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    ULTRASONIC CONSOLIDATION OF CONTINUOUS FILAMENT MATERIALS FOR ADDITIVE MANUFACTURING
    11.
    发明申请
    ULTRASONIC CONSOLIDATION OF CONTINUOUS FILAMENT MATERIALS FOR ADDITIVE MANUFACTURING 有权

    公开(公告)号：US20230048983A1

    公开(公告)日：2023-02-16

    申请号：US17400543

    申请日：2021-08-12

    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

    Inventor： Eric Barnes ,  Vernon M. Benson ,  David Ivankovich

    IPC: B29C64/295 ,  B29C64/218 ,  B29C64/118 ,  B33Y30/00 ,  B33Y40/10

    Abstract: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system, such as a robot, operable to move in at least three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part, a heat source for pre-heating the material as it is being deposited from the placement module and a compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic horn that is ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.

    AUTOMATED METHODS FOR MANUFACTURING SHEETS OF COMPOSITE MATERIAL AND COMPOSITE STRUCTURES, PATTERN PREPARATION AND FORMING SYSTEMS, AND SHEETS OF COMPOSITE MATERIAL
    15.
    发明公开
    AUTOMATED METHODS FOR MANUFACTURING SHEETS OF COMPOSITE MATERIAL AND COMPOSITE STRUCTURES, PATTERN PREPARATION AND FORMING SYSTEMS, AND SHEETS OF COMPOSITE MATERIAL 审中-公开

    公开(公告)号：US20230249416A1

    公开(公告)日：2023-08-10

    申请号：US17592738

    申请日：2022-02-04

    Applicant: Northrop Grumman Systems Corporation

    Inventor： Christopher J. Madsen ,  Vernon M. Benson

    IPC: B29C70/38 ,  B29C70/54

    CPC classification number: B29C70/382 ,  B29C70/386 ,  B29C70/54

    Abstract: Automated methods of forming composite structures may include applying fibers having various predetermined lengths to a removable backing material to form a net shape or near net shape pattern for forming a composite structure having a varying transverse cross-section. Sheets of composite material may comprise strips of composite material adhered to a backing material in a net shape or near net shape pattern for forming a composite structure with a varying transverse cross-section. Further methods of manufacturing sheets of composite material may comprise applying fibers having various predetermined lengths to a removable backing material in a net shape or near net shape pattern for forming a composite structure having a varying transverse cross-section. Pattern preparation systems may include a material placement device programmed and configured to apply fibers having various predetermined lengths to a removable backing material. Forming systems may include an indicia locating device.

    ULTRASONIC DEVICE FOR COMPACTION ALLOWING COORDINATED ACTUATION AND MOTION OF MULTIPLE ULTRASONIC COMPACTION HORNS
    16.
    发明申请
    ULTRASONIC DEVICE FOR COMPACTION ALLOWING COORDINATED ACTUATION AND MOTION OF MULTIPLE ULTRASONIC COMPACTION HORNS 有权

    公开(公告)号：US20230046067A1

    公开(公告)日：2023-02-16

    申请号：US17400701

    申请日：2021-08-12

    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

    Inventor： Vernon M. Benson

    IPC: B29C64/194 ,  B33Y30/00 ,  B29C64/118 ,  B29C64/209

    Abstract: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system operable to move in at least three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part and an ultrasonic compaction device for compacting the material as it is being deposited from the placement module. The compaction device includes an ultrasonic driver, an attachment member and a plurality of ultrasonic horns independently coupled to the attachment member and being movable independent of each other. The plurality of ultrasonic horns are ultrasonically vibrated to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.

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