Bending Radius Aluminium Sheet

When sheet metal is bent it stretches in length.

Bending radius aluminium sheet.

Minimum recommended sheet metal bend length. Bend radius throughout the sheet metal design is kept constant to take the advantage of using the same tool during manufacturing. Bending is a stamping process that uses pressure to force the material to plastically deform. Steel american iron and steel institute 1 see aisi s fabrication guidlines for cold bending thk 6061 t6.

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. A bending brake is a specialized metalworking tool used to create precise linear bends and folds in light gauge sheet metals like the kind used to make flashing for doors windows and roofs. The bend radius refers to the inside radius. Minimum sheet metal bend length recommendations.

Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape. The force must exceed the material s yield strength to achieve a plastic deformation. 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. Bending is one of the most common sheet metal fabrication operations.

For most applications with stainless steel or aluminum you can get away with a zero radius bend on anything under 0 050 thick. The bend radius you select may not be available if the geometry of the part will not allow us to bend with the specific tooling required to achieve that radius. Aluminum minimum bend radii for 90 degree cold forming of sheet and plate. 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.

Per the aluminum association inc. The bend deduction is the amount the sheet metal will stretch when bent as measured from the outside edges of the bend. Minimum sheet metal flange bend length is required to avoid cracks in the bending area. If you re bending 0 020 thick material use a 0 020 radius.

The minimum bend radius data shown in these charts is measured to the inside of the bend. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Thereby forming a certain angle and curvature shape. Purchase a metal bending brake online or at your local hardware store.

Commonly used bends include v bend z bend offset bend and hemming bend etc. Radii for various thicknesses expressed in terms of thickness t. If your bend radius needs to be adjusted a member of engineering design services team will contact you before your design is manufactured.