Bend Radius Copper Sheet
It is the smallest inside bend radius that you can place in a piece of material before the tensile forces on the outside of the bend begin to tear the grains in the material apart.
Bend radius copper sheet. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Cutting copper sheet and plate. To ascertain your k factor inside radius and material thickness expressed as a decimal you should use an bend allowance chart. Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried.
If copper has to be bent a factor of 1 5 must be used. It is normally expressed in terms of multiples of the material thickness e g. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Table 1 preferred recommended 90 degree bend radii for various sheet metals.
In this case the minimum radius equals the respective sheet thickness. If the punch nose radius. The minimum bend radius data shown in these charts is measured to the inside of the bend. 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.
0 017453 x 90 x 0 020 0 33 x 0 024 0 0438558984 inch bend allowance. For example the minimum bending radius of aluminium is determined by multiplying the sheet thickness by a factor of 2. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. Specifing a bend radius from here will help prevent hair line cracks.
For steel the factor is 1. Most copper pipe tube can be readily bent and two main methods are employed. First we must start with the k factor. If your bend radius needs to be adjusted a member of engineering design services team will contact you before your design is manufactured.
As a general rule the minimum bending radius for copper bar is equal to the thickness of the bar. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. Recommended minimum bend radii for steel and aluminum. We want to know the final length of the detail.
What is the minimum radius. As an example if you want to bend 24 gauge sheet metal at a 90 angle the calculation would be. The first uses bending springs and the second a pipe bending machine.