Method of producing high-temperature parts by way of low-tempera

Details Method of producing high-temperature parts by way of low-tempera Method of producing high-temperature parts by way of low-tempera

1992-03-20

1994-02-08

Powell, William A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156 622, 1562728, 21912185, 264125, 428325, 428357, B32B 3100, B27N 300, B23K 900, B29C 6700

Patent

active

052846954

ABSTRACT:
A method of producing high temperature parts by way of relatively low temperature sintering is disclosed. A powder is produced, for example by spray drying a slurry, in which particles of a high temperature material such as a ceramic are partially coated with a low temperature material such as a polymer. The powder is subjected to selective laser sintering, or another heat-based layerwise additive process, to form a green part where the ceramic particles are bound by the polymer. The green part is permeated with a cementing agent having high temperature properties when cured; the cementing agent binds the exposed ceramic surfaces in the green part. The polymer is then removed, leaving the high temperature part. Additional cementing agent, or another high temperature material, may then be added to the part after removal of the polymer.

REFERENCES:
patent: 3899554 (1975-08-01), Kaiser et al.
patent: 4575330 (1986-03-01), Hull
patent: 4665492 (1987-05-01), Masters
patent: 4818454 (1989-04-01), Urquhart et al.
patent: 4818562 (1989-04-01), Arcella et al.
patent: 4828008 (1989-05-01), White et al.
patent: 4863538 (1989-09-01), Deckard
patent: 4889670 (1989-12-01), Gurak et al.
patent: 4929402 (1990-05-01), Hull
patent: 4938816 (1990-07-01), Beaman et al.
patent: 4944817 (1990-07-01), Bourell et al.
patent: 4961154 (1990-10-01), Pomerantz et al.
patent: 5001088 (1991-04-01), Hauptmann et al.
patent: 5017317 (1991-05-01), Marcus
patent: 5017753 (1991-05-01), Deckard
patent: 5031120 (1991-07-01), Pomerantz et al.
patent: 5059266 (1991-10-01), Yamane et al.
patent: 5076869 (1991-12-01), Bourell et al.
Chemical Abstracts, vol. 115, No. 4, Jul. 29, 1991, Columbus, Ohio, US; abstract No. 34265y.
Leont'ev, "Lazernaja Poverhnostja Obrabotka Metallor 1 Splavor," (1986), pp. 120-123, (partial translation included).
Takei, et al., "Rhenum Films Preparation by Laser Melting," J. App. Phys. 51 (5) (May 1980), pp. 2903-2908.
Deckard, et al., "Solid Freedom Fabrication and Selective Powder Sintering", Presented at NAMRACIS (1987) pp. 636-640.
Weiss, et al., "A Framework for Thermal Spray Shape Deposition: The MD* System," presented at the Solid Freeform Fabrication Symposium, Aug. 1991.
Sachs, et al., "Three dimensional printing of Ceramic Shells and Cores for Metal, Casting," 39th Annual Technical Meeting: Investment Casting Institute 1991, pp. 12:1-12:13.

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