Sheet Metal Bending Chart

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.

Sheet metal bending chart.

When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. 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. Bending is one of the most common sheet metal fabrication operations.

Sheet metal fabrication is the process of forming parts from a metal sheet by punching cutting stamping and bending. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. 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.

V die width is 6 8 times the plate thickness. 3d cad files are converted into machine code which controls a machine to precisely cut and form the sheets into the final part. 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. Bend forming 0 l a b 0 43t t thickness deduction 0 43t.

As this happens you gain a small amount of total length in your part. Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer. This is done through the application of force on a workpiece. Geometry of tooling imposes a minimum bend dimension.