Method for fabricating three-dimensional printed composites
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United States of America Patent
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Aug 13, 2019
Grant Date -
Feb 22, 2018
app pub date -
Nov 3, 2017
filing date -
Aug 29, 2011
priority date (Note) -
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Abstract
A 3D object according to the invention comprises substrate layers infiltrated by a hardened material. The 3D object is fabricated by a method comprising the following steps: Position powder on all or part of a substrate layer. Repeat this step for the remaining substrate layers. Stack the substrate layers. Transform the powder into a substance that flows and subsequently hardens into the hardened material. The hardened material solidifies in a spatial pattern that infiltrates positive regions in the substrate layers and does not infiltrate negative regions in the substrate layers. In a preferred embodiment, the substrate is carbon fiber and excess substrate is removed by abrasion.
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