Minimum Bend Radius Sheet Metal Steel

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.

Minimum bend radius sheet metal steel.

However it is important to know that this is just a broadly applicable rule of thumb you can follow for making bends in steel. The minimum inside bend radius is even larger when bending with the grain. Sheet metal bend radii. A general guideline the minimum metal bend radius is approximately equal to the material thickness.

Minimum bend radius chart. In general parts should be designed with a minimum 1t bend radius radius matching the sheet thickness for the simplest setup and to ensure we can form the intended geometry. For bent sheet metal variation in the raw material thickness increases the recommended precision to 0 010 in. Also note that all these are just examples.

In steel between 0 5 and 0 8 in. Steel american iron and steel institute. So if the metal plate is 75 thick you would multiply 4 x 75 3 so your minimum inside bend radius would be roughly 3 times the thickness of the material in this case or 2 25. The max minimum inside radius sheet metal unhardened can be formed on the brake press is 63 x material thickness.

Minimum bend includes minimum closeness of cutout to bend radius cold rolled steel 14 gauge 0 075 1 91mm. It cannot be formed tighter without creasing and forming a v shape along the bend. Preferred recommended 90 degree bend radii for various sheet metals. Where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.

Aluminum 5052 or 3003. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. If your bend radius needs to be adjusted a member of engineering design services team will contact you before your design is manufactured. In general mild steel and type 304 stainless sheet can be formed with sharp bends 1t without concern up to 1 8 thick.

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. Runs right at the limit of precision flat sheet metal in a job shop environment. An inside radius of the material thickness is typical forming practice. 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.

If these guidelines are not followed more research and or some form of analysis may be requried.