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    THREE-DIMENSIONAL PRINTING
    2.
    发明申请
    THREE-DIMENSIONAL PRINTING 有权

    公开(公告)号：US20210245247A1

    公开(公告)日：2021-08-12

    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: B22F10/47 ,  B22F10/14 ,  B22F1/00 ,  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
    4.
    发明公开
    THREE-DIMENSIONAL PRINTING 审中-公开

    公开(公告)号：US20240246147A1

    公开(公告)日：2024-07-25

    申请号：US18628434

    申请日：2024-04-05

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

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

    IPC: B22F10/14 ,  B22F1/107 ,  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.

    INCREASING ENERGY ABSORPTION DURING ADDITIVE MANUFACTURING
    5.
    发明公开
    INCREASING ENERGY ABSORPTION DURING ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：US20230286054A1

    公开(公告)日：2023-09-14

    申请号：US18020006

    申请日：2020-08-06

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

    Inventor： Vladek P. Kasperchik ,  Emre Hiro Discekici ,  Krzysztof Nauka

    IPC: B22F10/85 ,  B22F10/16 ,  B22F10/31 ,  B22F12/41

    CPC classification number: B22F10/85 ,  B22F10/16 ,  B22F10/31 ,  B22F12/41 ,  B33Y10/00

    Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a build material distributor to deposit powder build material on a surface and an agent distribution system to selectively deposit various colored fusing agents and an ultraviolet absorbing agent on the powder build material in a pattern of a layer of a three-dimensional (3D) object to be printed. An irradiation source selectively fuses powder build material with colored fusing agent disposed thereon. The additive manufacturing system also includes a controller. The controller, per location of the layer of the 3D object to be printed 1) determines an energy absorption at the location based on an absorptivity of colored fusing agents deposited at that location and 2) determines an additive manufacturing adjustment to be made at the location to bring the energy absorption at the location to a target level.

    Three-dimensional printing
    7.
    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.

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