Casting core and method for testing a hollow metal article
AssigneeUnited Technologies Corporation
InventorsLea Kennard Castle, Mario P. Bochiechio, Shiela R. Woodard, James Tilsley Auxier
Life of this patent
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Abstract
A hollow metal article can be fabricated by casting a molten metal alloy around a core, solidifying the molten metal alloy to form a metal article, and chemically removing the core from the metal article to form a hollow cavity in the metal article. The core includes a ceramic core body and an x-ray radiopaque coating 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 remains in the hollow metal article.
Claims20
A method for testing a hollow metal article, the method comprising:
- submitting a hollow metal article to x-ray imaging, wherein the hollow metal article was fabricated by casting a molten metal alloy around a core that had a ceramic core body and an x-ray radiopaque coating disposed on the ceramic core body, the core having been chemically removed;
- and
- determining based upon the x-ray imaging whether any of the x-ray radiopaque coating of the core remains in the hollow metal article.
A method for testing a hollow metal article, the method comprising:
- casting a molten metal alloy around a core and solidifying the molten metal alloy to form a metal article, wherein the core includes a ceramic core body and an x-ray radiopaque coating disposed on the ceramic core body;
- chemically removing the core from the metal article to form a hollow cavity in the metal article;
- and
- after chemically removing the core, submitting the 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 remains in the hollow cavity.
A casting core comprising:
- a ceramic core body configured for forming a cavity in a metal article;
- and
- an x-ray radiopaque coating disposed on the ceramic core body.
Dependencies are inferred from the claim text.