The bend allowance describes the length of the neutral axis between the bend lines or in other words the arc length of the bend.
Sheet metal bend relief calculator.
The bend allowance is the amount of the neutral axis that bends.
This page also includes a link to a on line sheet metal bend allowance calculator.
Most sheet metal materials will conform to the calculations.
Cells on the right will output the desired values.
Most sheet metal materials will conform to the calculations.
Sheet metal bend allowance calculator determines the bend allowance amount of metal to be added to the total layout when forming sheet metal.
Bend allowance calculator the bend allowance and bend deduction are two measures that relate the bent length of a piece of sheet metal to the flat length.
Our sheet metal fabrication process unlike traditional sheet metal shops we have infinite capacity and an easy to use online quoting system ensuring on time shipment every time whether you need a single part or 500 parts.
The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal.
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Sheet metal calculator bend allowance equations and calculator.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a 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.
The diagram shows one such mechanism.
It simply processes these variables through the equations we will discuss below.
Therefore the bend deduction equals the difference between the mold line lengths and the total flat length.
Note that the bend angle is the excluded angle not the included angle.
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.
Geometry of tooling imposes a minimum bend dimension.
Below is our simple bend allowance calculator it works by inputing the material thickness bend angle inside radius and k factor.
The bend allowance added to the flange lengths is equal to the total flat length of the part.
In the example above it is indicated by a dashed blue line.
You also have access to our team of knowledgeable engineers to optimize part designs and user friendly online resources.
