Bending A Curve In Sheet Metal

Finally bend the sheet up by hand to the angle desired.

Bending a curve in sheet metal.

Sheet metal bending is the plastic deformation of the work over an axis creating a change in the part s geometry. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. Bending is one of the most common sheet metal fabrication operations. If you want a sharp 90 bend tap along the crease with a mallet.

The inside bend radius should be equal to the thickness of the material that you re forming. This applied force is also called the bending moment. Bending is the forming of sheet metal by application of force which exerts pressure on a certain length of material either at a certain point or linear as an evenly distributed weight. 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.

If you re bending 0 020 thick material use a 0 020 radius. The force must exceed the material s yield strength to achieve a plastic deformation. To think about bending a sheet of metal that has appreciable thickness focus on an imaginary central sheet the so called neutral line or neutral axis within the thickness. The force of the bending moment determines the degree of deformation.

Make sure the first bend mark lines up exactly with the curve in the form so that the bending will begin in the right spot. Next place the wood parallel and slightly behind the bending line. Bending sheet metal by hand is a manageable task if the piece of sheet metal is small and thin enough to handle. Similar to other metal forming processes bending changes the shape of the work piece while the volume of material will remain the.

Sheet metal bending bending of sheet metal is a common and vital process in manufacturing industry. Mark a bend line and place the sheet metal on the edge of your bench. Using protective gloves hold the free end of the metal sheet with one hand and with the other hand use a mallet or hammer to begin bending the sheet down and around the curved radius of the wood form.