METHOD OF PRODUCING RIB ON VANE FREE END, VANE PRODUCED BY SAID METHOD AND GAS TURBINE ENGINE EQUIPPED WITH SAID VANE Russian patent published in 2011 - IPC B23P15/00 B24C1/10 

FIELD: process engineering.

SUBSTANCE: invention aims at fabricating gas turbine engine vanes with, at least, one rib on free end by consecutive application of metal layers on vane foot to form extending part of rib 2282. For this, laser source is activated connected with optical head 34 and focused to the point of rib foot top surface, as well as source 34, 35 of first and second powder materials connected with spraying nozzle 38. Powder is fed into melt bath to produce localised bulge. Thereafter, optical head 34 and nozzle 38 are displaced to another point adjoining said bulge to repeat said jobs to complete layer formation on foot 82. Note here that head 32 is displaced longitudinally between edges 120, 220 and 122, 222 relative to produced bulge to form two annular seams 83a on rib foot surface. Gap between annular seams 83a are filled with first powder material.

EFFECT: simplified process, higher quality of product.

18 cl, 13 dwg