Springback in Bending Calculator

Initial bend radius (R_i):

Final bend radius (R_f):

Young's modulus (E):

Material thickness (T):

How This Is Calculated

$$ \frac{R_i}{R_f} = 4 \cdot \left(\frac{R_i}{E \cdot T}\right) - 3 \cdot \left(\frac{R_i}{E \cdot T}\right) + 1 $$ where:

R_i = Initial bend radius (m)

R_f = Final bend radius (m)

E = Young's modulus (Pa)

T = Material thickness (m)

Assumptions

The material properties are unifrom.
The neutral axis location remains constant.
Bening is planar.
Thermal and strain rate effects are not considered.

Related Calculators

Spindle Power

Bend Allowance

Bend Deduction

Minimum Bend Radius

K-Factor