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Title:
MULTI-BEAM ADDITIVE MANUFACTURING APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/057724
Kind Code:
A1
Abstract:
A multi-beam additive manufacturing apparatus and method. Said apparatus comprises an additive manufacturing device and at least one laser beam generating and controlling module (1, 1', 1", 1"', 1"''), the laser beam generating and controlling modules (1, 1', 1", 1"', 1"'') being arranged opposite the additive manufacturing device; the additive manufacturing device comprises a forming platform (3) and a forming cylinder (8), and the forming cylinder (8) is connected to the forming platform (3); the laser beam generating and controlling modules (1, 1', 1", 1"', 1"'') each comprise a laser (9), a plurality of beam-expanding, aligning and scanning systems (10, 10', 10", 10"', 10"", 10""'), a plurality of focusing systems (11, 11', 11", 11"'), a plurality of light exit ports (13, 13', 13", 13"'), regular pyramid mirrors (12, 12', 12", 12"', 12"", 12""', 12""'') and a mounting platform (14); the bottom surfaces of the regular pyramid mirrors (12, 12', 12", 12"', 12"", 12""', 12""'') are provided on the mounting platform (14) and are provided opposite the laser (9); the laser (9) is provided above the regular pyramid mirrors (12, 12', 12", 12"', 12"", 12""', 12""''); the plurality of beam-expanding, aligning and scanning systems (10, 10', 10", 10"', 10"", 10""') are uniformly arranged around the center axis of the regular pyramid mirrors (12, 12', 12", 12"', 12"", 12""', 12""''); and the focusing systems (11, 11', 11", 11"') are located between the beam-expanding, aligning and scanning systems (10, 10', 10", 10"', 10"", 10""') and the light exit ports (13, 13', 13", 13"'), and the focusing systems (11, 11', 11", 11"') are located below the beam-expanding, aligning and scanning systems (10, 10', 10", 10"', 10"", 10""'). The present invention has advantageous effects of decreasing the cost, improving the efficiency, and having high applicability.

Inventors:
WANG ZEMIN (CN)
MENG LIANG (CN)
Application Number:
PCT/CN2020/116823
Publication Date:
April 01, 2021
Filing Date:
September 22, 2020
Export Citation:
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Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
B29C64/153; B22F3/105; B29C64/268
Domestic Patent References:
WO2015191257A12015-12-17
Foreign References:
CN110614766A2019-12-27
CN210969947U2020-07-10
CN109434107A2019-03-08
CN108500491A2018-09-07
CN109663915A2019-04-23
Attorney, Agent or Firm:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY PATENT AGENCY CENTER (CN)
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