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    REGION OF INTEREST MONITORING AND CONTROL FOR ADDITIVE MANUFACTURING
    3.
    发明申请
    REGION OF INTEREST MONITORING AND CONTROL FOR ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：WO2019212492A1

    公开(公告)日：2019-11-07

    申请号：PCT/US2018/030228

    申请日：2018-04-30

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

    Inventor： KOTHARI, Sunil ,  CATANA, Juan, Carlos ,  HEILES, Tod

    IPC: B29C64/393 ,  B33Y50/02

    Abstract: In some examples, with respect to region of interest monitoring and control for additive manufacturing, a blob detection analysis may be performed on first and second component images associated with additive manufacturing of a component, and blobs that remain a same shape and include same centroids on the first and second component images may be identified. A further blob detection analysis may be performed on first and second thermal images associated with the first and second component images, and a determination may be made as to whether one of the identified blobs includes a same shape and a different centroid between the first and second thermal images. Based on a determination that the one of the identified blobs includes the same shape and the different centroid, an indication of a thermal camera misalignment associated with the additive manufacturing may be generated.

    IDENTIFYING PASSES OF ADDITIVE MANUFACTURING PROCESSES DEPICTED IN THERMAL IMAGES
    4.
    发明申请
    IDENTIFYING PASSES OF ADDITIVE MANUFACTURING PROCESSES DEPICTED IN THERMAL IMAGES 审中-公开

    公开(公告)号：WO2019182552A1

    公开(公告)日：2019-09-26

    申请号：PCT/US2018/023115

    申请日：2018-03-19

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

    Inventor： KOTHARI, Sunil ,  CATANA, Juan Carlos ,  HEILES, Tod ,  ZENG, Jun ,  DISPOTO, Gary J.

    IPC: B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/10 ,  B29C64/20 ,  B29C64/393

    Abstract: In an example, an apparatus includes an image processing system, a print engine, and a vision system. The image processing system generates electronic signals based on a model of an object to be fabricated using an additive manufacturing process. The print engine performs the additive manufacturing process in a plurality of passes based on the electronic signals. The vision system acquires a plurality of thermal images of the plurality of passes and assigns individual passes to individual images based on data acquired during a build of a calibration object by the additive manufacturing process. The print engine may further include a material coater to spread a powder coating material, a plurality of fluid ejection devices to eject a fusing agent, and an emitter to emit energy to fuse the fusing agent and the powder coating material into a layer of the object to be fabricated.

    PRODUCTION SITE SIMULATION
    8.
    发明申请
    PRODUCTION SITE SIMULATION 审中-公开
    生产现场模拟

    公开(公告)号：WO2015116114A1

    公开(公告)日：2015-08-06

    申请号：PCT/US2014/013921

    申请日：2014-01-30

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

    Inventor： KOTHARI, Sunil ,  ZENG, Jun ,  DISPOTO, Gary J

    IPC: G06F19/00

    CPC classification number: G06Q10/0637 ,  G06F17/5009 ,  G06F17/5022 ,  G06Q10/067 ,  G06Q10/10 ,  G06Q30/0201 ,  G06Q30/0205

    Abstract: A user interface (71) to a computing device (90) receives geographic locations for a plurality of production sites. A socio-economic relevancy analyzer (72) determines relevancy of socio-economic information for the plurality of production sites. A socio-economic events analyzer (73) performs analysis of potential effects of the socio-economic information obtained by the socio-economic event relevancy analyzer (72) as pertains to the plurality of production sites. A simulator (74) simulates production of each of the production sites. The simulator (74) utilizes analysis of potential effects of the socio-economic information performed by the socio-economic events analyzer (73).

    Abstract translation: 向计算设备（90）的用户界面（71）接收多个生产站点的地理位置。 社会经济相关性分析器（72）确定了多个生产场所的社会经济信息的相关性。 社会经济事件分析器（73）对社会经济事件相关性分析器（72）获得的与多个生产场所有关的社会经济信息的潜在影响进行分析。 模拟器（74）模拟每个生产现场的生产。 模拟器（74）利用社会经济事件分析器（73）所进行的社会经济信息的潜在影响分析。

    DETERMINING POWDER DEGRADATION
    9.
    发明申请
    DETERMINING POWDER DEGRADATION 审中-公开

    公开(公告)号：WO2022191822A1

    公开(公告)日：2022-09-15

    申请号：PCT/US2021/021445

    申请日：2021-03-09

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

    Inventor： WRIGHT, Jacob ,  LEYVA MENDIVIL, Maria Fabiola ,  CHEN, Lei ,  KOTHARI, Sunil ,  ZENG, Jun

    IPC: B29C64/393 ,  B33Y50/02

    Abstract: An example system includes a simulation engine to determine a plurality of thermal states that will be experienced by powder at a voxel of a three-dimensional print volume as a result of printing a particular build. Each thermal state corresponds to a time during the printing or cooling from the printing. The system includes a stress engine to calculate a stress to the powder at the voxel based on the plurality of thermal states. The system includes a degradation engine to determine an amount of degradation of the powder at the voxel based on the stress.

    PRINTING PRODUCTION QUALITY PREDICTION
    10.
    发明申请
    PRINTING PRODUCTION QUALITY PREDICTION 审中-公开

    公开(公告)号：WO2019209301A1

    公开(公告)日：2019-10-31

    申请号：PCT/US2018/029580

    申请日：2018-04-26

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

    Inventor： KOTHARI, Sunil ,  ZENG, Jun ,  DISPOTO, Gary J. ,  SEAN, Viseth

    IPC: B29C64/386 ,  B33Y50/00

    Abstract: A system and method for providing three dimensional printing production quality prediction is described herein. The system may include logic to scan a region of interest associated with a layer of a plurality of parts during printing to obtain an input for the region of interest and compute an input metric associated with the layer based on the input. In response to an initial set of print jobs, at least a portion of the plurality of parts is mechanically tested to determine at least one output. In response to a production print job, a likelihood of a part of the plurality of parts to satisfy a quality specification is predicted by inputting the input metric to at least one machine learning function comprising the at least one output, wherein the at least one machine learning function is trained during the initial set of print jobs.

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