Bend Radius Sheet Metal Table

To keep it simple i also use a 2 mm inside radius.

Bend radius sheet metal table. This punch and die set would be mounted in a press. The material thickness will be measured in decimal form not by the gauge number. Determine your minimum bend by measuring the distance from your closest feature i e. Let s say i have a 2 mm thick sheet and i want to bend it.

The bend radius of a sheet metal design will be based on the wall thickness of the part and the tooling that is available in house. Steel american iron and steel institute. I can now see that the minimum flange length is 8 5 mm for such a bend so i have to keep it in mind when designing. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.

You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. Springback and inside radius calculator for sheet metal. Preferred recommended 90 degree bend radii for various sheet metals. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

Figure 2 shows us a typical punch and die set used to bend sheet metal. To use the tables below. Below is xometry s minimum bend radius reference table which is based on theoretical sheet metal gauge thicknesses. Another important consideration.

A section view of a typical punch and die set used to create sheet metal bends. A cutout or the edge of your flange to your bend. If these guidelines are not followed more research and or some form of analysis may be requried. When the proportional limits of a specific material are reached or exceeded the material remains bent figure one.

We are here to help. Thus the smallest radius of any bend in a sheet should be at least equal to the thickness of the sheet. Sheet metal bend radii. It is possible to choose other bends if you require but additional lead time and tooling charges may apply.

This springback and inside radius calculator estimates the amount of angular change and the relaxing of bend radius that occurs when metal is bent and released from pressure. Choose a bend radius that matches your minimum bend. For example if the thickness of the sheet is 1 mm the minimum bend radius should be 1 mm.