Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se
Patent
1996-06-28
1998-10-20
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
264221, 264317, 264401, 264621, C04B 3328
Patent
active
058242503
ABSTRACT:
A ceramic component is manufactured rapidly using a mold made directly from a solid freeform manufacturing process. Solid freeform fabrication, or rapid prototyping, procedures are used to generate molds of materials that are soluble or otherwise fugitive. A gel casting suspension containing ceramic and emulsifying agents is poured into the cavity of the mold and caused to set. The mold is then removed by dissolution or heat treatment, leaving intact the gelcast part. Conventional procedures are then utilized to densify the gelcast component to the required final component. Time consuming and expensive machine tooling procedures are virtually eliminated. Ceramic components are generated rapidly in a cost effective manner.
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patent: 4575330 (1986-03-01), Hull
patent: 4665492 (1987-05-01), Masters
patent: 5134569 (1992-07-01), Masters
patent: 5277241 (1994-01-01), Schneider
patent: 5298204 (1994-03-01), O'Connor
patent: 5439622 (1995-08-01), Pennisi
patent: 5546313 (1996-08-01), Masters
Agarwala Mukesh
Danforth Stephen C.
Jamalabad Vikram R.
Pollinger John P.
Whalen Philip J.
Allied-Signal Inc.
Derrington James
Rafter John R.
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