Sheet Metal Bend Relief Calculator

Cells on the right will output the desired values.

Sheet metal bend relief calculator.

Refer to the chart for values for folder as well as various press brake tooling combinations. The diagram shows one such mechanism. 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.

This page also includes a link to a on line sheet metal bend allowance calculator. 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. Note that the bend angle is the excluded angle not the included angle. Most sheet metal materials will conform to the calculations.

You also have access to our team of knowledgeable engineers to optimize part designs and user friendly online resources. Sheet metal bend allowance calculator determines the bend allowance amount of metal to be added to the total layout when forming sheet metal. Swfobj src http sheetmetal me wp content uploads 2011 05 bend allowance calculator swf width 395 height 180 bend allowance formula. Geometry of tooling imposes a minimum bend dimension.

Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend. You only have to insert interior angle flange lengths k factor inside radius and material thickness. 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 bend allowance added to the flange lengths is equal to the total flat length of the part.

Sheet metal calculator bend allowance equations and 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. In the example above it is indicated by a dashed blue line. It simply processes these variables through the equations we will discuss below.

The bend allowance is the amount of the neutral axis that bends. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. Below is our simple bend allowance calculator it works by inputing the material thickness bend angle inside radius and k factor. Most sheet metal materials will conform to the calculations.