Copper Sheet Bending Radius

The minimum bend radius data shown in these charts is measured to the inside of the bend.

Copper sheet bending radius.

What is bending radius and minimum bending radius. For example the minimum bending radius of aluminium is determined by multiplying the sheet thickness by a factor of 2. If copper has to be bent a factor of 1 5 must be used. 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.

The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Another way to determine the k factor is by following the rule of thumb. First we must start with the k factor. We want to know the final length of the detail.

The minimum bend radius is the radius below which an object should not be bent. Use this document to choose values that are both manufacturable and meet your needs. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. The smaller the radius the greater is the flexibility of the material.

We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. For steel the factor is 1. Bend radius is the minimum radius a pipe cable wire sheet cable tube or hose can bend without damaging it including kinking. In this case the minimum radius equals the respective sheet thickness.

To ascertain your k factor inside radius and material thickness expressed as a decimal you should use an bend allowance chart. You can check full details in this post. The bending angle is 90 sheet thickness 5 mm and the inside radius is 6 mm. Each material to be worked also has its own conversion factor.

As an example if you want to bend 24 gauge sheet metal at a 90 angle the calculation would be. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. 0 017453 x 90 x 0 020 0 33 x 0 024 0 0438558984 inch bend allowance. Bend radii minimum bend sizes.