Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-04-10
2007-04-10
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S055100
Reexamination Certificate
active
11002726
ABSTRACT:
Preferred embodiments of the present invention include methods that allow for casting alloys, and preferentially casting wrought alloys to circumvent problems such as, for example, hot tearing. Preferred embodiments of the present invention provide for alloys having predominantly spherical primary α-aluminum grains in their microstructure (i.e., substantially free of dendrites) formed by mixing two liquids of differing compositions that are held at predetermined temperatures, such that when mixed they produce a predetermined alloy composition at a predetermined temperature that is inclined to solidify with a predominantly spherical grain structure that minimizes the alloy's tendency towards hot tearing.
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Apelian Diran
Makhlouf Makhlouf M.
Saha Deepak
Shankar Sumanth
Lin Kuang Y.
Wilmer Cutler Pickering Hale and Dorr LLP
Worcester Polytechnic Institute
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