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.

The material thickness will be measured in decimal form not by the gauge number. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. 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 cutout or the edge of your flange to your bend. 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. 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.

Choose a bend radius that matches your minimum bend. These test methods cover the qualitative and quantitative analysis of the composition of rubber products of the r family. 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. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched.

This page also includes a link to a on line sheet metal bend allowance calculator. The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend. Typically the k factor is going to be between 0 and 5. As this happens you gain a small amount of total length in your part.

How to calculate the weight. Cells on the right will output the desired values. Sheet metal calculator bend allowance equations and calculator. Sheet metal bend allowance calculator determines the bend allowance amount of metal to be added to the total layout when forming sheet metal.

You only have to insert interior angle flange lengths k factor inside radius and material thickness. Describe the determination of the specific gravity relative density and density of solid plastics in forms such as sheets rods tubes or molded items. In order to find the k factor you will need to bend a sample piece and deduce the bend allowance. The weight of sheet is easily calculated.

Determine your minimum bend by measuring the distance from your closest feature i e. If you have any questions or want to discuss your design contact us. Therefore the bend allowance added to the flange lengths is equal to the total flat length. Most sheet metal materials will conform to the calculations.