Title:
METHOD FOR MEASURING DEFORMATION AMOUNT OF DEFORMATION PART OF ADDITIVELY FABRICATED TEST OBJECT AND METHOD FOR DETERMINING PROPER CONDITIONS FOR ADDITIVE FABRICATION
Document Type and Number:
WIPO Patent Application WO/2023/068268
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for measuring a deformation amount of a deformation part of an additively fabricated test object, by which deformation of the additively fabricated test body due to a residual stress can be accurately evaluated in a state where the test body is separated from a base plate. The method for measuring a deformation amount of a deformation part of an additively fabricated test object is characterized by comprising: a fabrication process in which an additively fabricated test body comprising a reference part, a deformation part, and a connection part integrating said parts, which are arranged in a planar direction of an upper surface of a base plate, is fabricated by carrying out additive fabrication using a metal powder under predetermined conditions such that the reference part, the deformation part, and the connection part are joined to the upper surface of the base plate; a separation process in which the additively fabricated test body is separated from the upper surface of the base plate; and a measurement process in which a deformation amount of the deformation part with reference to the reference part is measured for the additively fabricated test body separated from the upper surface of the base plate.
Inventors:
OSMA STEVEN JAMES (JP)
KAWANAKA HIROTSUGU (JP)
MATSUSHITA SHINJI (JP)
PARK MINSEOK (JP)
YASUDA YUSUKE (JP)
KAWANAKA HIROTSUGU (JP)
MATSUSHITA SHINJI (JP)
PARK MINSEOK (JP)
YASUDA YUSUKE (JP)
Application Number:
PCT/JP2022/038762
Publication Date:
April 27, 2023
Filing Date:
October 18, 2022
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
B22F10/80; B22F10/16; B22F10/25; B22F10/28; B22F10/31; B22F10/60; B22F10/66; B22F10/85; B33Y10/00; B33Y50/02
Domestic Patent References:
| WO2020176283A1 | 2020-09-03 | |||
| WO2020191263A1 | 2020-09-24 |
Foreign References:
| EP3587005A1 | 2020-01-01 | |||
| JP2021016885A | 2021-02-15 | |||
| US20190377843A1 | 2019-12-12 | |||
| JP2021171182A | 2021-11-01 |
Other References:
GIBSON, I. ET AL.: "Additive manufacturing technologies", 2014, SPRINGER
CRUISE, R. ET AL.: "Residual stress analysis of structural stainless steel sections", JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, vol. 64, 2008, pages 3, XP022482887, DOI: 10.1016/j.jcsr.2007.08.001
LI, C. ET AL.: "Efficient multiscale prediction of cantilever distortion by selective laser melting", PROC. 27TH ANNU. INT. SOLID FREE. FABR. SYMP, 2016
CRUISE, R. ET AL.: "Residual stress analysis of structural stainless steel sections", JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, vol. 64, 2008, pages 3, XP022482887, DOI: 10.1016/j.jcsr.2007.08.001
LI, C. ET AL.: "Efficient multiscale prediction of cantilever distortion by selective laser melting", PROC. 27TH ANNU. INT. SOLID FREE. FABR. SYMP, 2016
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
Download PDF: