Bend Radius Sheet Metal Table

A cutout or the edge of your flange to your bend.

Bend radius sheet metal table.

We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. For example if the thickness of the sheet is 1 mm the minimum bend radius should be 1 mm. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. 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.

Thus the smallest radius of any bend in a sheet should be at least equal to the thickness of the sheet. Preferred recommended 90 degree bend radii for various sheet metals. This punch and die set would be mounted in a press. If these guidelines are not followed more research and or some form of analysis may be requried.

You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. Sheet metal bend radii. Another important consideration. Where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.

We are here to help. Below is xometry s minimum bend radius reference table which is based on theoretical sheet metal gauge thicknesses. If you have any questions or want to discuss your design contact us. It is possible to choose other bends if you require but additional lead time and tooling charges may apply.

A section view of a typical punch and die set used to create sheet metal bends. To use the tables below. Determine your minimum bend by measuring the distance from your closest feature i e. To keep it simple i also use a 2 mm inside radius.

When the proportional limits of a specific material are reached or exceeded the material remains bent figure one. The material thickness will be measured in decimal form not by the gauge number. Choose a bend radius that matches your minimum bend. 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.

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. Steel american iron and steel institute. Let s say i have a 2 mm thick sheet and i want to bend it.