Radii for various thicknesses expressed in terms of thickness t.
Minimum bending radius for aluminum sheet metal.
Brittle metal such as aluminum generally requires a larger bend radius than ductile material like cold rolled steel.
Use this document to choose values that are both manufacturable and meet your needs.
The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
Sophia will adjust the radii drawn in order to retain the shape of the final product.
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.
The minimum bend radius for aluminum when working with aluminum over sheet metal several variables need to be considered.
Per the aluminum association inc.
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.
3003 h14 is extremely ductile.
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It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.
The minimum bend radius data shown in these charts is measured to the inside of the bend.
It requires an inside bend radius of at least 6x the material thickness.
Bend radii minimum bend sizes.
The internal radius is determined by the tools in conjunction with the material properties.
To keep it simple i also use a 2 mm inside radius.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
At the minimum draw an internal radius of 0 5 sheet thickness in order to prevent problems with corners.
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.
Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.
Steel american iron and steel institute 1 see aisi s fabrication guidlines for cold bending thk 6061 t6.
Aluminum is typically thicker and stronger and requires more force to bend as well as consideration of edge conditions and punch nose radii.
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.
For example 6061 t6 aluminum is very difficult to bend.
The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.
