Title:
METHOD FOR MANUFACTURING ADDITIVELY MANUFACTURED ARTICLE, AND ADDITIVELY MANUFACTURED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/182050
Kind Code:
A1
Abstract:
A method for manufacturing an additively manufactured article, the method comprising subjecting a powder material comprising a first powder containing a precipitation hardening stainless steel and a second powder containing titanium carbide to weaving irradiation with a laser beam to melt and solidify the powder material, thereby laminating at least one hardened clad layer on a base material. In the step for laminating the clad layer, the following requirements are satisfied: 20 ≤ A ≤ 35, 1.1 ≤ B ≤ 1.3, and (40% by mass) ≤ R2 ≤ (65% by mass). In the formulae, A represents a laser heat input index, B represents a powder feeding rate index, and R2 represents a content ratio of the second powder in the power material.
More Like This:
Inventors:
KUROSAWA EISUKE
Application Number:
PCT/JP2021/006010
Publication Date:
September 16, 2021
Filing Date:
February 17, 2021
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B22F7/08; B22F3/105; B22F3/16; B23K26/21; B23K26/34; B23K26/342; B23K35/30; B33Y10/00; B33Y80/00; C22C29/06; C22C33/02
Domestic Patent References:
| WO2016075801A1 | 2016-05-19 |
Foreign References:
| JP2017114716A | 2017-06-29 | |||
| JP2007524520A | 2007-08-30 | |||
| JP2018171644A | 2018-11-08 | |||
| JP2013501630A | 2013-01-17 | |||
| JP2020043356A | 2020-03-19 |
Other References:
See also references of EP 4104953A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF: