Bending Sheet Steel With A Radius

This is done through the application of force on a workpiece.

Bending sheet steel with a radius.

Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Minimum sheet metal flange bend length 3 x sheet thickness bend radius. In steel between 0 5 and 0 8 in.

Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. With this free online tool we quickly get the sheet metal bend deduction and therefore the sheet metal blank initial flat length from the finished part measurements. Larger bend radii require about the same force for bottoming as they do for air bending however smaller radii require greater force up to five times as much than air bending.

Use this document to choose values that are both manufacturable and meet your needs. Cells on the right will output the desired values. The bending radius must be at least 0 8 t to 2 t for sheet steel. Thereby forming a certain angle and curvature shape.

In other words if you re bending 1 8 sheet use a tool with a 1 8 radius to form the inside of the bend. Thick grade 350 and 400 may have a minimum bend radius of 2 5 times the material thickness when transverse bending while longitudinal bending may require a minimum bend radius that s 3 75 times the material thickness see figure 1. Bend radii minimum bend sizes. The force must exceed the material s yield strength to achieve a plastic deformation.

Commonly used bends include v bend z bend offset bend and hemming bend etc. Minimum sheet metal flange bend length is required to avoid cracks in the bending area. For most applications with stainless steel or aluminum you can get away with a zero radius bend on anything under 0 050 thick. Bending is one of the most common sheet metal fabrication operations.

Bending is a stamping process that uses pressure to force the material to plastically deform. The sheet metal bending height should be at least 2 times the thickness of the sheet metal plus the bending radius that is h 2t r. It shall be equal to three times of sheet thickness plus bend radius. It is possible to choose other bends if you require but additional lead time and tooling charges may apply.

The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.