Bend Radius Sheet Metal Stainless Steel Metric

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Bend radius sheet metal stainless steel metric. 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 material thickness will be measured in decimal form not by the gauge number. A general guideline the minimum metal bend radius is approximately equal to the material thickness. If you re bending 0 020 thick material use a 0 020 radius.

For most applications with stainless steel or aluminum you can get away with a zero radius bend on anything under 0 050 thick. Category thickness minimum bend bend radius. Therefore the bend deduction equals the difference between the mold line lengths and the total flat length. 22 gauge 0 030 0 76 mm 0 5 12 7mm.

Aluminum where necessary 5052 h32 may be bent to 1t and 6061 t6 to 1 1 2t. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. Minimum bend includes minimum closeness of cutout to bend radius cold rolled steel 14 gauge 0 075 1 91mm. It just won t really be at maximum strength.

Recommended minimum bend radii for steel and aluminum. The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched. The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal.

Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. You will need to know your material thickness mt the bend angle b the inside radius ir and the k factor k. This page also includes a link to a on line sheet metal bend allowance calculator. Sheet metal calculator bend allowance equations and calculator.

Most sheet metal materials will conform to the calculations. The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel. The minimum bend radius data shown in these charts is measured to the inside of the bend. Aluminum 5052 or 3003.

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. Table 1 preferred recommended 90 degree bend radii for various sheet metals.