Title:
METHOD FOR MANUFACTURING 3D PRINTED OBJECT
Document Type and Number:
WIPO Patent Application WO/2018/092841
Kind Code:
A1
Abstract:
The present invention pertains to a method for manufacturing a 3D printed object wherein a powder layer and a solidified layer are alternately and repeatedly laminated by the steps of: (i) forming a solidified layer by irradiating a predetermined site of a powder layer with a light beam to sinter or melt and solidify the powder at the predetermined site; and (ii) forming a new powder layer on the obtained solidified layer and irradiating a predetermined site of the new powder layer with the light beam to form an additional solidified layer. In the present invention, a main beam having an irradiation energy density that allows a predetermined site of a powder layer and a solidified layer below the predetermined site to be melted and a sub-beam having an irradiation energy density that allows only the predetermined site to be melted are used as the light beam, and the predetermined site is irradiated with the sub-beam prior to the main beam.
Inventors:
NAKAMURA AKIFUMI
YOSHIDA NORIO
NAKASHIMA NORIYASU
YOSHIDA NORIO
NAKASHIMA NORIYASU
Application Number:
PCT/JP2017/041254
Publication Date:
May 24, 2018
Filing Date:
November 16, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B22F3/105; B22F3/16
Domestic Patent References:
| WO2016026668A1 | 2016-02-25 |
Foreign References:
| JP2015193883A | 2015-11-05 | |||
| JP2010255057A | 2010-11-11 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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