Force required to bend sheet metal with a bending brake

In summary, the force required to bend a piece of .032" thick AL 3' long sheet metal to 110° using a hand bending brake with a .04" edge and a .045" bend radius is approximately 6.912in^3. This can be calculated using online calculators for force to bend sheet metal.
  • #1
HCaduser
3
0
I want to know the force required to bend a piece of sheet metal in a hand bending brake. The sheet metal is clamped down and then bent upwards to a desired angle. The action is performed in the video below . Let's say I wanted to bend a piece of .032" thick AL 3' long to 110° (given the brake was able to make this degree of bend). How much force would be required to make this bend using this bending method?

 
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  • #2
"How much force?" Depends on the actual bend radius, how sharp an "edge" you have on the break.
 
  • #3
"Edge" is a radius of .04" And the bend radius is .045".
 
  • #4
What's the volume of metal in the bend that is being permanently deformed?
 
  • #5
.11in^3
 
Last edited:
  • #6
HCaduser said:
.032" thick AL 3' long
times
HCaduser said:
bend radius is .045".
times 2pi/4
HCaduser said:
6.912in^3
Don't think so.
 

What is a bending brake?

A bending brake is a tool used to bend and shape sheet metal. It consists of a flat surface with a clamping bar and a hinged bending leaf that can be adjusted to different angles for precise bending.

How much force is required to bend sheet metal with a bending brake?

The amount of force required to bend sheet metal with a bending brake depends on several factors such as the thickness and type of metal, the angle of the bend, and the length of the metal being bent. Generally, a bending brake can exert up to 20 tons of force, but this can vary depending on the specific model and capabilities of the brake.

Can any type of sheet metal be bent with a bending brake?

Yes, most types of sheet metal can be bent with a bending brake, including aluminum, steel, and copper. However, the thickness and hardness of the metal may affect the amount of force required and the precision of the bend.

How do I determine the correct angle for bending sheet metal with a bending brake?

The correct angle for bending sheet metal with a bending brake can be determined by using a protractor or angle finder. You can also use a test piece of metal to make a trial bend and adjust the angle until you achieve the desired result.

Are there any safety precautions I should take when using a bending brake?

Yes, it is important to wear appropriate personal protective equipment, such as gloves and eye protection, when using a bending brake. Always follow the manufacturer's instructions and make sure the metal is securely clamped in place before bending. Never place your hands or fingers near the bending leaf while it is in motion.

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