Abrasive airfoil tip

An airfoil (32) comprises a substrate (54), a residual abrasive coating (58) and a supplemental abrasive coating (62). The substrate extends along a tip section (51) of the airfoil, from a leading edge (48) to a trailing edge (50). The residual abrasive coating (58) comprises a two-phase abrasive an...

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Bibliographic Details
Main Authors Gregg, Shawn J, Wrabel, Peter, Draghi, Peter J, MURPHY, Timothy P
Format Patent
LanguageEnglish
French
German
Published 22.01.2020
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Summary:An airfoil (32) comprises a substrate (54), a residual abrasive coating (58) and a supplemental abrasive coating (62). The substrate extends along a tip section (51) of the airfoil, from a leading edge (48) to a trailing edge (50). The residual abrasive coating (58) comprises a two-phase abrasive and metal matrix material bonded to the substrate, on the tip section of the airfoil. The supplemental abrasive coating (62) comprises a two-phase abrasive and metal matrix material bonded to the residual abrasive coating and to the substrate adjacent the residual abrasive coating, on the tip section (51) of the airfoil. The supplemental abrasive coating restores the airfoil to a nominal tip height (57) in the tip section.
Bibliography:Application Number: EP20120169876