Casting shapes

Details Casting shapes Casting shapes

1988-03-24

1989-04-04

Silverman, Stan

Coating processes

Electrical product produced

Welding electrode

427185, 427197, 118429, 118641, 118642, 118643, 118DIG5, B05D 103

Patent

active

048185620

ABSTRACT:
Disclosed is a method of casting a shape. A laser or electron gun is directed at a fusible powder in a fluidized bed. The beam melts the powder and the melted powder fuses and solidifies on a surface to form the shape. Also disclosed is apparatus for casting a shape. The apparatus includes a fluidized bed containing a fluidized powder, a surface within the bed on which the shape is cast, an electron beam or laser directed at the surface, which has an energy sufficient to fuse the powder, means for controlling the level of the powder in the fluidized bed relative to the surface, and means for controlling the horizontal position of the surface relative to the beam.

REFERENCES:
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patent: 4300474 (1981-11-01), Livjey
patent: 4338878 (1982-07-01), Mason et al.
patent: 4460529 (1984-07-01), Schultze et al.
patent: 4474861 (1984-10-01), Ecer
patent: 4525379 (1985-06-01), Hubner et al.
patent: 4532191 (1985-07-01), Humphries et al.
patent: 4555610 (1985-11-01), Polad et al.
patent: 4575330 (1986-03-01), Hull
patent: 4615903 (1986-10-01), Miller
patent: 4644127 (1987-02-01), La Rocca

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