Standard Bending Radius For Sheet Metal

Regardless of what s called on the print this setup will produce an inside bend radius in the part much greater than that of the punch nose.

Standard bending radius for sheet metal.

You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. As another example say you re working with 0 125 in thick material. Recommended inside bend radius for sheet metal parts should be equal to material thickness. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

Use this document to choose values that are both manufacturable and meet your needs. Crca inside bend radius equal to 0 65 times of sheet thickness is also enough. Material thickness or 0 1575 in. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.

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. Keeping the bend radius consistent will also make parts more cost effective. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. It is possible to choose other bends if you require but additional lead time and tooling charges may apply.

Sheet metal bend brakes are used to bend material into the parts desired geometry. But for harder materials e g. The material thickness will be measured in decimal form not by the gauge number. In this case the minimum producible inside bend radius is 63 percent of that 0 250 in.

We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. The minimum bend radius data shown in these charts is measured to the inside of the bend. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Bend radii minimum bend sizes.

Supplying 3d models without considering these factors increases the chance. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. Recommended minimum bend radii for steel and aluminum.

Bending is one of the most common sheet metal fabrication operations. This is done through the application of force on a workpiece. Specifing a bend radius from here will help prevent hair line cracks. Usually the preferred distance between holes and a bend is 1 5 times the sheet thickness plus the bend radius 1 5t h.