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Bend Force Calculator

Easily calculate bending force for metal sheets, rods, and pipes with our Bend Force Calculator. Accurate, quick, and simple to use.

Common values: V-die (1.33), U-die (0.7-0.8)
Typically 8-10 times material thickness
Material Tensile Strength (MPa) Recommended k Value Recommended Die Width
Mild Steel 400-550 1.33 8 × thickness
Stainless Steel 520-860 1.33 10 × thickness
Aluminum 110-310 1.33 6-8 × thickness
Copper 220-320 1.33 8 × thickness
Brass 330-550 1.33 8 × thickness

A Bend Force Calculator helps you figure out the force needed to bend metal. It’s a handy tool for workers, hobbyists, and anyone handling metal sheets, rods, or pipes. With this calculator, you can avoid mistakes, save materials, and get better results.

Why Do You Need to Calculate Bending Force?

Imagine you're trying to bend a metal rod. If you use too much force, it might crack. Too little force, and it won't bend. Knowing the right force helps you get a clean, accurate bend every time.

How Does the Calculator Work?

Our calculator uses a simple formula to find the bending force:

Formula:

F = (K × T² × L) / D

What Do These Mean?

  • F = Bending Force (kN)
  • K = Constant (usually 1.33 for V-bending)
  • T = Thickness of the material (mm)
  • L = Length of the bend (mm)
  • D = Die opening (mm)

Example Calculation

Let's say you need to bend a steel sheet with these values:

  • Thickness = 5 mm
  • Bend Length = 1000 mm
  • Die Opening = 50 mm

Using the formula:

F = (1.33 × 5² × 1000) / 50

F = (1.33 × 25 × 1000) / 50

F = 665 kN

You'd need 665 kN of force to make the bend.

How to Use the Bend Force Calculator

  1. Type the material thickness (mm).
  2. Enter the bend length (mm).
  3. Add the die opening size (mm).
  4. Click "Calculate" to get the force.

It's quick, easy, and gives you the right result every time.

Things That Affect Bending Force

  • Material Type: Steel needs more force than aluminum.
  • Thickness: Thicker metal needs more force.
  • Bend Length: Longer bends need more power.
  • Die Opening: Wider openings need less force.

Final Thoughts

Using a Bend Force Calculator saves time, reduces errors, and gives you confidence. You don't need to guess or make mistakes. Try it out and see how easy it makes your work!

FAQs

Can I use this for pipes and rods?

Yes! Just make sure you enter the right values.

How much force does it take to bend 1/4 inch steel?

It depends on the length and die opening. Use the calculator to find out.

What if I don't know the die opening?

Check your machine's guide or use a standard value like 8 times the material thickness.