Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR MANUFACTURING SINTERED PRODUCT FROM THREE-DIMENSIONAL ADDITIVELY-MANUFACTURED ARTICLE, AND INKJET INK FOR 3D ADDITIVE MANUFACTURING USE
Document Type and Number:
WIPO Patent Application WO/2021/206029
Kind Code:
A1
Abstract:
The problem is to manufacture a sintered product from a three-dimensional additively-manufactured article appropriately. As a solution, a method for manufacturing a sintered product from a three-dimensional additively-manufactured article comprises a preparation step S11, a defatting step S12, and a sintering step S13. In the preparation step S11, an ink comprising inorganic particles and an organic material is built up to prepare a three-dimensional additively-manufactured article. The defatting step S12 includes: a first defatting step for heating the three-dimensional additively-manufactured article in an inert gas atmosphere at a first average defatting temperature for a first heating time to defat the organic material; and a second defatting step for heating the three-dimensional additively-manufactured article which has been defatted in the first defatting step in an inert gas atmosphere at a second average defatting temperature that is higher than the first average defatting temperature for a second heating time to defat the organic material. In the sintering step S13, the three-dimensional additively-manufactured article that has been defatted in the second defatting step is sintered at an average sintering temperature that is higher than the second average defatting temperature to produce a sintered product.

Inventors:
TATEISHI KENJI (JP)
OBATA SEIZO (JP)
KOBAYASHI YUKIKO (JP)
OHARA KAZUKI (JP)
Application Number:
PCT/JP2021/014398
Publication Date:
October 14, 2021
Filing Date:
April 02, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
GIFU PREFECTURE (JP)
MIMAKI ENG CO LTD (JP)
International Classes:
C04B35/638; B22F3/10; B22F3/16; B29C64/165; B29C64/209; B29C64/30; B33Y10/00; B33Y70/10; C04B35/634; C04B35/64
Attorney, Agent or Firm:
TAKEHARA Naohiko et al. (JP)
Download PDF: