Sheet Metal Bending Chart

When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched.

Sheet metal bending chart.

The gauge inside radius die opening and minimum flange length are all interconnected through different equations and relationships the air bend force. Geometry of tooling imposes a minimum bend dimension. Bend forming 0 l a b 0 43t t thickness deduction 0 43t. The force must exceed the material s yield strength to achieve a plastic deformation.

Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend. Refer to the chart for values for folder as well as various press brake tooling combinations. As this happens you gain a small amount of total length in your part. V die width is 6 8 times the plate thickness.

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. This is done through the application of force on a workpiece. Calculate unfold size with bend allowance chart. Bending is one of the most common sheet metal fabrication operations.

Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. The diagram shows one such mechanism.