Coextruded products of aluminum foam and skin material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 26, 2004
Grant Date -
Feb 13, 2003
app pub date -
Aug 6, 2002
filing date -
Aug 7, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of operating a twin wheel conform metal extrusion device or a cladding extrusion device for producing a composite of an extruded metal shell bonded to a metal foam core. A metal feedstock is extruded through an extrusion die defining a cavity housing a hollow extrusion mandrel to produce a metal shell. Liquid foam of a second metal is simultaneously delivered through the hollow mandrel bore such that the foam exiting the axial bore is metallurgically bonded to the metal extruded through the cavity.
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