Press Brake & Bending
Bending Force Calculator
Calculate required tonnage for press brake air bending operations. Essential for selecting the right press brake capacity and preventing machine overload.
- Bend Length: The length of the bend line.
- Material Thickness: Sheet metal thickness.
- V-Die Opening: Width of the V-die opening.
- Tensile Strength: Material tensile strength.
Bending Force Calculator
Units:
mm
mm
mm
MPa
Theory & Formulas
Bending Force Formula (Air Bending):
P = (1.42 × L × T² × σ) / V
Where:
- P = Force (kg)
- L = Bend length (mm)
- T = Thickness (mm)
- σ = Tensile strength (MPa)
- V = V-die opening (mm)
Typical Tensile Strengths:
- Mild Steel: 400 MPa (58,000 PSI)
- Stainless Steel: 600 MPa (87,000 PSI)
- Aluminum: 200 MPa (29,000 PSI)
P = (1.42 × L × T² × σ) / V
Where:
- P = Force (kg)
- L = Bend length (mm)
- T = Thickness (mm)
- σ = Tensile strength (MPa)
- V = V-die opening (mm)
Typical Tensile Strengths:
- Mild Steel: 400 MPa (58,000 PSI)
- Stainless Steel: 600 MPa (87,000 PSI)
- Aluminum: 200 MPa (29,000 PSI)