公开(公告)号：US20230347595A1

公开(公告)日：2023-11-02

申请号：US17569933

申请日：2020-07-17

Applicant: VITO NV

Inventor： Bart MICHIELSEN ,  Jasper LEFEVERE ,  Wim BOUWEN ,  Steven MULLENS ,  Marijn GYSEN ,  Erwin VAN HOOF

IPC: B29C64/393 ,  B29C64/255 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/118 ,  B33Y30/00

CPC classification number: B29C64/393 ,  B29C64/118 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K2105/04

Abstract: A method and system for manufacturing a three-dimensional porous structure. Filaments are deposited in a predetermined interconnected arrangement in a plurality of stacked layers for forming a porous structure with interconnected pores. A pressure value indicative of a pressure being applied on the build material in the build material reservoir of a nozzle used for deposition is monitored during deposition of the filaments. The processing unit is configured to adjust at least one extrusion parameter in order to compensate for the irregular rising and/or falling of the pressure value.

公开(公告)号：US20230347577A1

公开(公告)日：2023-11-02

申请号：US17570030

申请日：2020-07-17

Applicant: VITO NV

Inventor： Jasper LEFEVERE ,  Bart MICHIELSEN ,  Wim BOUWEN ,  Steven MULLENS ,  Marijn GYSEN

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/182 ,  B29C64/241 ,  B29C64/245

CPC classification number: B29C64/118 ,  B29C64/209 ,  B29C64/182 ,  B29C64/241 ,  B29C64/245 ,  B33Y10/00

Abstract: A method and system for manufacturing one or more three-dimensional porous structures (10). Filaments (2) are deposited on a support in a predetermined interconnected arrangement in a plurality of stacked layers (11) for forming one or more porous structure with interconnected pores (15). A nozzle head (30) with a plurality of nozzles (20) is used for depositing filaments. The plurality of nozzles are spaced apart from each other with a predetermined spacing therebetween. Each nozzle has an opening area through which filaments are dispensed as the nozzle head is moved relative to the support. Multiple 3D porous structures are manufactured in parallel, using a subset of nozzles for each porous structure, each subset of nozzles including at least one nozzle. Neighboring subsets of nozzles are distanced in order to provide a working area on which the relevant porous structure of the plurality of porous structures is manufactured.

公开(公告)号：US20220266337A1

公开(公告)日：2022-08-25

申请号：US17624926

申请日：2020-07-20

Applicant: VITO NV

Inventor： Steven MULLENS ,  Ivo THIJS ,  Bart MICHIELSEN ,  Marleen ROMBOUTS ,  Jo VERWIMP ,  Marijn GYSEN ,  Jasper LEFEVERE

IPC: B22F10/18 ,  B22F1/107 ,  B22F12/53 ,  B33Y10/00 ,  B33Y70/00 ,  C04B35/111 ,  C04B35/622 ,  B33Y50/02

Abstract: An additive manufacturing paste composition for manufacturing a three-dimensional shaped article of a material of interest, said paste composition including 70-99.8 wt. % with respect to the weight of the composition of particles of the material of interest, the material of interest being one or more compounds selected from the group of metals and metal alloys and mixtures thereof, at least one binder component, at least one additive component, which is a lubricant, one or more solvents which are miscible with each other, wherein the sum of the concentration of the at least one additive component and the at least one binder is between 0.06 wt. % and 10.0 wt. %, with respect to the weight of the paste composition, and wherein at least one of the additive component and the binder component or the mixture thereof are shear-thinning.