EP 4171851 A1 20230503 - DEVICE AND METHOD FOR ADDITIVE MANUFACTURING UNDER PROTECTIVE GAS
Title (en)
DEVICE AND METHOD FOR ADDITIVE MANUFACTURING UNDER PROTECTIVE GAS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR ADDITIVEN FERTIGUNG UNTER SCHUTZGAS
Title (fr)
DISPOSITIF ET PROCÉDÉ DE FABRICATION ADDITIVE SOUS GAZ PROTECTEUR
Publication
Application
Priority
- DE 102020003888 A 20200629
- EP 2021064850 W 20210602
Abstract (en)
[origin: CA3184100A1] The invention relates to a device for the additive manufacturing of workpieces under protective gas, which device is provided with a manufacturing chamber designed as a pressure chamber, said manufacturing chamber being fluidically connected to a pressure container via a gas extraction line, which is provided with a vacuum pump, and via a gas return line. After the manufacturing of a first workpiece, the protective gas present in the manufacturing chamber is evacuated, temporarily stored in the pressure container and, prior to the manufacturing of a second workpiece, is introduced into the manufacturing chamber.
IPC 8 full level
B22F 10/20 (2021.01); B22F 10/28 (2021.01); B22F 10/30 (2021.01); B22F 10/32 (2021.01); B22F 10/77 (2021.01); B22F 12/00 (2021.01); B29C 64/153 (2017.01); B29C 64/371 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC (source: EP US)
B22F 10/20 (2021.01 - EP); B22F 10/28 (2021.01 - EP); B22F 10/32 (2021.01 - EP); B22F 10/77 (2021.01 - EP); B22F 12/70 (2021.01 - EP US); B29C 64/153 (2017.07 - EP); B29C 64/371 (2017.07 - EP US); B33Y 10/00 (2014.12 - EP); B33Y 30/00 (2014.12 - EP US); B22F 10/28 (2021.01 - US); B22F 2999/00 (2013.01 - EP); B29C 64/153 (2017.07 - US); B33Y 10/00 (2014.12 - US); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2022002523A1
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)
DE 102020003888 A1 20211230; BR 112022026714 A2 20230117; CA 3184100 A1 20220106; EP 4171851 A1 20230503; US 2023241686 A1 20230803; WO 2022002523 A1 20220106
DOCDB simple family (application)
DE 102020003888 A 20200629; BR 112022026714 A 20210602; CA 3184100 A 20210602; EP 2021064850 W 20210602; EP 21730571 A 20210602; US 202118002317 A 20210602