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    AGENT DROPLET DEPOSITION DENSITY DETERMINATIONS FOR POROUS ARTICLES
    3.
    发明申请
    AGENT DROPLET DEPOSITION DENSITY DETERMINATIONS FOR POROUS ARTICLES 审中-公开

    公开(公告)号：WO2023009107A1

    公开(公告)日：2023-02-02

    申请号：PCT/US2021/043327

    申请日：2021-07-27

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

    Inventor： MCKINNELL, James Charles ,  REID, Carl Ricklef ,  SURI, Pavan Kumar ,  BRIDEN, John Joseph

    IPC: B22F10/38 ,  B22F10/85 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

    Abstract: According to examples, a non-transitory computer-readable medium may have stored thereon instructions that may cause a processor to identify a first porosity level range that a first portion of a layer of build material particles is to have. The processor may also determine a density level at which an agent is to be deposited as droplets onto the first portion of the layer of the build material particles to cause the first portion of the layer to have a porosity that is within the identified first porosity level range. The processor may further store the determined density level, in which an article including the first portion having a porosity level that is within the identified first porosity level range is to be fabricated from the build material particles based on the determined density level.

    ATTENUATION CHARACTERISTICS FOR OBJECTS
    4.
    发明申请
    ATTENUATION CHARACTERISTICS FOR OBJECTS 审中-公开

    公开(公告)号：WO2023282895A1

    公开(公告)日：2023-01-12

    申请号：PCT/US2021/040705

    申请日：2021-07-07

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

    Inventor： REMACHA CORBALAN, Clara ,  PALACIOS CAMARERO, Virginia

    IPC: B29C64/393 ,  B33Y50/02 ,  B33Y80/00 ,  G01D18/00 ,  A61B6/00

    Abstract: In an example, a method includes receiving an image indicative of attenuation of radiation by a first object. The method may include deriving object model data for use in generating a second object representing the first object in a radiation environment, using additive manufacturing. In some examples deriving the object model data includes deriving, from the image, a plurality of zones, each associated with a different radiation attenuation level, determining a radiation condition of the radiation environment, selecting, for each zone and based on the radiation condition, an additive manufacturing attribute comprising an additive manufacturing material and/or a material density for each zone, wherein the additive manufacturing attributes are associated with attenuation characteristics and deriving the object model data by combining selected additive manufacturing attributes to specify a plurality of regions of the second object, which, when the second object is generated, correspond to a geometrical configuration of the zones.

    PRINT AGENT COVERAGE AMOUNTS IN ADDITIVE MANUFACTURING
    6.
    发明申请
    PRINT AGENT COVERAGE AMOUNTS IN ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：WO2023277863A1

    公开(公告)日：2023-01-05

    申请号：PCT/US2021/039359

    申请日：2021-06-28

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

    Inventor： CODINA SABORIT, Arnau ,  BAUTISTA BALLESTER, Jordi ,  RIPOLL OLIVERAS, Albert

    IPC: B29C64/393 ,  B33Y50/02 ,  B22F10/85

    Abstract: A method includes generating a plurality of calibration objects using additive manufacturing in a plurality of layers in which other objects are generated, wherein the other objects fill a predetermined proportion of the layers, and the objects are generated using a predetermined coverage amount of a cooling agent. A measurement of a physical property of each calibration object may be obtained by processing circuitry. The measurements may include a first set of measurements of calibration objects generated with different filled proportions of the layers, and a second set of measurements of calibration objects generated with different coverage amounts. The method may include characterising, by processing circuitry and based on the sets of measurements, a relationship between cooling agent coverage amounts and an indication of an amount of radiation received by the calibration object which is reflected from build material during object generation, the relationship useful in generating subsequent objects.

    RELAYING ENERGY TO DEVICE NODES
    7.
    发明申请
    RELAYING ENERGY TO DEVICE NODES 审中-公开

    公开(公告)号：WO2022250652A1

    公开(公告)日：2022-12-01

    申请号：PCT/US2021/033911

    申请日：2021-05-24

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

    Inventor： SIMS, Tyler ,  ALLEN, William ,  WANG, Qiwei

    IPC: H02J50/90

    Abstract: In one example, a method of relaying energy to device nodes is disclosed. The method includes transmitting energy waves into an aggregated node group with multiple device nodes. The transmitted energy waves are to actuate the device nodes into a higher power state and in part for storage by the device nodes. Energy streams reflected by the aggregated node group may be captured to indicate actuated and non-actuated device nodes. The method determines a target low power state device node from the non-actuated low power state device nodes and determine neighboring higher power state device nodes proximate to the target low power state device node. A communication signal may be transmitted to the neighboring higher power state device nodes directing them to relay the stored energy to the target low power state device node to actuate the target low power state device node into a higher power state.

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