Springback Factor Calculator

Final radius of curvature after springback (R_f):

Initial radius of curvature during loading (R):

How This Is Calculated

k_{s} = \frac{R_{f}}{R}

where:

k_s = Springback factor (dimensionless)

R_f = Final radius of curvature after springback (mm)

R = Initial radius of curvature during loading (mm)

Assumptions

The material properties are unifrom.
Residual stresses are negligible.
Bending radius remains constant.
Friction effects are not considered.

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Mold Constant

Shrinkage Allowance

Solidification Time

Flow Stress