Three dimensional printer with configurable build plate for rapid powder removal

    公开(公告)号:US12226824B2

    公开(公告)日:2025-02-18

    申请号:US17520582

    申请日:2021-11-05

    Abstract: Techniques for rapid powder removal in a 3-D printer are disclosed. In various embodiments, the 3-D printer has a build plate for supporting a build piece. The build plate includes first structures for supporting unfused powder on a top of the build plate when the first structures are in a closed configuration. The first structures can transition to an open configuration to expose paths for allowing the unfused powder to pass through the build plate, and a second structure for preventing the build piece from passing through the build plate when the first structures are in the open configuration. In various embodiments, the unfused powder can thereafter be replaced with cool powder to assist in forming a predictable microstructure that makes up the build piece.

    METHODS AND SYSTEMS FOR QUALITY INFERENCE AND CONTROL FOR ADDITIVE MANUFACTURING PROCESSES

    公开(公告)号:US20250041976A1

    公开(公告)日:2025-02-06

    申请号:US18922224

    申请日:2024-10-29

    Abstract: This disclosure describes an additive manufacturing method that includes monitoring a temperature of a portion of a build plane during an additive manufacturing operation using a temperature sensor as a heat source passes through the portion of the build plane; detecting a peak temperature associated with one or more passes of the heat source through the portion of the build plane; determining a threshold temperature by reducing the peak temperature by a predetermined amount; identifying a time interval during which the monitored temperature exceeds the threshold temperature; identifying, using the time interval, a change in manufacturing conditions likely to result in a manufacturing defect; and changing a process parameter of the heat source in response to the change in manufacturing conditions.

    Attachment structure having a connection member with multiple attachment features

    公开(公告)号:US12152629B2

    公开(公告)日:2024-11-26

    申请号:US18159046

    申请日:2023-01-24

    Abstract: The present aspects include an adhesive and mechanically bonded adapter or node. The adapter or node comprises a connection member, including: an outer wall extending in a first direction from a first proximal end to a first distal end; an inner wall extending within the outer wall, in the first direction, from a second proximal end to a second distal end; and a base wall extending from an inner surface of the outer wall to an outer surface of the inner wall between the first proximal end and the second proximal end; and wherein the outer wall, the inner wall, and the base wall define a space having a distance between the outer wall and the inner wall that varies in the first direction, wherein the space is configured to fixedly position an end portion of a tube inserted into the space such that the end portion is fixed to the inner surface of the outer wall and the outer surface of the inner wall.

    MULTIMODULAR RING MODE FIBER OPTIC CONFIGURATION, FINE PROCESS CONTROL STRATEGY FOR PRINTER OPTICS, AND LASER POWDER BED FUSION POWER CONSUMPTION OPTIMIZATION BY FEEDSTOCK MANIPULATION

    公开(公告)号:US20240383040A1

    公开(公告)日:2024-11-21

    申请号:US18669455

    申请日:2024-05-20

    Abstract: Systems and methods for multi modular ring mode fiber optic configuration, laser powder bed fusion, and fine process control during an additive manufacturing (AM) process. A multi-mode ring laser beam with a first power distributed in a first beam is generated, as a spot beam or a first ring beam, and a second power distributed in a second ring beam surrounding the first beam. The multi-mode ring laser beam is applied to one or more materials to transform the material(s) into an AM build piece. An AM method includes depositing a powder first material in a powder bed, exposing the powder first material to a second material, wherein an absorption coefficient of the second material is higher than an absorption coefficient of the first material at the wavelength, and applying a laser beam with a wavelength to the powder first material and the second material to generate a composite material. An AM method includes controlling an optical component to apply a laser beam to a region of material during an AM process, receiving sensor data regarding the region; determining a process characteristic of the region based on the sensor data, obtaining a comparison by comparing the process characteristic to a target characteristic, and modifying a variable corresponding to control of the optical component based on the comparison that modifies a printing output in accordance with a target output.

    MODULAR PRINTER
    8.
    发明公开
    MODULAR PRINTER 审中-公开

    公开(公告)号:US20240300172A1

    公开(公告)日:2024-09-12

    申请号:US18597693

    申请日:2024-03-06

    Abstract: The present aspects include an additive manufacturing (AM) system, comprising: a plurality of stations arranged proximate to one another. The plurality of stations includes at least: a first station and a second station; a first AM subsystem configured to dock at the first station and perform a first subsystem AM process; a second AM subsystem configured to dock at the second station and perform a second subsystem AM process; and a third AM subsystem configured to move between the first station and the second station. The AM system further includes a controller configured to control the third AM subsystem to perform an third subsystem AM process at the first station while the first AM subsystem is docked, to move the third AM subsystem from the first station to the second station, and to perform the third subsystem AM process at the second station while the second AM subsystem is docked.

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