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AssigneeAlotech Ltd. LLC
InventorsJohn R. Grassi, John Campbell, J. Fred Major
Estimating the term…
A shaped metal casting made in an aggregate mold comprises fine solidification microstructure that is finer than the solidification microstructure of an analogous metal casting made from conventional molding processes. The solidification microstructure may be up to five times finer than the solidification microstructure of a conventionally prepared casting. In preferred embodiments, as a result of directional solidification, the fine solidification microstructure is substantially continuous from a distal end of the casting to a proximal end of the casting, and exhibits greatly enhanced soundness. Because of the control of the uniformity of freezing of the casting, its properties are substantially uniform.
A shaped metal casting formed in a mold comprising an aggregate by an ablation casting process, the casting comprising a fine solidification microstructure that is finer than the microstructure of a casting having a similar metal of a similar weight or section thickness that is produced by a conventional aggregate molded casting process, wherein the fine microstructure comprises one or more of grains, dendrites, eutectic phases or combinations thereof, wherein the fine solidification microstructure is about five times finer than the microstructure of a casting of a similar metal that is produced by a conventional aggregate casting process.
A metal casting formed in a mold comprising an aggregate via a rapid cooling process and exhibiting a cast microstructure, the microstructure comprising:
A metal casting formed in a mold comprising an aggregate via a rapid cooling process and exhibiting a cast microstructure, the microstructure comprising:
Dependencies are inferred from the claim text.