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    THREE DIMENSIONAL PRINTING SYSTEM
    3.
    发明申请
    THREE DIMENSIONAL PRINTING SYSTEM 有权

    公开(公告)号：US20220288865A1

    公开(公告)日：2022-09-15

    申请号：US17828541

    申请日：2022-05-31

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

    Inventor： Xavier Soler Pedemonte ,  Esteve Comas Cespedes ,  Juan Ramos Campos

    IPC: B29C64/393 ,  B29C64/268 ,  B29C64/165

    Abstract: A method and system for a three dimensional printing system are described herein. In one example, the three dimensional printing system has a moveable carriage, an array of laser modules and a print controller. In this example, the moveable carriage has a print head arranged to selectively deposit a printing agent on to a layer of build material as the moveable carriage is moved relative to the layer of build material. The printing agent controls localized fusing of the build material on application of energy. The print controller is communicatively coupled to the array of laser modules and controls activation of individual laser modules of the array of laser modules so as to apply, selectively, energy to addressable sub-regions of the layer of build material on which printing agent has been deposited to control fusing together with the deposited printing agent.

    PREHEAT DYED BUILD MATERIALS WITH PREHEATING SOURCES
    7.
    发明申请
    PREHEAT DYED BUILD MATERIALS WITH PREHEATING SOURCES 有权

    公开(公告)号：US20210016350A1

    公开(公告)日：2021-01-21

    申请号：US16608269

    申请日：2018-04-10

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

    Inventor： Alex Veis ,  Joaquim Brugue Garvi ,  Esteve Comas Cespedes

    IPC: B22F3/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/295 ,  B29C64/393

    Abstract: An example of an additive manufacturing system is disclosed. The example disclosed herein comprises a build material distributor, a color module, a preheating source, and a controller. The build material distributor is to form build material layers. The color module is to eject a composition that dyes a build material layer with a color. The preheating source is to emit energy at a wavelength related to the dyed build material color so that at least a 40% of the energy is absorbed by the dyed build material. The controller is to receive printing instructions to print a 3D object, wherein the printing instructions define an area to be fused in a build material layer. The controller is also to instruct the build material distributor to form the build material layer. The controller is to instruct the color module to eject the composition to color the build material from the build material layer in a zone comprising the area to be fused. The controller is further to control the preheating source to emit energy to preheat the build material layer.

    GENERATING A THREE-DIMENSIONAL OBJECT
    8.
    发明申请
    GENERATING A THREE-DIMENSIONAL OBJECT 审中-公开

    公开(公告)号：US20190299535A1

    公开(公告)日：2019-10-03

    申请号：US16442363

    申请日：2019-06-14

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

    Inventor： Alejandro Manuel De Pena ,  Esteve Comas Cespedes ,  Luis Baldez

    IPC: B29C64/386 ,  B29C64/40 ,  B29C64/165 ,  B33Y50/02 ,  B29C64/00 ,  B33Y30/00 ,  B33Y10/00

    Abstract: According to one aspect there is provided an apparatus for generating a three-dimensional object. The apparatus may include a first agent distributor to selectively deliver a coalescing agent onto portions of a layer of build material, a second agent distributor to selectively deliver a coalescence modifier agent onto portions of the layer of build material, and a controller to control the first and second distributors to selectively deliver each of the agent and the coalescence modifier onto the layer of build material in respective patterns derived from data representing a slice of a three-dimensional object to be generated, in which when energy is applied to the layer of build material, the build material coalesces and solidifies to form a slice of the three-dimensional object in accordance the patterns and the three-dimensional object has mechanical object properties that are related to the patterns.

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