Abrading – Abrading process – Utilizing fluent abradant
Patent
1995-08-30
1997-12-30
Smith, James G.
Abrading
Abrading process
Utilizing fluent abradant
451 61, 451113, B24B 100
Patent
active
057022887
ABSTRACT:
A method of removing excess MCrAlY overlay coating from within a cooling hole of an aluminide coated gas turbine engine component is disclosed. The method includes providing a gas turbine engine component having an internal surface (4), an outer surface (6) and a root end (8). The component also includes at least one cooling hole (10) extending from the internal surface (4) to the outer surface (6), wherein the internal surface(4) of the component is coated with a corrosion resistant aluminide coating. An MCrAlY overlay coating (12) is also located on the outer surface (6) and inside a portion of the cooling hole (10). An abrasive slurry is forced into the gas turbine engine component from the outside of the component to the inside of the component, through the cooling hole (10), such that the slurry flows through the internal surface (4) of the component and removes at least a portion of the overlay coating (12) located inside the cooling hole (10) without adversely affecting the internal surface (4) of the component. The abrasive slurry subsequently exits the component through the root end (8).
REFERENCES:
patent: 3634973 (1972-01-01), McCarty
patent: 3699725 (1972-10-01), Feldcamp
patent: 3802128 (1974-04-01), Minear, Jr. et al.
patent: 3819343 (1974-06-01), Rhodes
patent: 4005989 (1977-02-01), Preston
patent: 4317685 (1982-03-01), Ahuja et al.
patent: 4449023 (1984-05-01), Hilhorst et al.
patent: 4677035 (1987-06-01), Fiedler et al.
patent: 4897315 (1990-01-01), Gupta
patent: 4933815 (1990-06-01), Parthasarathy
patent: 4936057 (1990-06-01), Rhodes
patent: 4995949 (1991-02-01), Rhodes
patent: 4996796 (1991-03-01), Rhodes
patent: 5050119 (1991-09-01), Parthasarathy
patent: 5054247 (1991-10-01), Rhodes et al.
patent: 5057196 (1991-10-01), Creech et al.
patent: 5070652 (1991-12-01), Rhodes et al.
patent: 5076027 (1991-12-01), Rhodes
patent: 5088047 (1992-02-01), Bynum
patent: 5090870 (1992-02-01), Gilliam
patent: 5125191 (1992-06-01), Rhodes
patent: 5235959 (1993-08-01), Frank et al.
patent: 5341602 (1994-08-01), Foley
patent: 5367833 (1994-11-01), Rhodes et al.
patent: 5437724 (1995-08-01), Dansereau et al.
patent: 5486281 (1996-01-01), Gruver et al.
L. J. Rhodes, "Abrasive Flow Machining", Manufacturing Engineering, Nov. 1988, pp. 75-78.
L. Rhodes, "Abrasive Flow Machining With Not-So-Silly Putty", Metal Finishing, Jul. 1987, pp. 27-29.
L. Rhodes, "Abrasive Flow Machining: A Case Study", Journal of Materials Processing Technology, 28 (1991) 107-116.
Dawson David R.
Fredette Mark A.
Goodstein Mark B.
Liebke William R.
Edwards Dona C.
Smith James G.
United Technologies Corporation
LandOfFree
Method of removing excess overlay coating from within cooling ho does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of removing excess overlay coating from within cooling ho, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of removing excess overlay coating from within cooling ho will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-197039