METHOD OF RESTORING ONE-PIECE BLADED DISK AND TEST PIECE (VERSIONS) Russian patent published in 2010 - IPC F01D5/34 B23K26/34 

FIELD: engines and pumps.

SUBSTANCE: proposed method of restoring bladed disk with at least one damaged zone comprises preparing said zone, building up metal on appropriate machine tool and finishing restored zone. In preparing, damaged zone is subjected to machining to produce preset profile restored zone. Then meat is built up on test piece, called initial test piece, with said preset profile using laser built-up tool with preset operating parametres. After build-up, test piece quality is checked and, if it complies with acceptance criterion, metal build-up is performed in zone to be restored using the same laser tool without changing its operating parametres. Other inventions of the set relate to test pieces intended for above described method and made from titanium alloy. In compliance with one version, shape of said test pieces imitates the tip of aerodynamic profile, while, in compliance with another version, it imitates the angle of front or rear edge of aerodynamic profile tip subjected to machining to preset model.

EFFECT: longer life and higher reliability of turbo machine restored disk.

17 cl, 9 dwg