Title:
METHOD FOR MANUFACTURING THREE-DIMENSIONAL STRUCTURE, AND FABRICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/176430
Kind Code:
A1
Abstract:
In manufacturing of a metal three-dimensional structure using an additive fabrication method, the present invention detects defects on or directly under a surface during the course of manufacturing. This method for manufacturing a metal three-dimensional structure includes: a layering step (S2) for layering material layers composed of a metal powder; an irradiation step (S5) for irradiating the surface of the layered material layers with inspection laser light when a prescribed number of the material layers have been layered, and generating vibration at irradiation points; a detection step (S6) for detecting the vibration; and a determination step (S8) for determining, on the basis of the strength of the detected vibration, whether defects are present in the material layers.
More Like This:
Inventors:
HAYASHI TAKAHIRO (JP)
Application Number:
PCT/JP2022/000452
Publication Date:
August 25, 2022
Filing Date:
January 11, 2022
Export Citation:
Assignee:
UNIV OSAKA (JP)
International Classes:
B22F10/28; B23K26/02; B22F10/80; B22F10/85; B22F12/90; B23K26/21; B23K26/34; B28B1/30; B29C64/153; B29C64/273; B29C64/277; B29C64/393; B33Y10/00; B33Y30/00; B33Y50/02
Foreign References:
| JP2020530070A | 2020-10-15 | |||
| JP2020533481A | 2020-11-19 | |||
| JP2016060063A | 2016-04-25 | |||
| JP2018523011A | 2018-08-16 | |||
| JP2017094728A | 2017-06-01 | |||
| US20170059529A1 | 2017-03-02 | |||
| CN110465661A | 2019-11-19 | |||
| CN111687413A | 2020-09-22 | |||
| JP2021143972A | 2021-09-24 | |||
| CN112404457A | 2021-02-26 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
Download PDF: