Stainless Steel Sheet Metal Bend Radius Chart

22 gauge 0 030 0 76 mm 0 5 12 7mm.

Stainless steel sheet metal bend radius chart.

Aluminum 5052 or 3003. Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. An air bend force chart or force chart breaks down a number of key components of sheet metal bending in an easy to reference format. You described a rough rule to find a steel s minimum bend radius.

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 tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase. Bottoming as the name bottom pressing suggests the punch presses the metal sheet onto the surface of the die so the die s angle determines the final angle of the workpiece. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.

The opposite happens with stainless steel the required force is 1 7x higher than the ones displayed in this table. The material thickness will be measured in decimal form not by the gauge number. The minimum bend radius data shown in these charts is measured to the inside of the bend. 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.

It is possible to choose other bends if you require but additional lead time and tooling charges may apply. The gauge inside radius die opening and minimum flange length are all interconnected through different equations and relationships the air bend force. 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.

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 following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel. 22 gauge 0 030 0 76 mm. Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer.

You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. A general guideline the minimum metal bend radius is approximately equal to the material thickness.