as a square bend.

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. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.