Living reference work entry
Springback is generally referred to as the change of part shape that occurs upon removal of constraints after forming.
Theory: Mechanics of Springback
Springback can be considered as a dimensional change which happens during unloading, due to the occurrence of primarily elastic recovery of the part. After springback the part reaches an internal equilibrium in the absence of external forces. Residual stresses still exist within the part; however, they are self-balanced. Take a simple bending case in Fig. 1, for example. Under the loaded condition of bending, the top surface is under tension, while the inner surface is under compression (Fig. 2a). During the unloading stage, one can consider...
- Owens HW (2001) Flow lock bead control apparatus and methods for drawing high strength steels. US Patent 6276185 B1Google Scholar
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