Minimum Bend Radius Formula For Sheet Metal

The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.

Minimum bend radius formula for sheet metal.

The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. If you are working with a material thickness of 0 100 in multiply that by 0 63 to get a minimum inside bend radius of 0 063 in. For this material this is the minimum producible inside radius with air forming. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

Use this document to choose values that are both manufacturable and meet your needs. Leg length of the workpiece from the edge to the outside tangent point of the bend radius. For a sheet metal stock with inch thickness determine the minimum tool radius for both the steel and aluminum alloys that will not tear the material. I have already learned about the following formulas.

Kink a light bend typically between 5 and 15 which is used to stiffen a flat piece of metal. For example in the case of 1 0mm plate to the edge distance 1 5 then the minimum z bending h 6 1 2 1 5 1 8 1 2 1 6 4. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. It shall be equal to three times of sheet thickness plus bend radius.

Assume the sheet of material is in pure bending i e no additional tension is applied during forming. Minimum sheet metal flange bend length 3 x sheet thickness bend radius. Discover all our calculation tools in the calculators section of the top menu. However it is important to know that this is just a broadly applicable rule of thumb you can follow for making bends in steel.

Bend radii minimum bend sizes. Large radius bending also known as r bending large radius bending is when the inside radius is greater than 8 times the material thickness. 6 t 2 edge distance of v groove 1 8 t 2 t see the picture. The radius is produced as a percentage of the die opening regardless of the die style.