Sheet Metal Bend Line Calculator

Most sheet metal materials will conform to the calculations.

Sheet metal bend line calculator.

The bend allowance is the amount of the neutral axis that bends. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. Although it is an option for calculating a bend in some cad programs such as solid works it is not often referred to in the actual manufacturing process since. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal.

Most sheet metal materials will conform to the calculations. Learn more about bending. The following illustration shows the equation calculation for determining the bend line to mold allowance when forming sheet metal. This page also includes a link to a on line calculator.

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. 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. 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.

Most sheet metal materials will conform to the calculations. In the example above it is indicated by a dashed blue line. Manufacturing knowledge menu sheet metal knowledge sheet metal manufacturing and services. 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.

Therefore the bend deduction equals the difference between the mold line lengths and the total flat length. You only have to insert interior angle flange lengths k factor inside radius and material thickness. This page also includes a link to a on line sheet metal bend allowance calculator. Sheet metal bend allowance calculator determines the bend allowance amount of metal to be added to the total layout when forming sheet metal.

Cells on the right will output the desired values. Code to add this calci to your website. In the example above it is indicated by a dashed blue line. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched.

As this happens you gain a small amount of total length in your part. The values of the setback bend allowance and bend deduction can be calculated from the sheet thickness bend radius bend angle and k factor. The mold line lengths are the distances measured to the outside mold line and are equal to the flange lengths plus the setback.