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. The bending angle is 90 sheet thickness 5 mm and the inside radius is 6 mm. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. 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. 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. We want to know the final length of the detail. First we must start with the k factor.

What is the minimum radius. Sharp inside bend radius in sheetmetal parts can cause material flow problems in soft material and fracturing in hard material. The problem with bending too tightly. For example the minimum bending radius of aluminium is determined by multiplying the sheet thickness by a factor of 2.

For steel the factor is 1. But for harder materials e g. 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 minimum bend radius data shown in these charts is measured to the inside of the bend.

The most common problem with bending a piece of sheet metal too tightly is. It is normally expressed in terms of multiples of the material thickness e g. If your bend radius needs to be adjusted a member of engineering design services team will contact you before your design is manufactured. In this case the minimum radius equals the respective sheet thickness.

Crca inside bend radius equal to 0 65 times of sheet thickness is also enough. If a piece of material is bent too tightly problems can occur. If the punch nose radius. As an example if you want to bend 24 gauge sheet metal at a 90 angle the calculation would be.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. To ascertain your k factor inside radius and material thickness expressed as a decimal you should use an bend allowance chart.