Copper Sheet Bending Radius

We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts.

Copper sheet bending radius.

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. The bending angle is 90 sheet thickness 5 mm and the inside radius is 6 mm. We want to know the final length of the detail.

Bend radii minimum bend sizes. First we must start with the k factor. Use this document to choose values that are both manufacturable and meet your needs. To ascertain your k factor inside radius and material thickness expressed as a decimal you should use an bend allowance chart.

Bend radius is the minimum radius a pipe cable wire sheet cable tube or hose can bend without damaging it including kinking. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. 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.

The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. 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. Each material to be worked also has its own conversion factor. What is bending radius and minimum bending radius.

For steel the factor is 1. You can check full details in this post. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

A soft metal can be especial ly troublesome when bending tubing smaller than 3 4 inch in diameter a tight radius bend for copper is any bend with a radius equal to or less than approximately 2 5 times the tube s od that s 2 5d in tube fabricating jargon. As an example if you want to bend 24 gauge sheet metal at a 90 angle the calculation would be. Another way to determine the k factor is by following the rule of thumb. The minimum bend radius is the radius below which an object should not be bent.