Title:
ADDITIVE MANUFACTURING DEVICE AND ADDITIVE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/062699
Kind Code:
A1
Abstract:
In this additive manufacturing device (1), a control unit (5) controls a material holder (3) and an optical head (2) on the basis of design data pertaining to an additively manufactured object to thereby repeatedly carry out a process for supplying an additive manufacturing material (91) onto a stage (341), scanning a multi-spot beam in a prescribed scanning direction on a layer (92) on which drawing is to be performed, the layer (92) being the surface layer of the supplied additive manufacturing material (91), and then melting the additive manufacturing material (91) in a region irradiated with light and drawing a pattern. Non-drawing regions, with respect to which drawing is not indicated in the design data, include a narrow non-drawing region in which the scan-direction size is equal to or less than a correction threshold value. The control performed by the control unit suppresses irradiation with light on a narrow-part-adjacent region, which is a portion within a drawing region that is adjacent to a narrow non-drawing region, drawing being indicated in the design data with respect to the drawing region. This makes it possible to precisely form an additively manufactured object.
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Inventors:
HISHITANI DAISUKE (JP)
Application Number:
PCT/JP2023/021537
Publication Date:
March 28, 2024
Filing Date:
June 09, 2023
Export Citation:
Assignee:
SCREEN HOLDINGS CO LTD (JP)
International Classes:
B33Y10/00; B22F10/28; B22F10/366; B22F12/90; B29C64/153; B29C64/264; B29C64/386; B33Y30/00; B33Y50/02
Domestic Patent References:
| WO2016017155A1 | 2016-02-04 |
Foreign References:
| JP2019059993A | 2019-04-18 | |||
| US20200039145A1 | 2020-02-06 |
Attorney, Agent or Firm:
MATSUSAKA, Masahiro et al. (JP)
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