The minimum bend radius data shown in these charts is measured to the inside of the bend.
Minimum bend radius aluminum sheet.
Crca inside bend radius equal to 0 65 times of sheet thickness is also enough.
The minimum inside bend radius is even larger when bending with the grain.
The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.
Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried.
If a piece of material is bent too tightly problems can occur.
The problem with bending too tightly.
In steel between 0 5 and 0 8 in.
Minimum inside bend radius for sheet metal recommended inside bend radius for sheet metal parts should be equal to material thickness.
The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
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.
Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.
Aluminum is typically thicker and stronger and requires more force to bend as well as consideration of edge conditions and punch nose radii.
Table 1 preferred recommended 90 degree bend radii for various sheet metals.
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.
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.
Bend radii minimum bend sizes.
Recommended minimum bend radii for steel and aluminum.
Aluminum minimum bend radii for 90 degree cold forming of sheet and plate.
Per the aluminum association inc.
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.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.
Radii for various thicknesses expressed in terms of thickness t.
But for harder materials e g.
Recommended minimum bend radii for 90 degree cold forming of sheet plate temper 1 64 in.
