CASTING CORE AND METHOD FOR TESTING A HOLLOW METAL ARTICLE

A hollow metal article can be fabricated by casting a molten metal alloy around a core (30), solidifying the molten metal alloy to form a metal article, and chemically removing the core (30) from the metal article to form a hollow cavity in the metal article. The core (30) includes a ceramic core bo...

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Bibliographische Detailangaben
Hauptverfasser:	AUXIER, James Tilsley, CASTLE, Lea Kennard, WOODARD, Shiela R, BOCHIECHIO, Mario P
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES FOUNDRY MOULDING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICS POWDER METALLURGY TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A hollow metal article can be fabricated by casting a molten metal alloy around a core (30), solidifying the molten metal alloy to form a metal article, and chemically removing the core (30) from the metal article to form a hollow cavity in the metal article. The core (30) includes a ceramic core body (38) and an x-ray radiopaque coating (40) disposed on the ceramic core body. A method for testing the hollow metal article includes submitting the hollow metal article to x-ray imaging and determining based upon the x-ray imaging whether any of the x-ray radiopaque coating of the core (30) remains in the hollow metal article.