公开(公告)号：US20230347576A1

公开(公告)日：2023-11-02

申请号：US17569868

申请日：2020-07-17

Applicant: VITO NV

Inventor： Bart MICHIELSEN ,  Jasper LEFEVERE ,  Pieter WELTENS ,  Monika KUS ,  Marco Oskar KENNEMA ,  Detlef RUFF

IPC: B29C64/118 ,  B29C64/182

CPC classification number: B29C64/118 ,  B29C64/182 ,  B33Y10/00

Abstract: A method and system for printing a three-dimensional porous structure (1). Interconnected filaments (2) are deposited in a predetermined arrangement in a plurality of stacked layers (11). The filaments (2) of the consecutive layers (11) are connected to one another to obtain the porous structure (1) with interconnected pores (15). The filaments are deposited in such a way that one or more preselected frangible regions (7) are formed in the arrangement of filaments (2). The one or more frangible regions (7) are connected to less-frangible regions (9) of the porous structure (1). The predetermined arrangement of interconnected filaments (2) is configured such that the one or more frangible regions (7) form structurally weakened zones of the porous structure (1) such that the porous structure (1) breaks along said one or more frangible regions (7) under influence of a load and/or a stress. The plurality of three- dimensional parts (10a) are releasable under influence of the load and/or stress.