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1. US20220203281 - METHOD FOR MANUFACTURING A METALLIC FUNCTIONAL PART DELIMITING A POROUS FILTERING MEDIUM, USING AN ADDITIVE MANUFACTURING METHOD, AND OBTAINED FUNCTIONAL PART

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United States of America
Application Number 17566078
Application Date 30.12.2021
Publication Number 20220203281
Publication Date 30.06.2022
Publication Kind A1
IPC
B01D 46/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 39/20
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
14Other self-supporting filtering material
20of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
B01D 46/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
10Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces
B33Y 80/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
80Products made by additive manufacturing
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
A41D 13/11
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
13Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
05protecting only a particular body part
11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
CPC
B01D 2275/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2275Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
30Porosity of filtering material
B01D 46/0001
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters ; , i.e. particle separators; or filtering processes specially modified for separating dispersed particles from gases or vapours
0001Making filtering elements
B01D 46/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters ; , i.e. particle separators; or filtering processes specially modified for separating dispersed particles from gases or vapours
10Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces ; , i.e. axial filtering
B33Y 80/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
80Products made by additive manufacturing
B33Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
10Processes of additive manufacturing
A41D 13/11
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
13Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
05protecting only a particular body part
11Protective face masks, e.g. for surgical use, or for use in foul atmospheres
Applicants COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors Hicham MASKROT
Olivier HERCHER
Frédéric SCHUSTER
Priority Data 2014263 30.12.2020 FR
Title
(EN) METHOD FOR MANUFACTURING A METALLIC FUNCTIONAL PART DELIMITING A POROUS FILTERING MEDIUM, USING AN ADDITIVE MANUFACTURING METHOD, AND OBTAINED FUNCTIONAL PART
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Abstract
(EN)

A manufacturing method enabling the obtainment of a functional part essentially formed in a metallic material, all or part of the functional part delimiting a filtering medium permeable to a fluid and delimiting first and second main faces for a preferred circulation of the gas through the filtering medium. The method includes a main phase consisting of an additive manufacturing method in successive passes from a support tray. Each pass includes the deposition of at least one layer of the metallic material, the deposited material adhering to the metallic material deposited before. The deposition is controlled at each pass so the stack of metallic material constitutes the functional part. The filtering medium includes a coalescent network of connecting strands interconnected according to a three-dimensional spatial distribution between the faces, the connecting strands of the network delimiting therebetween pores spatially distributed within the filtering medium in three dimensions between the faces.
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