EP 4076795 A1 20221026 - MACHINE FOR ADDITIVE MANUFACTURING BY POWDER BED DEPOSITION WITH A CENTRAL GAS SUCTION OR GAS BLOWING MANIFOLD
Title (en)
MACHINE FOR ADDITIVE MANUFACTURING BY POWDER BED DEPOSITION WITH A CENTRAL GAS SUCTION OR GAS BLOWING MANIFOLD
Title (de)
MASCHINE ZUR ADDITIVEN HERSTELLUNG DURCH PULVERBETTABSCHEIDUNG MIT EINEM ZENTRALEN GASABSAUG- ODER GASBLASVERTEILER
Title (fr)
MACHINE DE FABRICATION ADDITIVE PAR DEPOT DE LIT DE POUDRE AVEC UNE RAMPE CENTRALE D'ASPIRATION DE GAZ OU DE SOUFFLAGE DE GAZ
Publication
Application
Priority
- FR 1914952 A 20191219
- FR 2020052452 W 20201215
Abstract (en)
[origin: WO2021123608A1] The invention relates to a machine (10) for additive manufacturing by powder bed deposition, the machine comprising a working surface (12) on which at least one layer of additive manufacturing powder (14) is deposited, the machine comprising a device (16) for selective consolidation by complete or partial melting of a layer of powder deposited on the working surface, and the machine comprising a device (18) for extracting the fumes created by the selective consolidation of a powder layer, wherein the selective consolidation device emits at least two beams (F1, F2) of energy or heat in the direction of the working surface, the working surface is divided into at least two adjoining work areas (Z1, Z2), and a first beam (F1) consolidates the powder in a first work area (Z1) and a second beam (F2) consolidates the powder in a second work area (Z2). The fume extraction device (18) comprises at least one central gas suction and/or gas blowing manifold (40) mounted so as to be translatably movable above an overlapping area (ZR) in which the different adjoining work areas overlap, and two lateral gas suction and/or gas blowing manifolds (42, 44) fixedly attached and arranged on either side of the working surface. The central manifold (40) extends at least over a maximum area of the working surface (12) in a transverse direction (DT) and moves translationally in a longitudinal direction (DL) perpendicular to the transverse direction, wherein the longitudinal and transverse directions are parallel to the plane (P12) of the working surface and the powder surface.
IPC 8 full level
B22F 3/105 (2006.01); B29C 64/153 (2017.01); B29C 64/236 (2017.01); B29C 64/268 (2017.01); B29C 64/277 (2017.01); B29C 64/35 (2017.01); B33Y 30/00 (2015.01)
CPC (source: EP US)
B22F 10/00 (2021.01 - EP); B22F 10/25 (2021.01 - US); B22F 12/222 (2021.01 - US); B22F 12/224 (2021.01 - US); B22F 12/30 (2021.01 - US); B22F 12/45 (2021.01 - US); B29C 64/153 (2017.07 - EP US); B29C 64/232 (2017.07 - US); B29C 64/236 (2017.07 - EP US); B29C 64/245 (2017.07 - US); B29C 64/268 (2017.07 - EP); B29C 64/277 (2017.07 - EP); B29C 64/282 (2017.07 - US); B33Y 10/00 (2014.12 - EP); B33Y 30/00 (2014.12 - EP US); B29C 64/35 (2017.07 - EP); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2021123608A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3105067 A1 20210625; FR 3105067 B1 20220506; EP 4076795 A1 20221026; US 2023043535 A1 20230209; WO 2021123608 A1 20210624
DOCDB simple family (application)
FR 1914952 A 20191219; EP 20845582 A 20201215; FR 2020052452 W 20201215; US 202017786801 A 20201215