The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
Minimum bend radius 304 stainless steel sheet.
Aluminum 5052 or 3003.
The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
To get the best results a design engineer has to account for many factors such as the end use of the metal form the material the sheet metal is made of plain steel stainless steel etc and the dimensions shape of the final product.
In steel between 0 5 and 0 8 in.
Features of stainless steel sheet.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
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.
Making a custom metal form using sheet metal is a surprisingly delicate process.
Material bend radii and minimum bend size charts please note.
The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel.
The minimum inside bend radius is even larger when bending with the grain.
For hems a bend of 180 degrees it s highly desirable to use at least one material thickness for most alloys in this size range and essential for aluminum.
The bend radius you select may not be available if the geometry of the part will not allow us to bend with the specific tooling required to achieve that radius.
For thin gauges 063 and less 1 2 the material thickness for simple bends of 90 degrees or less is acceptable.
And by that i mean the cut out prior to bending comes out to the right size.
Minimum bend radius 304 stainless steel sheet.
It is possible to choose other bends if you require but additional lead time and tooling charges may apply.
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.
A general guideline the minimum metal bend radius is approximately equal to the material thickness.
For instance right now in solidworks for say 11 ga sheet metal i use a bend radii of 0 005 and a k factor of 0 275 and that seems to work pretty well when i put the flat views on my prints.