Rapid prototype three dimensional stereolithography
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United States of America Patent
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Aug 13, 1996
Issued Date -
N/A
app pub date -
May 27, 1993
filing date -
Apr 15, 1992
priority date (Note) -
Expired
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Abstract
Methods and apparatus are disclosed for the production of high precision large scale, micro and mini structures using three dimensional stereolithography. The objects formed using these methods have minimal stress between layers and low curl distortion. The objects also have low warpage because no post-cure treatment is necessary. The methods include the use of elevated pressure, elevated temperature, or sequential polymerization of polymer precursor fluid, or a combination of these, in the three dimensional stereolithographic process.
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