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Patent Searching and Data


Title:
THREE-DIMENSIONAL SHAPING METHOD AND THREE-DIMENSIONAL SHAPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/079553
Kind Code:
A1
Abstract:
[Problem] To provide a configuration capable of performing efficient and uniform three-dimensional shaping using two-dimensional scanning, in which all laser beams that are scanned upon being transmitted through a plurality of galvanoscanners contribute to formation of a sintered surface. [Solution] The above problem is solved by a three-dimensional shaping method and device that utilize a plurality of galvanoscanners 3 that realize scanning of laser beams 7 along a two-dimensional direction of orthogonal coordinates or cylindrical coordinates by reflection from a first mirror 31, which vibrates via a rotation shaft 30 that is orthogonal to a transmission direction of the laser beams 7 transmitted through a dynamic focus lens 2, and from a second mirror 32, which vibrates via a horizontal rotation shaft 30 that is orthogonal to the rotation shaft 30 of the first mirror 31. The range of the vibration is made freely adjustable on the basis of control of the vibration, and then a region on a sintered surface 6 of a focus point or a nearby position thereof of the laser beams 7 that are irradiated from a direction inclined with respect to the surface of a table 4 is made freely selectable.

Inventors:
AMAYA KOICHI (JP)
YOSHIDA MITSUYOSHI (JP)
TOMITA SEIICHI (JP)
SASAKI SHOTA (JP)
Application Number:
PCT/JP2020/022518
Publication Date:
April 29, 2021
Filing Date:
June 08, 2020
Export Citation:
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Assignee:
TECH RES ASSOCIATION FUTURE ADDITIVE MANUFACTURING (JP)
International Classes:
B22F3/105; B22F3/16; B29C64/153; B29C64/268; B29C64/277; B33Y10/00; B33Y30/00
Foreign References:
JP2009006509A2009-01-15
JP2014136329A2014-07-28
JP2003127238A2003-05-08
JPH06192702A1994-07-12
US20130270750A12013-10-17
Attorney, Agent or Firm:
AKAO Naoto (JP)
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