Coating apparatus – Control means responsive to a randomly occurring sensed... – Responsive to condition of coating material
Patent
1996-02-05
1998-09-15
Griffin, Steven P.
Coating apparatus
Control means responsive to a randomly occurring sensed...
Responsive to condition of coating material
118712, 118697, 118620, 118315, 118323, 347 1, 347 82, 239690, 239695, 156 64, 156356, 264113, 264128, B05C 500, B05C 1100, B05B 500, B32B 3100
Patent
active
058074376
ABSTRACT:
A system for producing three dimensional components by bonding together successive layers of a porous material with droplets of a binder material. A binder printhead has an array of nozzles which controllably supply jets of binder material droplets to the layers of porous material. The printhead is scanned in a raster scan fashion over each layer of porous material along a first scan axis in one direction to provide first fast scanning paths of droplets. The printhead is then moved laterally of such one direction and is then moved along the fast-scan axis in the opposite direction to provide second fast scanning paths of droplets which are interlaced with the first scanning paths. The supply of the droplets to the porous material can be controlled so as to control the overlapping thereof to produce various desired surface and interior characteristics of the components.
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Brancazio David
Bredt James F.
Cima Michael
Curodeau Alain
Fan Tailin
Griffin Steven P.
Massachusetts Institute of Technology
Weissburg Steven J.
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