TECHNIQUES FOR DEPOWDERING ADDITIVELY FABRICATED PARTS THROUGH FLUID IMMERSION AND RELATED SYSTEMS AND METHODS
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United States of America Patent
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Issued Date -
May 2, 2024
app pub date -
Aug 1, 2023
filing date -
Aug 23, 2019
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Abstract
Techniques for depowdering in additive fabrication are provided. According to some aspects, techniques are provided that separate powder from additively fabricated parts through liquid immersion of the parts. Motion of the liquid, such as liquid currents, may dislodge or otherwise move powder away from additively fabricated parts to which it is adhered or otherwise proximate to. The liquid may also provide a vehicle to carry away powder from the additively fabricated parts. Removed powder may be filtered or otherwise separated from the liquid to allow recirculation of the liquid to the parts and/or to enable re-use of the powder in subsequent additive fabrication processes. Techniques for depowdering through liquid immersion may be automated, thereby mitigating challenges associated with manual depowdering operations.
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