Method of consolidating a metallic body
AssigneeMetal Alloys, Inc.
InventorFrancis G. Hanejko
Life of this patent
Estimating the term…
Abstract
A method of consolidating a metallic body is disclosed. The method comprises the steps of forming an article of manufacture from powdered metal; sintering the article of manufacture so as to increase the strength thereof; coating the article with a sacrificial layer of ceramic; providing a bed of heated, generally spheroidal ceramic particles; compacting the coated article of manufacture embedded in the heated bed under pressure to thereby consolidate the article into a dense, desired shape; and, removing said sacrificial coating such that the surface of the article remains substantially free of process-related imperfections.
Claims10
A method of consolidating a metallic body comprising the steps of:
- (a) forming an article of manufacture from powdered metal;
- (b) sintering said article of manufacture so as to increase the strength thereof;
- (c) coating said article of manufacture with a sacrificial cermic coating;
- (d) providing a bed of heated, generally spheroidal ceramic particles;
- (e) compacting said coated article of manufacture in said heated bed of generally spheroidal ceramic particles under high pressure to thereby consolidate said coated article of manufacture into a dense, desired shape;
- and
- (f) removing said sacrificial ceramic coating such that the surface of said article of manufacture remains substantially free of process-related inperfections.
A method of consolidating a metallic body comprising the steps of:
- (a) forming an article of manufacture from powdered metal;
- (b) sintering said article of manufacture so as to increase the strength thereof;
- (c) coating said article of manufacture with a sacrificial ceramic coating;
- (d) providing a bed of heated, generally spheroidal ceramic particles which have been coated with a thermally stable, generally non-reactive lubricant;
- (e) heating said coated article of manufacture to a predetermined temperature;
- (f) compacting said coating article of manufacture in said heated bed of generally spheroidal coated ceramic particles under high pressure to thereby consolidate said article of manufacture into a dense, desired shape;
- and
- (g) removing said sacrificial ceramic coating such that the surface of said article of manufacture remains substantially free of process-related inperfections.
Dependencies are inferred from the claim text.