Bend Radius For Sheet Metal Rule Of Thumb

Finding the true minimum bend radius for steel or aluminum plate requires a little research.

Bend radius for sheet metal rule of thumb.

R v 8. If you re bending 0 020 thick material use a 0 020 radius. This value will vary by grade. The force must exceed the material s yield strength to achieve a plastic deformation.

4 0 5 2. Here s a good rule of thumb for most materials. But the material s resistance or uts will affect the radius too. Relief cuts for bends must be at least one sheet s thickness in width and be longer than the bend radius.

The problem with bending too tightly. If the material is 0 5 in. This is done through the application of force on a workpiece. The most common problem with bending a piece of sheet metal too tightly is.

The inside bend radius should be equal to the thickness of the material that you re forming. Now multiply that answer by the plate thickness. If a piece of material is bent too tightly problems can occur. The distance between the sheet metal bend line and edge of the hole should be two times or greater the thickness of the sheet metal.

The more ductile the sheet metal the. Minimum sheet metal bending radius. So in this case the minimum inside bend radius is 2 times the material thickness. Each and every bend in a piece of sheet metal has a certain minimum internal radius that needs to be taken into account when planning the design of a sheet metal form.

It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Usually the preferred distance between holes and a bend is 1 5 times the sheet. 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. For thicknesses of mild steel up to in the radius r of a bend is normally 1 8 of the v opening resulting in this formula.

If the steel has a tensile reduction value of 10 percent divide 50 by that value. Use this document to choose values that are both manufacturable and meet your needs. Also spaces between pierced holes and bends should accommodate the bend radius h and be far enough from the bend. Bending is one of the most common sheet metal fabrication operations.

Greg paulsen is director of applications engineering at xometry. The sheet metal design rule of thumb in this case is. A simple rule of thumb. Minimum sheet metal bend radius depends on the selection of tool and the process.

Bend radii minimum bend sizes. Note that this is just a rule of thumb. Divide 50 by the material s tensile reduction percentage as specified by your supplier. Which can be then adjusted for other materials.