Build materials containing nanofibers for use with extrusion-based layered depositions systems
First Claim
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1. A method for building a three-dimensional object with an extrusion-based layered deposition system, the method comprising:
- feeding a build material to an extrusion component of the extrusion-based layered deposition system, the build material comprising a carrier material and nanofibers;
melting the carrier material of the build material in the extrusion component to form a melt comprising the carrier material and the nanofibers, the melt having an axial temperature profile;
extruding the melt from the extrusion component at an extrusion rate ranging from about 800 mics to about 2,500 mics, wherein the extruded melt has a surface and a central region, and further comprises;
a viscosity profile between the surface and the central region based in part on the axial temperature profile, the viscosity profile exhibiting a higher viscosity of the build material adjacent to the surface compared to the central region; and
a concentration profile of the nanofibers between the surface and the central region based on the viscosity profile, wherein the nanofiber concentration profile exhibits a higher concentration of the nanofibers adjacent to the surface compared to the central region; and
depositing the extruded melt in a layer-by-layer manner to build at least a portion of the three-dimensional object.
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Abstract
A method for building a three-dimensional object, the method comprising extruding a build material having a temperature profile between a surface and a central region of the extruded build material in which the surface has a higher temperature than the central region of the build material. The build material comprises a carrier material and nanofibers.
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20 Claims
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1. A method for building a three-dimensional object with an extrusion-based layered deposition system, the method comprising:
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feeding a build material to an extrusion component of the extrusion-based layered deposition system, the build material comprising a carrier material and nanofibers; melting the carrier material of the build material in the extrusion component to form a melt comprising the carrier material and the nanofibers, the melt having an axial temperature profile; extruding the melt from the extrusion component at an extrusion rate ranging from about 800 mics to about 2,500 mics, wherein the extruded melt has a surface and a central region, and further comprises; a viscosity profile between the surface and the central region based in part on the axial temperature profile, the viscosity profile exhibiting a higher viscosity of the build material adjacent to the surface compared to the central region; and a concentration profile of the nanofibers between the surface and the central region based on the viscosity profile, wherein the nanofiber concentration profile exhibits a higher concentration of the nanofibers adjacent to the surface compared to the central region; and depositing the extruded melt in a layer-by-layer manner to build at least a portion of the three-dimensional object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for building a three-dimensional object with an extrusion-based layered deposition system having an extrusion head, the method comprising:
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feeding a build material to a liquefier of the extrusion head, the build material comprising a carrier material and nanofibers; at least partially melting the carrier material in the liquefier to form a melt of the carrier material and the nanofibers, the melt having an axial temperature profile; generating a viscosity profile between a surface and a central region of the melt based in part on the axial temperature profile, the viscosity profile exhibiting a higher viscosity of the build material adjacent to the surface compared to the central region; generating a concentration profile of the nanofibers between the surface and the central region based on the viscosity profile, wherein the nanofibers concentration profile exhibits a higher concentration of the nanofibers adjacent to the surface compared to the central region; and depositing the melt from the extrusion head at a rate ranging from about 800 mics to about 2,500 mics, in a layer-by-layer manner to build at least a portion of the three-dimensional object. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification