If a piece of material is bent too tightly problems can occur.
Minimum bend radius steel sheet.
A sharp bend will always be less than a minimum bend radius but a minimum bend radius does not need to be sharp.
To keep it simple i also use a 2 mm inside radius.
Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried.
The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
The minimum inside bend radius is even larger when bending with the grain.
The minimum bend radius data shown in these charts is measured to the inside of the bend.
Discover all our calculation tools in the calculators section of the top menu.
It is possible to choose other bends if you require but additional lead time and tooling charges may apply.
But for harder materials e g.
The problem with bending too tightly.
The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.
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.
Bend radii minimum bend sizes.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
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.
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.
Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.
Table 1 preferred recommended 90 degree bend radii for various sheet metals.
Recommended minimum bend radii for steel and aluminum.
Let s say i have a 2 mm thick sheet and i want to bend it.
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.
It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.
Crca inside bend radius equal to 0 65 times of sheet thickness is also enough.
Use this document to choose values that are both manufacturable and meet your needs.
The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.
