Minimum Bend Radius Sheet Metal Aluminum Metric

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

Minimum bend radius sheet metal aluminum metric.

Radii for various thicknesses expressed in terms of thickness t. It requires an inside bend radius of at least 6x the material thickness. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. 5052 h32 aluminum bends in about the same way as mild steel.

Discover all our calculation tools in the calculators section of the top menu. 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. We go beyond the general rules of sheet metal bending as our customers want tight bend radii for sheet metal parts. 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.

When the sheet metal is put through the process of bending the metal around the bend is deformed and stretched. For example 6061 t6 aluminum is very difficult to bend. Use this document to choose values that are both manufacturable and meet your needs. Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t.

Minimum hole diameter guidelines. It shall be equal to three times of sheet thickness plus bend radius. As this happens you gain a small amount of total length in your part. This tool allows you to determine tonnage internal radius v die opening and minimum flange you just have to insert the characteristics of the sheet metal to be bent.

The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. In steel between 0 5 and 0 8 in. 3003 h14 is extremely ductile. It is possible to choose other bends if you require but additional lead time and tooling charges may apply.

The minimum inside bend radius is even larger when bending with the grain. Table 1 preferred recommended 90 degree bend radii for various sheet metals. Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. Recommended minimum bend radii for steel and aluminum.

Aluminum minimum bend radii for 90 degree cold forming of sheet and plate. 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. Bend radii minimum bend sizes. Per the aluminum association inc.

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.