Bending Sheet Steel With A Radius

Thereby forming a certain angle and curvature shape.

Bending sheet steel with a radius.

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. Most frequently expensive sheet metal bending tools called brakes are used to bend sheet metal but you can also complete this task without one. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. Commonly used bends include v bend z bend offset bend and hemming bend etc.

The force must exceed the material s yield strength to achieve a plastic deformation. Bend radii minimum bend sizes. 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. Minimum sheet metal flange bend length is required to avoid cracks in the bending area.

The bending radius must be at least 0 8 t to 2 t for sheet steel. In steel between 0 5 and 0 8 in. Bending is a stamping process that uses pressure to force the material to plastically deform. If you re bending 0 020 thick material use a 0 020 radius.

It shall be equal to three times of sheet thickness plus bend radius. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. You only have to insert interior angle flange lengths k factor inside radius and material thickness. Bending is one of the most common sheet metal fabrication operations.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. For most applications with stainless steel or aluminum you can get away with a zero radius bend on anything under 0 050 thick. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. This is done through the application of force on a workpiece.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle. Minimum sheet metal flange bend length 3 x sheet thickness bend radius. 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.

Use this document to choose values that are both manufacturable and meet your needs.