Minimum Bend Radius Mild Steel Sheet

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.

Minimum bend radius mild steel sheet.

If the material is 0 5 in. The tool can calculate the required bending force for bending aluminum stainless steel mild steel and weldox or strenx high strength steels. 4 0 5 2. So in this case the minimum inside bend radius is 2 times the material thickness.

Finding the true minimum bend radius for steel or aluminum plate requires a little research. The minimum inside bend radius is even larger when bending with the grain. Being able to read a bend force chart is crucial for any brake press operator and sheet metal engineer. The bend radii listed are standard minimum if manufacturing for aircraft and aerospace applications.

The required die width is 12 mm and tonnage per meter is 22. Divide 50 by the material s tensile reduction percentage as specified by your supplier. It is most economical to use a single bend radius throughout the design but if necessary you can utilize multiple radii. Use this document to choose values that are both manufacturable and meet your needs.

Note that this is just a rule of thumb. Now multiply that answer by the plate thickness. In steel between 0 5 and 0 8 in. Bend radii minimum bend sizes.

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. Bend radii minimum bend sizes. Steve benson the president of asma llc shares a handy rule of thumb for determining the minimum bend radius for steel forms. This value will vary by grade.

Bend radii and minimum bends are limited to certain values or ranges which are determined by the equipment and tooling combinations available to the manufacturer. Discover all our calculation tools in the calculators section of the top menu. In steel between 0 5 and 0 8 in. Let s say i have a 2 mm thick sheet and i want to bend it.

Determining the minimum internal radius for a bend in sheet metal. I can now see that the minimum flange length is 8 5 mm for such a bend so i have to keep it in mind when designing. The lowest common bench capacity is around 100 tonnes. When designing sheet metal parts and enclosures it is helpful to use these values as the basis for your design.

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. Again the minimum inside bend radius is even larger when bending with the grain. 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. The minimum bend radius data shown in these charts is measured to the inside of the bend.