Pressure casting using a supported shell mold

Details Pressure casting using a supported shell mold Pressure casting using a supported shell mold

2006-04-25

2006-04-25

Tran, Len (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S361000

Reexamination Certificate

active

07032647

ABSTRACT:
A method of casting including forming a shell mold around a pattern fabricated from an expendable material and then removing the expendable material from the shell mold. The shell mold is located within a housing such that an inlet port of the shell mold communicates with an opening in the housing. A supporting material is provided and substantially fills an open volume between an external surface of the shell mold and an interior surface of the housing. A molten material is then pressure cast through the inlet port and into the shell mold. The invention includes a mold assembly and a casting system useful in practicing the disclosed method.

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