Bending Corners In Sheet Metal

Don t bend to a sharp internal corner.

Bending corners in sheet metal.

If you bend to a sharp inside corner with sheet metal you ll be adding a ton of internal stresses. The diagram shows one such mechanism. If no relief distance is called out on the print and you are using a large bend radius with this type of notch then to be safe use a minimum distance of the material the bend radius. See the pic below for solid model corner.

Bend reliefs in sheet metal. This is done through the application of force on a workpiece. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. Even on malleable materials you can end up cracking the metal at the bend or weakening it to the point where it ll break with minimal force.

Sheet metal related searches. The force must exceed the material s yield strength to achieve a plastic deformation. Refer to the chart for values for folder as well as various press brake tooling combinations. Bending is one of the most common sheet metal fabrication operations.

Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend. The previous notches can be used with a large bend radius if a relief hole or slot is used in the corner see bend reliefs. The part was originally a solid model shown below and am attempting to create filled corners in sheetmetal because the part is made that way. Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle.

I have tried various ways in sheetmetal to fill the corner in and currently only a sweep fills in the corner but only as a surface.