Sheet Metal Bending Radius Chart

We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

Sheet metal bending radius chart.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. Use this document to choose values that are both manufacturable and meet your needs. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Bend radii minimum bend sizes. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.

The minimum bend radius data shown in these charts is measured to the inside of the bend. Let s say i have a 2 mm thick sheet and i want to bend it. To keep it simple i also use a 2 mm inside radius. 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.

The material thickness will be measured in decimal form not by the gauge number. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.