Sheet Metal Bend Radius Vs Thickness

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.

Sheet metal bend radius vs thickness.

We want to know the final length of the detail. It is possible to choose other bends if you require but additional lead time and tooling charges may apply. The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Bend radii minimum bend sizes.

4 0 5 2. The bending angle is 90 sheet thickness 5 mm and the inside radius is 6 mm. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. First we must start with the k factor.

In a previous bending basics article you mention a material s tensile reduction percentage used for calculating the minimum inside bend radius of various metals. The material thickness will be measured in decimal form not by the gauge number. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. You described a rough rule to find a steel s minimum bend radius.

The bend deduction is the amount the sheet metal will stretch when bent as measured from the outside edges of the bend. So in this case the minimum inside bend radius is 2 times the material thickness. Generally speaking the thicker a piece of sheet metal is the wider the internal bend radius will have to be. If the material is 0 5 in.

Note that this is just a rule of thumb. The thickness of the metal. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. When sheet metal is bent it stretches in length.

This apply for sheet metal with 2 mm and lesser and obvious tonnage of the machine wi. The formed bend radius is dependent upon the dies used the material properties and the material thickness. Similarly the harder a piece of metal is the more room you ll have to allocate for the bend as well or risk fracturing the sheet metal. It depends which material you are bending and what is the requirement.

Use this document to choose values that are both manufacturable and meet your needs. Finding the true minimum bend radius for steel or aluminum plate requires a little research. Now multiply that answer by the plate thickness. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii.

The bend radius refers to the inside radius. Divide 50 by the material s reduction percentage as specified by the material supplier subtract by 1 and then multiply by the plate thickness. The hardness of the metal.