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    Multi-field composite-based additive manufacturing device and multi-field composite-based additive manufacturing method
    1.
    发明授权
    Multi-field composite-based additive manufacturing device and multi-field composite-based additive manufacturing method 有权

    公开(公告)号：US12145292B2

    公开(公告)日：2024-11-19

    申请号：US17785914

    申请日：2020-11-26

    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Yusheng Shi ,  Rongzhen Liu ,  Gong Chen ,  Yu Yang ,  Jie Liu ,  Shifeng Wen ,  Jiamin Wu

    IPC: B33Y10/00 ,  B28B1/00 ,  B33Y30/00

    Abstract: The present invention belongs to the technical field related to additive manufacturing, and provides a multi-field composite-based additive manufacturing device and method. The device comprises a powder delivery adjustment module, a sound field control module, a microwave field/thermal field control module and a microprocessor. The powder delivery adjustment module, the sound field control module and the microwave field/thermal field control module are respectively connected to the microprocessor; the powder delivery adjustment module comprises a raw material dispersion chamber, and the raw material dispersion chamber is provided within a forming cavity formed by a housing; the sound field control module is also provided within the forming cavity and is located below the raw material dispersion chamber; the microwave field/thermal field control module comprises a plurality of microwave generators provided in the forming cavity, the plurality of microwave generators are respectively located at two sides of a forming area.

    Independently temperature-controlled high-temperature selective laser sintering frame structure
    3.
    发明授权
    Independently temperature-controlled high-temperature selective laser sintering frame structure 有权

    公开(公告)号：US10821675B2

    公开(公告)日：2020-11-03

    申请号：US16357791

    申请日：2019-03-19

    Applicant: Huazhong University of Science and Technology

    Inventor： Shifeng Wen ,  Peng Chen ,  Chunze Yan ,  Lei Yang ,  Zhaoqing Li ,  Hongzhi Wu ,  Yusheng Shi

    IPC: B29C64/153 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/245 ,  B29K71/00

    Abstract: The present disclosure belongs to the technical field of advanced manufacturing auxiliary equipment, and discloses an independently temperature-controlled high-temperature selective laser sintering frame structure, comprising a galvanometric laser scanning system, a powder feeding chamber, a forming chamber and a heat-insulating composite plate, and targeted optimization design is performed on the respective functional components. According to the invention, the independently temperature-controlled frame structure can simultaneously ensure the uniformity of the powder preheating temperature field of the powder feeding chamber platform and the uniformity of the processing temperature field of the forming chamber platform, so that powder on the powder feeding chamber platform can reach the sinterable temperature before being conveyed, and conveyance of cold powder to the sintered melt is avoided, thereby reducing the possibility of warpage of the parts while reducing actual sintering delay time and improving actual sintering efficiency. The independently temperature-controlled frame structure of the present disclosure is particularly suitable for high-temperature laser sintering of high-performance polymers such as polyaryletherketones and aromatic polyamides at 400° C.

    Superconducting power generation device and power generation method
    6.
    发明授权
    Superconducting power generation device and power generation method 有权

    公开(公告)号：US12027952B2

    公开(公告)日：2024-07-02

    申请号：US17646376

    申请日：2021-12-29

    Applicant: Huazhong University of Science and Technology

    Inventor： Bin Su ,  Zheng Ma ,  Chunze Yan ,  Yusheng Shi

    IPC: H02K55/00 ,  H02K5/20 ,  H02K9/19

    CPC classification number: H02K55/00 ,  H02K5/20 ,  H02K9/19

    Abstract: The present disclosure provides a superconducting power generation device and a power generation method. The device includes a superconductor, a conductive coil, a permanent magnet and a cooling medium. When ambient temperature is lower than its superconducting critical temperature, the superconductor, made of the second-type superconducting material, is capable of generating a magnetic levitation force to an outer permanent magnet and levitate it. When an external force is applied to the permanent magnet, its position changes compared to the conductive coil, which affects the magnetic flux passing through the coil and induces the generation of electromotive force in the coil, thereby converting mechanical energy to electric energy. By using the device provided by the present disclosure, the conversion from the mechanical energy to the electric energy in an ultra-low temperature environment can be achieved, and thus, problems about energy sources on low-temperature celestial bodies in extrasolar systems are solved.

    Polymer multi-material high-flexibility laser additive manufacturing system and method thereof
    9.
    发明授权
    Polymer multi-material high-flexibility laser additive manufacturing system and method thereof 有权

    公开(公告)号：US11110663B2

    公开(公告)日：2021-09-07

    申请号：US16248296

    申请日：2019-01-15

    Applicant: Huazhong University of Science and Technology

    Inventor： Chunze Yan ,  Hongzhi Wu ,  Yusheng Shi ,  Shifeng Wen ,  Lichao Zhang

    IPC: B29C64/393 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/118 ,  B29C64/209 ,  B29C64/268

    Abstract: The invention belongs to the field of filament additive manufacturing, and discloses a polymer multi-material high-flexibility laser additive manufacturing system and a method thereof. The system comprises a first robot arm, a second robot arm, a positioner, a rotational extrusion nozzle in which a plurality of extrusion modules are disposed and a laser, each extrusion module is used for extruding one kind of filament, and the rotational extrusion nozzle is connected with the first robot which drives the rotational extrusion nozzle to move according to a preset trajectory; the laser is connected with the second robot, and is used for emitting a laser to fuse the filament extruded from the rotational extrusion nozzle, and through the cooperative motion of the first robot and the second robot, the extrusion and fusion of the filament are performed synchronously; the positioner serves as a forming mesa, and the rotation of the positioner cooperates with the motions of the two robots. With the present invention, problems such as easy blocking and short service life of the extrusion nozzle in the FDM forming are solved, thereby ensuring high flexibility of the manufacturing system and achieving the extrusion forming of the multi-material filaments.

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