EP 3826824 A1 20210602 - ADDITIVE PRODUCTION DEVICE AND ASSOCIATED ADDITIVE PRODUCTION METHOD
Title (en)
ADDITIVE PRODUCTION DEVICE AND ASSOCIATED ADDITIVE PRODUCTION METHOD
Title (de)
ADDITIVE HERSTELLVORRICHTUNG UND ZUGEORDNETES ADDITIVES HERSTELLVERFAHREN
Title (fr)
DISPOSITIF DE FABRICATION ADDITIVE ET PROCÉDÉ DE FABRICATION ADDITIVE ASSOCIÉ
Publication
Application
Priority
- DE 102018213675 A 20180814
- EP 2019071731 W 20190813
Abstract (en)
[origin: WO2020035496A1] The invention relates to an additive production device for producing a three-dimensional object, comprising a layer application device (16) for applying a building material layer to layer, an energy input device (20) which comprises a carbon monoxide laser (21) and a radiation supply device for supplying laser radiation of the carbon monoxide laser to points in each layer which are associated with the cross-section of the object in said layer, and a laser power modification device (27) which, in the event of an increase in laser power, is suitable to cause an increase in the power impinging on the building material per unit of area within a period of time, which is less than 300 μs and/or greater than 50 ns, and/or, in the event of a reduction in laser power, to cause a drop in the power impinging on the building material per unit of area within a period of time, which is less than 100 μs and/or greater than 100 ns.
IPC 8 full level
B29C 64/153 (2017.01); B29C 64/268 (2017.01); B29C 64/273 (2017.01)
CPC (source: EP US)
B28B 1/001 (2013.01 - US); B29C 64/153 (2017.07 - EP US); B29C 64/268 (2017.07 - EP); B29C 64/273 (2017.07 - EP US); B29C 64/286 (2017.07 - US); B33Y 10/00 (2014.12 - US); B33Y 30/00 (2014.12 - US); B33Y 70/00 (2014.12 - US); B29C 64/268 (2017.07 - US); B29K 2023/12 (2013.01 - US); B29K 2025/06 (2013.01 - US); B29K 2055/02 (2013.01 - US); B29K 2069/00 (2013.01 - US); B29K 2075/00 (2013.01 - US); B29K 2077/00 (2013.01 - US); B29K 2079/085 (2013.01 - US); B33Y 30/00 (2014.12 - EP); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2020035496A1
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
DOCDB simple family (publication)
WO 2020035496 A1 20200220; CN 112703102 A 20210423; CN 112703102 B 20230922; DE 102018213675 A1 20200220; EP 3826824 A1 20210602; US 2021308940 A1 20211007
DOCDB simple family (application)
EP 2019071731 W 20190813; CN 201980060199 A 20190813; DE 102018213675 A 20180814; EP 19755339 A 20190813; US 201917267633 A 20190813