Springback
The elastic recovery of metal after a bending force is removed, opening the bend slightly.
What it means on the floor
No bend holds exactly the angle it was formed to. When the punch retracts, the elastically stored energy in the material relaxes and the part "springs back" to a slightly more open angle and larger radius.
Springback grows with higher material strength, larger bend radii, and thinner stock. Shops compensate by overbending (forming past the target angle), bottoming, or coining so the finished part lands on the nominal angle.
Category: Forming
Applying the term
Interpret Springback in the context of the drawing, governing standard, and customer requirement in front of you — the same word can carry different limits in design, quality, and production documents. Check whether a stated value is nominal, minimum, maximum, or reference-only, and whether it applies before forming, after forming, or after heat treatment.