METHOD OF LONG PARTS SIZES STABILIZATION Russian patent published in 2017 - IPC B24B39/04 B23P25/00 

FIELD: technological processes.

SUBSTANCE: invention relates to long parts straightening by elastoplastic bending. Performing part preliminary elastic deformation. Performing part straightening with simultaneous surface plastic deformation by working tool, moving along part generatrix rotating around its central axis and providing effect on part surface from two opposite sides with equal forces. At that, forces are applied at distance: , where σ_t is part material yield point, MPa, W is part moment of resistance, mm³, P is working tool to part pressing force, N.

EFFECT: result is elimination of residual stresses in part and provision of part surface layer hardening.

1 cl, 1 dwg, 1 ex