Apparatus and method for producing a three-dimensional object an

Details Apparatus and method for producing a three-dimensional object an Apparatus and method for producing a three-dimensional object an

1999-03-17

2000-10-24

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Forming articles by uniting randomly associated particles

118308, 264484, 264497, 425145, 4251744, 4251748E, 427193, B05D 700, B29C 3508, B29C 4102, B29C 6700

Patent

active

061362573

ABSTRACT:
An apparatus is described for producing a three-dimensional object from a powder material which includes powder particles and which is solidifiable by exposure to electromagnetic radiation. The apparatus includes a support having a substantially plane support surface for supporting said object, an applying device for applying a layer of the powder material to the support surface, a radiation device for selectively exposing the powder material to electromagnetic radiation at places corresponding to the object and a discharge electrode for generating an electric field for reducing charge differences on the powder particles.

REFERENCES:
patent: 2197878 (1940-04-01), Robinson
patent: 3660547 (1972-05-01), Ruekberg
patent: 4550680 (1985-11-01), Derendinger
patent: 4863538 (1989-09-01), Deckard

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