Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1996-09-20
1999-04-13
Lin, Kuang Y.
Metal founding
Process
Shaping liquid metal against a forming surface
164900, 228257, B22D 100, B22D 1904, B23K 3102
Patent
active
058934049
ABSTRACT:
Disclosed is a method and apparatus for rapidly producing a metal component from partially solidified metal slurry. A source of metal alloy slurry is provided and maintained under conditions to maintain the slurry state, for example by shearing at a temperature between a liquidus and solidus thereof. The slurry is dispensed through a source nozzle and deposited upon a substrate or upon previously dispensed slurry in a predetermined, controlled manner to produce a component of desired geometry. The substrate may be planar or contoured and may comprise an element of the component being produced. A temperature, pressure or chemical composition controlled deposition environment may be provided to facilitate producing a component having desired characteristics.
REFERENCES:
patent: 3222776 (1965-12-01), Kawecki
patent: 3902544 (1975-09-01), Flemings et al.
patent: 3907192 (1975-09-01), Grietens
patent: 4926924 (1990-05-01), Brooks et al.
patent: 5121329 (1992-06-01), Crump
patent: 5257657 (1993-11-01), Gore
"Thixocasting of Steel" by Prof. M. C. Flemings and K. P. Young, Massachusetts Institute of Technology, Cambridge, Massachusetts, Paper No. G-T77-092 (1977).
Brown Stuart B.
Mendez Patricio F.
Lin Kuang Y.
Semi Solid Technologies Inc.
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