公开(公告)号：US20240308132A1

公开(公告)日：2024-09-19

申请号：US18571219

申请日：2022-06-14

Applicant: FABULOUS

Inventor： Olivier COULET ,  Rita FETEIRA ESCUDEIRO ,  Arnault COULET

IPC: B29C64/153 ,  B29C64/255 ,  B29C64/357 ,  B29K77/00 ,  B29K105/00 ,  B29K105/16 ,  B29K105/26 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  C08K3/22

CPC classification number: B29C64/153 ,  B29C64/255 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  C08K3/22 ,  B29K2077/00 ,  B29K2105/0032 ,  B29K2105/0094 ,  B29K2105/16 ,  B29K2105/251 ,  B29K2105/26 ,  B29K2995/0094 ,  C08K2003/2227 ,  C08K2003/2289 ,  C08K2201/01

Abstract: The invention relates to a method for manufacturing a three-dimensional object, comprising locally raising the temperature of a powder using electromagnetic radiation in a heated chamber, causing the localised melting/coalescing of a layer of a predetermined thickness in order to form, after cooling, a solid polyamide layer, the method being characterised in that the powder comprises, relative to the total weight of the composition: —between 60% and 99% by weight of polyamide; —between 1% and 40% by weight of an optical and/or magnetic detection additive selected from the group formed by: pigments comprising a spinel structure containing a cation of a transition metal, the oxides of a transition metal, the sulphides of a transition metal; —between 0% and 5% by weight of a flow agent and in that the powder has: —a particle size distribution D50 of between 35 μm and 55 μm; and —a particle size distribution D10 of more than 15 μm; and—a particle size distribution D90 of less than 100 μm.