Solid freeform fabrication system and method

Details Solid freeform fabrication system and method Solid freeform fabrication system and method

2006-07-11

2006-07-11

Tran, Len (Department: 1725)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S271000

Reexamination Certificate

active

07073561

ABSTRACT:
A system and method of solid freeform work piece fabrication through layered deposition of feedstock material on a mold structure. An energy beam and feedstock are fed to a feed point adjacent to a mold structure, thereby forming a molten puddle. The feed point is moved relative to the mold structure, thereby advancing the molten puddle of presently fed feedstock and rapidly solidifying previously fed feedstock. The feed point is sequentially advanced within a predetermined geometric volume containing at least a portion of the mold structure, thereby sequentially fusing the feedstock, by action of the advancing molten puddle, into a near net shape work piece built-up upon the mold structure.

REFERENCES:
patent: 5169579 (1992-12-01), Marcus et al.
patent: 5306447 (1994-04-01), Marcus et al.
patent: 5960853 (1999-10-01), Sterett et al.
patent: 6405095 (2002-06-01), Jang et al.
patent: 2004/0188053 (2004-09-01), Brice

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