Determine Natural Gravity Bend Of Sheet Aluminum

The bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length.

Determine natural gravity bend of sheet aluminum.

Determine your minimum bend by measuring the distance from your closest feature i e. A cutout or the edge of your flange to your bend. The weight of sheet is easily calculated. In order to find the k factor you will need to bend a sample piece and deduce the bend allowance.

As this happens you gain a small amount of total length in your part. And the determination of the density and relative density of non cellular plastics in the form of sheet film tube. We are here to help. 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. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Since the k factor is based on the property of the metal and its thickness there is no simple way to calculate it ahead of the first bend. Describe the determination of the specific gravity relative density and density of solid plastics in forms such as sheets rods tubes or molded items.

When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. Typically the k factor is going to be between 0 and 5. These test methods cover the qualitative and quantitative analysis of the composition of rubber products of the r family. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k.

The material thickness will be measured in decimal form not by the gauge number. 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. Most sheet metal materials will conform to the calculations. If you have any questions or want to discuss your design contact us.

You only have to insert interior angle flange lengths k factor inside radius and material thickness. Sheet metal calculator bend allowance equations and calculator. Most sheet metal materials will conform to the calculations. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.

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 allowance added to the flange lengths is equal to the total flat length. Simply multiply the appropriate alloy density see chart below by the length width and thickness of the required part see worked example below and note that we have used the density of alloy 2014 as the basis for our calculations. Cells on the right will output the desired values.