This page also includes a link to a on line sheet metal bend allowance calculator.
Sheet metal radius calculator.
Cells on the right will output the desired values.
Use this document to choose values that are both manufacturable and meet your needs.
Punch edge radius in.
Value of bend deduction and flat pattern are shown in result section.
Whereas the outer surface is stretched.
Most sheet metal materials will conform to the calculations.
As a result overall sheet length increases.
Then input leg length a and b to get the flat size of the sheet.
You just have to insert the characteristics of the sheet metal to be bent.
You only have to insert interior angle flange lengths k factor inside radius and material thickness.
When it comes to curved steel finding the precise measurements is a challenging undertaking.
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.
Die edge radius in.
A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp.
Enter flange length internal radius and thickness values.
Then input the bend angle to get the arc length bend allowance and bend deduction.
The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal.
Input material thickness and and inner radius to get the data of k factor y factor neutral layer.
When sheet metal is bend the inside bending surface is compressed.
Here are the steps to be followed to calculate sheet metal flat length.
Alternatively you can design with.
Sheet metal calculator bend allowance equations and calculator.
Best way to calculate k factor in sheet metal is by reverse engineering.
It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.
Use k factor calculator to calculate k factor values.
To solve this cmrp provides easy to use measurement calculators.
Enter k factor values.
This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend.
This change in sheet length depends on the position of neutral axis or k factor.
Ultimate tensile strength psi.