Steel Sheet Metal Minimum Bend Radius

The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.

Steel sheet metal minimum bend radius.

A general guideline the minimum metal bend radius is approximately equal to the material thickness. Maximum weight is 40 kg. This calculator predicts what the minimum bend radius should be to avoid chacking or orange peeling on the outside radius of the bend. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. If the product contains one or more sharp bends use the dimensions from the sharp tables for all bends in. Here again a minimum bend radius is not necessarily the same thing as a sharp bend. 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.

Bend radii minimum bend sizes. Use this document to choose values that are both manufacturable and meet your needs. Aluminum 5052 or 3003. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.

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. The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel. 5052 h32 aluminum bends in about the same way as mild steel. 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.

Maximum sheet thickness for all other steel is 6 mm. Recommended minimum bend radius for metal bending stainless steel and aluminum. Brittle metal such as aluminum generally requires a larger bend radius than ductile material like cold rolled steel. 3003 h14 is extremely ductile.

These dimensions are all in relation to a 90 angle. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. Maximum sheet thickness for aluminum and stainless steel is 6 mm. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

It requires an inside bend radius of at least 6x the material thickness. If a piece of material is bent too tightly problems can occur. 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. The minimum bend radius data shown in these charts is measured to the inside of the bend.

For example 6061 t6 aluminum is very difficult to bend. The problem with bending too tightly. The minimum inside bend radius is even larger when bending with the grain. Maximum dimensions are 2980 x 1200 mm.