Three-dimensional printing
At a print temperature, a layer (having a predetermined height) of metal build material particles is formed. Also at the print temperature, a fluid containing metal nanoparticles is selectively applied to at least a portion of the layer, and at a fluid loading that wets the portion through the prede...
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Format | Patent |
Language | English |
Published |
24.05.2022
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Subjects | |
Online Access | Get full text |
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Abstract | At a print temperature, a layer (having a predetermined height) of metal build material particles is formed. Also at the print temperature, a fluid containing metal nanoparticles is selectively applied to at least a portion of the layer, and at a fluid loading that wets the portion through the predetermined height without saturating the portion. The metal nanoparticles are exposed to a sintering temperature that is higher than the print temperature and at least 500° below a melting point of the metal build material particles using a predetermined number of heating events taking place at a predetermined speed or for a predetermined time, and separated by a predetermined delay time, to bind the metal build material particles together to form a bound layer. A build material surface is cooled to or below the print temperature. The forming, selectively applying, exposing, and cooling are repeated to form a part precursor. |
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AbstractList | At a print temperature, a layer (having a predetermined height) of metal build material particles is formed. Also at the print temperature, a fluid containing metal nanoparticles is selectively applied to at least a portion of the layer, and at a fluid loading that wets the portion through the predetermined height without saturating the portion. The metal nanoparticles are exposed to a sintering temperature that is higher than the print temperature and at least 500° below a melting point of the metal build material particles using a predetermined number of heating events taking place at a predetermined speed or for a predetermined time, and separated by a predetermined delay time, to bind the metal build material particles together to form a bound layer. A build material surface is cooled to or below the print temperature. The forming, selectively applying, exposing, and cooling are repeated to form a part precursor. |
Author | Erickson, Kristopher J |
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Notes | Application Number: US201716077330 |
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RelatedCompanies | HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P |
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Snippet | At a print temperature, a layer (having a predetermined height) of metal build material particles is formed. Also at the print temperature, a fluid containing... |
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SubjectTerms | ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WORKING METALLIC POWDER |
Title | Three-dimensional printing |
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