Minimum Bend Radius Sheet Metal Metric

Minimum sheet metal flange bend length 3 x sheet thickness bend radius.

Minimum bend radius sheet metal metric.

Thick grade 350 and 400 may have a minimum bend radius of 2 5 times the material thickness when transverse bending while longitudinal bending may require a minimum bend radius that s 3 75 times the material thickness see figure 1. As this happens you gain a small amount of total length in your part. Minimum hole diameter guidelines. Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried.

The internal radius is determined by the tools in conjunction with the material properties. Similarly the harder a piece of metal is the more room. Generally speaking the thicker a piece of sheet metal is the wider the internal bend radius will have to be. The minimum inside bend radius is even larger when bending with the grain.

There are a two major factors that affect how tight you can make the internal radius of a bend in a piece of sheet metal. Table 1 preferred recommended 90 degree bend radii for various sheet metals. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. When designing sheet metal parts and enclosures it is helpful to use these values as the basis for your design.

Minimum sheet metal flange bend length is required to avoid cracks in the bending area. Understanding the bend allowance and consequently the bend deduction of a part is a crucial first step to understanding how sheet metal parts are fabricated. At the minimum draw an internal radius of 0 5 sheet thickness in order to prevent problems with corners. In steel between 0 5 and 0 8 in.

Bend radii minimum bend sizes. The minimum bend radius data shown in these charts is measured to the inside of the bend. The thickness of the metal. It shall be equal to three times of sheet thickness plus bend radius.

When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. 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. The hardness of the metal. Bend radii minimum bend sizes.

Sophia will adjust the radii drawn in order to retain the shape of the final product. Recommended minimum bend radii for steel and aluminum. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. Discover all our calculation tools in the calculators section of the top menu.

Specifing a bend radius from here will help prevent hair line cracks. Bend radii and minimum bends are limited to certain values or ranges which are determined by the equipment and tooling combinations available to the manufacturer.