Quality of specimen enhanced by improved canning process. Method developed for canning specimens for hot isostatic pressing. Specimen placed inside refractory-metal ring, then sandwiched between two refractory-metal face sheets. Assembly placed inside die, then positioned in vacuum hot press. Heated to set temperature at prescribed vacuum to burn off all of binder in specimen. Advantages: powder-metallurgy composite totally purged of binder sealed in can in single operation, maintains size, shape, and uniformity of specimen. Weld region does not recrystallize, and little possibility of cracking.
Canning Of Powdered Metal For Hot Isostatic Pressing
NASA Tech Briefs ; 13 , 2
01.02.1989
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Englisch
Mechanisms of hot-isostatic pressing
TIBKAT | 1983
|Hot isostatic pressing of superalloys
Kraftfahrwesen | 1981
|