Bend Radius Sheet Metal Stainless Steel Metric

The bend allowance formula takes into account the geometries of bending and the properties of your metal to determine the bend allowance.

Bend radius sheet metal stainless steel metric. 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 minimum bend radius data shown in these charts is measured to the inside of the bend. A general guideline the minimum metal bend radius is approximately equal to the material thickness. The bend deduction sometimes called the bend compensation describes how much the outside of the sheet has been stretched.

For most applications with stainless steel or aluminum you can get away with a zero radius bend on anything under 0 050 thick. Sheet metal calculator bend allowance equations and calculator. The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel. Aluminum 5052 or 3003.

The following illustration shows the equation calculation for determining the bend allowance when forming sheet metal. This page also includes a link to a on line sheet metal bend allowance calculator. It just won t really be at maximum strength. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.

Table 1 preferred recommended 90 degree bend radii for various sheet metals. Discover all our calculation tools in the calculators section of the top menu. The bend allowance added to the flange lengths is equal to the total flat length of the part. Category thickness minimum bend bend radius.

The material thickness will be measured in decimal form not by the gauge number. If you re bending 0 020 thick material use a 0 020 radius. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications. 22 gauge 0 030 0 76 mm 0 5 12 7mm.

Most sheet metal materials will conform to the calculations. Minimum bend includes minimum closeness of cutout to bend radius cold rolled steel 14 gauge 0 075 1 91mm. Therefore the bend deduction equals the difference between the mold line lengths and the total flat length. 22 gauge 0 030 0 76 mm.

Sheet metal bend radii if these guidelines are not followed more research and or some form of analysis may be requried. 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.