Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2006-04-25
2006-04-25
Kerns, Kevin (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S055100, C164S046000
Reexamination Certificate
active
07032644
ABSTRACT:
An alloy of aluminum, lithium, magnesium, zirconium, and scandium is formed with a rapid solidification process to retain desired metastable phases. A solid freeform fabrication device uses a heat source to melt a feedstock delivered through one or more guide nozzles. The heat source and the nozzles are mounted to a movable platform that positions the heat source and the nozzles in a desired location for each section or layer of the part being formed. The nozzles are located at 90° increments in an array having a selected radius from, and being centered on the heat source. The device forms adjacent, side-by-side layers to form the width of the part, and is used to form adjacent, stacked layers to create the height of the part.
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Bracewell & Giuliani LLP
Kerns Kevin
Lin I.-H.
Lockheed Martin Corporation
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