Title:
POWDER MATERIAL AND METHOD FOR MANUFACTURING COATED PARTICLES USED IN SAME, METHOD FOR MANUFACTURING THREE-DIMENSIONAL SHAPED OBJECT USING POWDER MATERIAL, AND THREE-DIMENSIONAL SHAPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/154917
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a powder material that can be adequately preheated and has high reusability. The powder material is used in a method for manufacturing a three-dimensional shaped object, the method including: repeatedly performing preheating of a powder material containing coated particles and selective laser light irradiation of a thin layer of the powder material; and laminating together a plurality of shaped object layers of which at least some of the coated particles are fused and coupled to each other. The coated particles include a core resin and a shell material which coats the core resin and which is made of an inorganic material. An average linear expansion coefficient of the core resin at 20 to 100°C is 5 to 240 with respect to an average linear expansion coefficient of the shell material at 20°C to 100°C. The shell material breaks in a range between the softening temperature of the core resin and the softening temperature + 50°C.
Inventors:
MIZOGUCHI KEISUKE
Application Number:
PCT/JP2017/044164
Publication Date:
August 30, 2018
Filing Date:
December 08, 2017
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B29C64/141; B33Y10/00; C08J3/12
Foreign References:
| JP2008260812A | 2008-10-30 | |||
| JP2013257404A | 2013-12-26 |
Attorney, Agent or Firm:
WASHIDA, Kimihito (JP)
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