Bend Force Calculator, Formula, Bend Force Calculato Calculation

Bend Force Calculator:

Enter the values of material’s specific constant, k, length of the bend, L_(m), tensile strength of the material, St_(N/m2), thickness of the material, t_(m) and die opening, d_(m) to determine the value of bend force, BF_(N).

Bend Force Formula:

The Bend Force Calculator is designed to estimate the force required to bend a sheet of metal to a specific angle, taking into account the material’s properties and the dimensions of the bend.

Bend force, BF_(N) in Newton is equated by dividing the product of  material’s specific constant, k, length of the bend in meters, L_(m) in metres, tensile strength of the material, St_(N/m2) in Newtons per square meter, thickness of the material, t_(m) in metres by die opening, d_(m) in metres.

Bend force, BF_(N) = k * L_(m) * St_(N/m2) * t²_(m) / d_(m)

BF_(N) = bend force in Newton, N.

k = materials specific constant.

L_(m) = length of the bend in metres, m.

St_(N/m2) = tensile strength in Newton per metre squared.

t_(m) = thickness of the material in metre, m.

d_(m) = die opening in metre, m.

Bend Force Calculation:

1. Determining the Force to Bend a Steel Plate

Given: k = 1.33, L_(m) = 1m,  St_(N/m2) = 400*10⁶ N/m²,  t_(m) = 0.005m, d_(m) = 0.05m.

Bend force, BF_(N) = k * L_(m) * St_(N/m2) * t²_(m) / d_(m)

BF_(N) = 1.33 * 1 * 400 * 10⁶ * 0.005² / 0.05

BF_(N) = 26600N.

      2. Bend Force, BF_(N)  = 20000 N,  Material constant, k = 1.5, Bend length, L_(m) =  1m,

       Tensile strength, St_(N/m2)  = 500 ×10⁶ N/m² (500 MPa), Material thickness, t_(m)  =

      0.004m.

 Bend force, BF_(N) = k * L_(m) * St_(N/m2) * t²_(m) / d_(m)

 d_(m) = k * L_(m) * St_(N/m2) * t²_(m) / BF_(N)

d_(m) = 1.5 * 1 * 500 * 10⁶ * 0.004² /  20000N

d_(m) = 12,000/20000

d_(m) = 0.6m.

Calculating Bend Allowance and Setback Example