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.
Minimum bend radius stainless steel sheet.
If the product contains one or more sharp bends use the dimensions from the sharp tables for all bends in.
These dimensions are all in relation to a 90 angle.
Material bend radii and minimum bend size charts please note.
The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.
The minimum inside bend radius is even larger when bending with the grain.
Maximum sheet thickness for all other steel is 6 mm.
Maximum sheet thickness for aluminum and stainless steel is 6 mm.
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.
Maximum dimensions are 2980 x 1200 mm.
It is possible to choose other bends if you require but additional lead time and tooling charges may apply.
Aluminum 5052 or 3003.
A general guideline the minimum metal bend radius is approximately equal to the material thickness.
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.
Discover all our calculation tools in the calculators section of the top menu.
Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend.
Getting the actual minimum bend radius for your sheet metal typically requires more detailed knowledge of the alloy being shaped which comes with training and education in metal forming techniques as well as a familiarity with the material s used for a custom sheet metal form.
The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels.
Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer.
The tables below show bend radii and minimum bend sizes for materials and tooling combinations stocked by protocase.
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 minimum bend radius data shown in these charts is measured to the inside of the bend.
The following tables showing the minimum bend radius allowable in air bending process for aluminum and steel or stainless steel.
The gauge inside radius die opening and minimum flange length are all interconnected through different equations and relationships the air bend force.
The bend radius you select may not be available if the geometry of the part will not allow us to bend with the specific tooling required to achieve that radius.
