公开(公告)号：US20200263926A1

公开(公告)日：2020-08-20

申请号：US16743507

申请日：2020-01-15

申请人： Shanghai University

发明人： Jianbo YU ,  Zhongming REN ,  Xia LI ,  Zhenqiang ZHANG ,  Jiang WANG ,  Yujia ZHANG

IPC分类号： F27D11/08 ,  F27D27/00 ,  F27B14/10 ,  F27B14/06 ,  F27B14/20 ,  F27B14/08 ,  F27D99/00 ,  F27D9/00

摘要： A chaotic stirring device combining plasma arc smelting and permanent magnet including a furnace body; the furnace body is provided therein with a water-cooled copper crucible; the center of an upper surface of the water-cooled copper crucible is a groove for placing raw metals, and the water-cooled copper crucible is internally a hollow cavity; a return pipe is disposed directly below the groove in the hollow cavity; an upper end of the return pipe is vertical upward, and is horizontally provided with a filter screen; a spherical magnet is placed between the filter screen and the groove; one side of the water-cooled copper crucible is provided with a first water inlet pipe and a first water outlet pipe; the first water inlet pipe is connected to the hollow cavity, and the first water outlet pipe is connected to the bottom of the return pipe.

公开(公告)号：US20230114361A1

公开(公告)日：2023-04-13

申请号：US18080921

申请日：2022-12-14

申请人： Shanghai University

发明人： Jiang WANG ,  Zhongming REN ,  Chaoyue CHEN ,  Ruixin ZHAO

IPC分类号： B22F3/10 ,  B22F10/00

摘要： A laser-solid-forming manufacturing device includes a laser emitter, a magnetic field generator, and a forming platform. The laser emitter emits a laser beam which acts on a feedstock to form a molten pool. The magnetic field generator includes a spiral copper coil, a first electrode and a second electrode. The spiral copper coil is formed by spirally winding a copper tube. The first and second electrodes are arranged at respective ends of the copper tube and are used for loading a voltage to generate a magnetic field in the spiral copper coil. At any time, the spiral copper coil sleeves an action point of the laser beam and the feedstock. A corresponding laser-solid-forming manufacturing method is also presented.

公开(公告)号：US20210001400A1

公开(公告)日：2021-01-07

申请号：US16919343

申请日：2020-07-02

申请人： Shanghai University

发明人： Zhongming REN ,  Jiang WANG ,  Jianwen NIE ,  Chaoyue CHEN ,  Wei LIU ,  Ruixin ZHAO

IPC分类号： B22F3/10 ,  B22F3/105

摘要： A laser-solid-forming manufacturing device includes a laser emitter, a magnetic field generator, and a forming platform. The laser emitter emits a laser beam which acts on a feedstock to form a molten pool. The magnetic field generator includes a spiral copper coil, a first electrode and a second electrode. The spiral copper coil is formed by spirally winding a copper tube. The first and second electrodes are arranged at respective ends of the copper tube and are used for loading a voltage to generate a magnetic field in the spiral copper coil. At any time, the spiral copper coil sleeves an action point of the laser beam and the feedstock. A corresponding laser-solid-forming manufacturing method is also presented.

公开(公告)号：US20220288695A1

公开(公告)日：2022-09-15

申请号：US17635442

申请日：2020-09-17

申请人： SHANGHAI UNIVERSITY

发明人： Zhongming REN ,  Jiang WANG ,  Chaoyue CHEN ,  Sansan SHUAI ,  Tao HU ,  Ruixin ZHAO ,  Wei LIU

IPC分类号： B22F12/60 ,  B22F12/30 ,  B22F12/41 ,  B22F12/50 ,  B22F12/20

摘要： A high-energy beam additive manufacturing forming device and forming method, comprising a magnetic field unit for assisting additive forming, and further comprising a forming base (6) for placing a material (12) to be processed, and a high-energy beam generation device which emits a high-energy beam, acts on the material (12) to be processed and forms a molten pool (15). The magnetic field unit comprises a first magnetic field generating device (7), and the first magnetic field generating device (7) comprises an induction coil (20) provided below the molten pool (15). The first magnetic field generating device (7) is detachably provided below a surface, used for containing the material (12) to be processed, of the forming base (6); second magnetic field generating devices (16) are provided above the forming base (6); the induction coil (20) is provided below the molten pool (15), and the molten pool (15) is located in an area, where clustered magnetic induction lines are emitted, of the induction coil (20), so that the clustered magnetic induction lines penetrate through the molten pool (15). Therefore, the magnetic field intensity of the molten pool (15) is concentrated, the control effect of the magnetic field on additive forming is improved, and the control efficiency of the magnetic field unit on the molten pool (15) is improved.