Method of manufacturing a three-dimensional plastic article
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United States of America Patent
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-
Dec 22, 1992
Grant Date -
N/A
app pub date -
Apr 26, 1991
filing date -
Apr 26, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for producing a three dimensional plastic article having an insert. The three dimensional plastic article (20) is formed by exposing a liquid photopolymer or other material (14) capable of selective solidification or curing to a source of energy (10), preferably a laser beam (30). A portion of the three dimensional plastic article is formed by selectively exposing portions of the surface (12) of the liquid photopolymer to the laser beam. The insert (26) is placed onto the partially formed article (20), and the remainder of the article is formed by selectively exposing additional portions of the surface (16) of the liquid polymer to the laser beam, creating successive layers, whereupon a plurality of the layers form the three dimensional article (20). The insert (26) becomes an integral part of the completed three-dimensional article.
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