Sheet Metal Bending Chart

Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape.

Sheet metal bending chart.

L unfold length a outside size b outside size k k factor none 90 bend unfold according to the neutral layer the distance from neutral to sheet inner side is t 3 inner r can refer to the above chart. Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer. Sheet metal fabrication is the process of forming parts from a metal sheet by punching cutting stamping and bending. V die width is 6 8 times the plate thickness.

An air bend force chart or force chart breaks down a number of key components of sheet metal bending in an easy to reference format. Geometry of tooling imposes a minimum bend dimension. 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. Calculate unfold size with bend allowance chart.

The force must exceed the material s yield strength to achieve a plastic deformation. Refer to the chart for values for folder as well as various press brake tooling combinations. The gauge inside radius die opening and minimum flange length are all interconnected through different equations and relationships the air bend force. The diagram shows one such mechanism.

This is done through the application of force on a workpiece. When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. As this happens you gain a small amount of total length in your part.