For steel the factor is 1.
Minimum bending radius copper sheet.
For ordinary low carbon steel plate anti rust aluminum plate yellow copper purple copper etc the inner radius 0 2 is no problem but for some high carbon steel hard aluminum super hard aluminum the use 0 2 radius will lead to bending fracture or the outer radius crack.
Radii for various thicknesses expressed in terms of thickness t.
As a general rule the minimum bending radius for copper bar is equal to the thickness of the bar.
Let s say i have a 2 mm thick sheet and i want to bend it.
The first uses bending springs and the second a.
What is bending radius and minimum bending radius.
If copper has to be bent a factor of 1 5 must be used.
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.
The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
In this case the minimum radius equals the respective sheet thickness.
To keep it simple i also use a 2 mm inside radius.
Bend radius is the minimum radius a pipe cable wire sheet cable tube or hose can bend without damaging it including kinking.
C opper and coppe r alloy bar can be bent using standard bending methods.
The minimum inside bend radius is even larger when bending with the grain.
I can now see that the minimum flange length is 8 5 mm for such a bend so i have to keep it in mind when designing.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.
The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.
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.
Most copper pipe tube can be readily bent and two main methods are employed.
Tube and pipe bending.
Per the aluminum association inc.
The minimum bend radius data shown in these charts is measured to the inside of the bend.
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.
The smaller the radius the greater is the flexibility of the material.
Aluminum minimum bend radii for 90 degree cold forming of sheet and plate.
It is possible to choose other bends if you require but additional lead time and tooling charges may apply.
Material bend radii and minimum bend size charts please note.
In steel between 0 5 and 0 8 in.
