springback, elastic springback
metalli plastse vormimisega kaasnev, elastsusest tingitud tooriku vormi (enamasti painderaadiuse ja -nurga) muutus peale välisjõudude eemaldamist; võetakse arvesse tehnoloogilise protsessi projekteerimisel (vt elastsus), the extent to which metal tends to return to its original shape or contour after undergoing a forming operation; this is compensated for by overbending or by secondary operation of restriking (see: elasticity)