IN SITU MULTI-PHASE SENSING FOR 3D PRINTING

    公开(公告)号:US20220088684A1

    公开(公告)日:2022-03-24

    申请号:US17478525

    申请日:2021-09-17

    Abstract: In various aspects, 3D printers, and sensor systems coupled to or integrated with the 3D printers are disclosed. The sensor systems may include image and second sensors for detecting potential defects or print artifacts. During printing, an energy beam source forms a weld pool by melting selected regions of print material, which solidifies to produce the build piece. The image sensor may image an area including the weld pool to determine a landing location of matter ejected during the heating of print material to form the weld pool. The second sensor may detect a defect in the build piece based on the determination of the landing location. Print operation may be suspended while the sensor data is used to repair the defect, after which 3D printing resumes. In this way, for example, high quality build pieces can be produced with reduced post-processing times, and hence a higher manufacturing throughput.

    VARIABLE BEAM GEOMETRY LASER-BASED POWDER BED FUSION

    公开(公告)号:US20190275612A1

    公开(公告)日:2019-09-12

    申请号:US15914874

    申请日:2018-03-07

    Inventor: Chor Yen YAP

    Abstract: Systems and methods of adapting the geometrical shape of a laser beam in laser-based powder-bed fusion (PBF) are provided. An apparatus for laser-based powder-bed fusion includes a depositor that deposits a plurality of layers of a powder material. The apparatus further includes a laser beam source that generates a laser beam having a variable beam geometry. A laser application component applies the laser beam in one of a plurality of beam geometries to fuse the powder material to construct a build piece.

    VARIABLE BEAM GEOMETRY LASER-BASED POWDER BED FUSION

    公开(公告)号:US20220097174A1

    公开(公告)日:2022-03-31

    申请号:US17547064

    申请日:2021-12-09

    Inventor: Chor Yen YAP

    Abstract: Systems and methods of adapting the geometrical shape of a laser beam in laser-based powder-bed fusion (PBF) are provided. An apparatus for laser-based powder-bed fusion includes a depositor that deposits a plurality of layers of a powder material. The apparatus further includes a laser beam source that generates a laser beam having a variable beam geometry. A laser application component applies the laser beam in one of a plurality of beam geometries to fuse the powder material to construct a build piece.

    POWDER-BED FUSION BEAM SCANNING
    9.
    发明申请

    公开(公告)号:US20180311760A1

    公开(公告)日:2018-11-01

    申请号:US15582470

    申请日:2017-04-28

    Abstract: Systems and methods for beam scanning for powder bed fusion (PBF) systems are provided. A PBF apparatus can include a structure that supports a layer of powder material, an energy beam source that generates an energy beam, and a deflector that applies the energy beam to fuse an area of the powder material in the layer at multiple locations, the deflector being further configured to apply the energy beam to each of the locations multiple times. A PBF apparatus can include a deflector configured to provide multiple scans to a layer powder material supported by the structure. A PBF apparatus can include a deflector that applies the energy beam to fuse an area of the powder material in the layer at multiple locations, the deflector being further configured to apply the energy beam in a raster scan.

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