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.

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.