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    Three-dimensional printing
    2.
    发明授权
    Three-dimensional printing 有权

    公开(公告)号：US11958110B2

    公开(公告)日：2024-04-16

    申请号：US17047513

    申请日：2018-10-29

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Jason C. Hower ,  Mohammed S. Shaarawi ,  Vladek P. Kasperchik ,  James McKinnell ,  Jennifer L. Wu

    IPC: B22F10/00 ,  B22F1/107 ,  B22F10/14 ,  B22F10/47 ,  B33Y10/00

    CPC classification number: B22F10/14 ,  B22F1/107 ,  B22F10/47 ,  B33Y10/00

    Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.

    THREE-DIMENSIONAL PRINTING WITH MELTING POINT SUPPRESSION AGENTS
    6.
    发明申请
    THREE-DIMENSIONAL PRINTING WITH MELTING POINT SUPPRESSION AGENTS 有权

    公开(公告)号：US20220274175A1

    公开(公告)日：2022-09-01

    申请号：US17637644

    申请日：2019-10-15

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  Mackensie C. Smith

    IPC: B22F10/14 ,  B22F10/64 ,  B22F10/30 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

    Abstract: A three-dimensional printing system can include a particulate build material including metal particles. The three-dimensional printing system can include a binding agent applicator fluidly coupled or coupleable to a binding agent. The three-dimensional printing system can include a suppression agent applicator fluidly coupled or coupleable to a melting point suppression agent, the melting point suppression agent including a dispersion of melting point suppression particles. The three-dimensional printing system can include a hardware controller to generate a command to direct the binding agent applicator to iteratively apply the binding agent to the particulate build material to form individually patterned object layers of a green body object, and direct the suppression agent applicator to iteratively apply the melting point suppression agent to a discrete location of the individually patterned object layers. The discrete location can include a discrete surface region of the green body object.

    THREE-DIMENSIONAL PRINTING
    10.
    发明申请
    THREE-DIMENSIONAL PRINTING 有权

    公开(公告)号：US20210402468A1

    公开(公告)日：2021-12-30

    申请号：US17052860

    申请日：2019-03-15

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Vladek Kasperchik ,  Krzysztof Nauka ,  Mohammed S. Shaarawi

    IPC: B22F1/00 ,  B22F10/28 ,  B22F10/10

    Abstract: Described herein are kits, methods, and systems for printing metal three-dimensional objects. In an example, described is a kit for three-dimensional printing comprising: powdered metal build material; and a binding fluid comprising a liquid vehicle, metal or metal precursor particles, and latex polymer particles dispersed in the liquid vehicle, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm, and wherein the metal or metal precursor particles comprise metal nanoparticles, metal oxide nanoparticles, metal oxide nanoparticles and a reducing agent, or combinations thereof.

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