Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTRON BEAM COLUMN FOR THREE-DIMENSIONAL PRINTING DEVICE, THREE-DIMENSIONAL PRINTING DEVICE, AND THREE-DIMENSIONAL PRINTING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/131109
Kind Code:
A1
Abstract:
[Problem] To provide a three-dimensional printing device wherein a plurality of electron beams having different beam shapes simultaneously irradiate approximately the same range of the surface of a powder layer. [Solution] The electron beam column 200 of this three-dimensional printing device 100 is equipped with: a plurality of electron sources 20, each containing an electron source having an anisotropic beam generating unit; and beam shape transforming elements 30, each for transforming the beam shape, at a surface 63 of a powder layer 62, of an electron beam emitted from each of the electron sources 20. The electron beam column 200 is equipped with a deflector 50 with which electron beams emitted from each of the plurality of electron sources 20 are deflected by a distance larger than the beam spacing between the electron beams before passage through the deflector 50. In this manner, the three-dimensional printing device 100 equipped with the electron beam column 200 simultaneously irradiates approximately the same range of the surface 63 of the powder layer 62 with the plurality of electron beams having different beam shapes while forming a three dimensional structure 66 by the powder layer 62 being melted and solidifying.

More Like This:
JPS63318057POLYMER BEAM GENERATOR
JPS5820097[Title of the Invention] An electron gun for electron beam recording
JPH0743680[Name of invention] Electron beam irradiation device
Inventors:
HAMAGUCHI SHINICHI (JP)
SUGATANI SHINJI (JP)
TAKAHASHI MASAYUKI (JP)
TAKIZAWA MASAHIRO (JP)
Application Number:
PCT/JP2017/000770
Publication Date:
July 19, 2018
Filing Date:
January 12, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ADVANTEST CORP (JP)
International Classes:
H01J37/30; B22F3/105; B22F3/16; H01J37/06; H01J37/12; H01J37/147; H01J37/305; B33Y10/00; B33Y30/00
Domestic Patent References:
WO2007086400A12007-08-02
Foreign References:
JP2016529389A2016-09-23
JP2015193883A2015-11-05
JPS58193541U1983-12-23
JPS6264036A1987-03-20
JPS62194614A1987-08-27
JPS62213051A1987-09-18
JP2015170571A2015-09-28
JP2008155538A2008-07-10
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: WORK MACHINE AND PICK-UP POSITION SELECTION METHOD

Next Patent: POWER AMPLIFIER