Solid freeform fabrication using power deposition
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United States of America Patent
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May 23, 2000
Grant Date -
N/A
app pub date -
Dec 11, 1998
filing date -
Dec 12, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solid freeform fabrication process and apparatus for producing three dimensional parts using layer-by-layer deposition of support powder and part compositional powder, where the deposition is accomplished using electro-photographic powder deposition technology to create a three-dimensional green part. Each successive loose powder layer is deposited directly onto the previously deposited powder layer, which has been compacted or fused to its underlying layer. After all powder layers have been deposited the green part is further processed such that the part compositional powder is fused to create a high-density part while the support powder is easily removed.
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