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    THREE-DIMENSIONAL PRINTING
    36.
    发明申请
    THREE-DIMENSIONAL PRINTING 有权

    公开(公告)号：US20210362240A1

    公开(公告)日：2021-11-25

    申请号：US16603332

    申请日：2018-04-30

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Mohammed S. Shaarawi ,  James McKinnell ,  Vladek Kasperchik

    IPC: B22F10/43 ,  B22F10/14 ,  B22F3/10 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y80/00 ,  B33Y70/00

    Abstract: In an example of a method for three-dimensional (3D) printing, metallic build material layers are patterned to form an intermediate structure. During patterning, a binding agent is selectively applied to define: a build material support structure and a patterned intermediate part. Also during patterning, i) the binding agent and a separate agent including an etch sensitizer or ii) a combined agent including a binder and the etch sensitizer are selectively applied to define a patterned etchable connection between at least a portion of the build material support structure and at least a portion patterned intermediate part. The intermediate structure is heated.

    THREE-DIMENSIONAL (3D) PRINTING
    39.
    发明申请
    THREE-DIMENSIONAL (3D) PRINTING 审中-公开

    公开(公告)号：US20190047045A1

    公开(公告)日：2019-02-14

    申请号：US16073173

    申请日：2016-04-19

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

    Inventor： Mohammed S. Shaarawi ,  James McKinnell ,  Vladek Kasperchik ,  David A. Champion ,  Greg Scott Long

    IPC: B22F1/00 ,  B22F3/105 ,  B22F9/04

    Abstract: In a three-dimensional printing method example, a liquid functional agent is selectively applied. The liquid functional agent includes an alloying agent. A metallic build material is applied. The liquid functional agent is selectively applied before the metallic build material, after the metallic build material, or both before and after the metallic build material. The liquid functional agent patterns the metallic build material to form a composite layer. At least some of the metallic build material is exposed to energy to melt the at least some of the metallic build material to form a layer. Upon contact or after energy exposure, the alloying agent and the build material alter a composition of the composite layer.

    THREE-DIMENSIONAL (3D) PRINTING
    40.
    发明申请
    THREE-DIMENSIONAL (3D) PRINTING 审中-公开

    公开(公告)号：US20180272600A1

    公开(公告)日：2018-09-27

    申请号：US15763172

    申请日：2016-01-29

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

    Inventor： Mohammed S. Shaarawi ,  Vladek Kasperchik ,  James McKinnell ,  David A. Champion

    IPC: B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/20 ,  B29C64/393 ,  B33Y70/00

    Abstract: In a three-dimensional printing method example, a liquid functional agent is selectively applied. The liquid functional agent includes i) an energy source material or ii) an energy sink material. A metallic or ceramic build material is applied. The liquid functional agent is selectively applied any of before the metallic or ceramic build material, after the metallic or ceramic build material, or both before and after the metallic or ceramic build material. The liquid functional agent patterns the metallic or ceramic build material to form a composite layer. At least some of the metallic or ceramic build material is exposed to energy. A reaction involving i) the energy source material or ii) the energy sink material is initiated to alter a thermal condition of the composite layer.

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