Minimum Bend Radius Steel Sheet

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Minimum bend radius steel sheet.

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. Use this document to choose values that are both manufacturable and meet your needs. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. Let s say i have a 2 mm thick sheet and i want to bend it.

The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Each and every bend in a piece of sheet metal has a certain minimum internal radius that needs to be taken into account when planning the design of a sheet metal form. Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. Since commercial sheet metal bending can be done with less concern for stresses caused during forming operation the radius can be near zero for thin sheet metal.

The minimum bend radius data shown in these charts is measured to the inside of the bend. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. Bend radii minimum bend sizes. Crca inside bend radius equal to 0 65 times of sheet thickness is also enough.

This tool allows you to determine tonnage internal radius v die opening and minimum flange you just have to insert the characteristics of the sheet metal to be bent. To keep it simple i also use a 2 mm inside radius. Recommended minimum bend radii for steel and aluminum. Thick grade 350 and 400 may have a minimum bend radius of 2 5 times the material thickness when transverse bending while longitudinal bending may require a minimum bend radius that s 3 75 times the material thickness see figure 1.

This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend. Here again a minimum bend radius is not necessarily the same thing as a sharp bend. The minimum inside bend radius is even larger when bending with the grain. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.

If a piece of material is bent too tightly problems can occur. The problem with bending too tightly. Table 1 preferred recommended 90 degree bend radii for various sheet metals. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

In steel between 0 5 and 0 8 in. But for harder materials e g. A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp.