Lightweight part, as well as process and device for its...

Metal founding – Process – Shaping liquid metal against a forming surface

Reexamination Certificate

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Details

C164S112000, C164S137000, C164S332000

Reexamination Certificate

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07134477

ABSTRACT:
Process of making a lightweight part comprising an inner core including a metal foam, a dense core surface layer that is metallically joined to the inner core, and an outer wall comprising an essentially pore-free cast metal layer that is at least one of positively engaged with the dense core surface layer and surrounding the inner core and metallically joined to the dense core surface layer and surrounding the inner core, wherein the process includes creating a core part by forming the dense core surface layer, forming the inner core of a metal foam, and metallically joining together the inner core and the dense core surface layer and creating a finished part by positioning the core part in a casting mold, feeding a melt material into the casting mold, and allowing the melt material to solidify so as to form the outer wall. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

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