Bend Radius Sheet Metal Table

Determine your minimum bend by measuring the distance from your closest feature i e.

Bend radius sheet metal table.

Below is xometry s minimum bend radius reference table which is based on theoretical sheet metal gauge thicknesses. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. Choose a bend radius that matches your minimum bend. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

Thus the smallest radius of any bend in a sheet should be at least equal to the thickness of the sheet. 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. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. When the proportional limits of a specific material are reached or exceeded the material remains bent figure one.

To keep it simple i also use a 2 mm inside radius. Where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. Springback and inside radius calculator for sheet metal. Let s say i have a 2 mm thick sheet and i want to bend it.

This punch and die set would be mounted in a press. To use the tables below. If you have any questions or want to discuss your design contact us. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.

We are here to help. A cutout or the edge of your flange to your bend. Figure 2 shows us a typical punch and die set used to bend sheet metal. 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 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. Preferred recommended 90 degree bend radii for various sheet metals. A section view of a typical punch and die set used to create sheet metal bends.

If these guidelines are not followed more research and or some form of analysis may be requried. 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. For example if the thickness of the sheet is 1 mm the minimum bend radius should be 1 mm.