O 0 0 0 1t 1t 1t 11 2t 2t t4 0 0 1t 11 2 t21 2 3t 31 2t 4t t6 1t 1t 11 2t 21 2t 3t 31 2 t41 2 5t.
Minimum bend radius aluminum sheet.
Radii for various thicknesses expressed in terms of thickness t.
The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.
It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.
Aluminum minimum bend radii for 90 degree cold forming of sheet and plate.
The minimum inside bend radius is even larger when bending with the grain.
But for harder materials e g.
The problem with bending too tightly.
Table 1 preferred recommended 90 degree bend radii for various sheet metals.
Per the aluminum association inc.
Recommended minimum bend radii for steel and aluminum.
Bend radii minimum bend sizes.
The minimum bend radius for aluminum when working with aluminum over sheet metal several variables need to be considered.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
Crca inside bend radius equal to 0 65 times of sheet thickness is also enough.
The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
Minimum inside bend radius for sheet metal recommended inside bend radius for sheet metal parts should be equal to material thickness.
Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried.
Aluminum is typically thicker and stronger and requires more force to bend as well as consideration of edge conditions and punch nose radii.
If a piece of material is bent too tightly problems can occur.
It is possible to choose other bends if you require but additional lead time and tooling charges may apply.
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.
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.
Use this document to choose values that are both manufacturable and meet your needs.
Recommended minimum bend radii for 90 degree cold forming of sheet plate temper 1 64 in.
In steel between 0 5 and 0 8 in.
