US 12,214,423 B2
High-energy beam additive manufacturing forming device and forming method
Zhongming Ren, Shanghai (CN); Jiang Wang, Shanghai (CN); Chaoyue Chen, Shanghai (CN); Sansan Shuai, Shanghai (CN); Tao Hu, Shanghai (CN); Ruixin Zhao, Shanghai (CN); and Wei Liu, Shanghai (CN)
Assigned to SHANGHAI UNIVERSITY, (CN)
Appl. No. 17/635,442
Filed by SHANGHAI UNIVERSITY, Shanghai (CN)
PCT Filed Sep. 17, 2020, PCT No. PCT/CN2020/115774
§ 371(c)(1), (2) Date Feb. 15, 2022,
PCT Pub. No. WO2021/237984, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 202010446774.2 (CN), filed on May 25, 2020.
Prior Publication US 2022/0288695 A1, Sep. 15, 2022
Int. Cl. B22F 10/28 (2021.01); B22F 10/30 (2021.01); B22F 12/20 (2021.01); B22F 12/30 (2021.01); B22F 12/40 (2021.01); B22F 12/41 (2021.01); B22F 12/45 (2021.01); B22F 12/50 (2021.01); B22F 12/60 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B22F 10/28 (2021.01) [B22F 10/30 (2021.01); B22F 12/20 (2021.01); B22F 12/30 (2021.01); B22F 12/40 (2021.01); B22F 12/41 (2021.01); B22F 12/45 (2021.01); B22F 12/50 (2021.01); B22F 12/60 (2021.01); B22F 2998/10 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 7 Claims
OG exemplary drawing
 
1. A high-energy beam additive manufacturing forming method, applying a high-energy beam additive manufacturing forming device, wherein the high-energy beam additive manufacturing forming device comprises:
a magnetic field unit comprising:
a first magnetic field generating device,
wherein the first magnetic field generating device comprises induction coils arranged below a molten pool, and at any time, the molten pool formed by melting a material to be processed is located in an area where clustered magnetic induction lines are emitted from the induction coils;
when the number of the induction coils is multiple, the induction coils are evenly arranged in the forming area of the molten pool; and
the adjacent induction coils are parallel, and the distances between the induction coils and the molten pool are equal; and
second magnetic field generating devices which generate a steady-state magnetic field and/or an alternating magnetic field and act on the molten pool,
wherein the second magnetic field generating devices are arranged above the molten pool;
a forming base for placing a material to be processed, and
a high-energy beam generation device, which emits a high-energy beam, acts on the material to be processed and forms a molten pool,
wherein the high-energy beam generation device is arranged above the forming base, the first magnetic field generating device is detachably arranged below a surface of the forming base used for containing the material to be processed, and the second magnetic field generating devices are arranged above the forming base; and
the high-energy beam additive manufacturing forming method comprises the following steps:
(a) placing a material to be processed on the forming base;
(b) generating a high-energy beam by a high-energy beam generation device, wherein the high-energy beam acts on the material to be processed in a set path, so that a molten pool is formed by the material to be processed;
(c) loading alternating voltage by a first magnetic field generating device, so that the induction coils generate an alternating magnetic field to act on the molten pool; and
(d) stacking a plurality of additive forming layers to obtain a forming part.