EP 3837070 A1 20210623 - 3D-METAL-PRINTING METHOD AND ARRANGEMENT THEREFOR
Title (en)
3D-METAL-PRINTING METHOD AND ARRANGEMENT THEREFOR
Title (de)
3D-METALLDRUCKVERFAHREN UND ANORDNUNG FÜR EIN SOLCHES
Title (fr)
PROCÉDÉ D'IMPRESSION DE MÉTAL 3D ET DISPOSITIF ASSOCIÉ
Publication
Application
Priority
- DE 102018120015 A 20180816
- DE 2019100723 W 20190809
Abstract (en)
[origin: WO2020035109A1] The invention relates to a 3D-metal-printing method for producing a spatial metal product substantially consisting of a metal powder or metal filaments as the starting material, the powder or the filaments being structured layer-by-layer by applying starting material layers to a respectively previously produced layer and selective local heating of predefined points of the layer above a sintering or melting temperature of the powder and sintering or fusing the molten points with the underlying layer and optional tempering of the points, wherein at least the respectively newly applied starting material layer is formed by planar irradiating IR radiation in such a manner that a radiation spot having a surface area of at least 5mm2, more specifically of more than 20mm2 and even more specifically of more than 100mm2, is pre-heated and/or, following the local heating of the predetermined points, is post-treated for thermal stress compensation.
IPC 8 full level
B22F 3/105 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01)
CPC (source: EP US)
B22F 10/28 (2021.01 - EP US); B22F 10/64 (2021.01 - EP US); B22F 12/13 (2021.01 - EP US); B22F 12/41 (2021.01 - US); B23K 15/002 (2013.01 - US); B23K 15/0086 (2013.01 - US); B33Y 10/00 (2014.12 - EP US); B33Y 30/00 (2014.12 - EP US); B33Y 40/00 (2014.12 - EP); B33Y 40/20 (2020.01 - US); G02B 19/0019 (2013.01 - US); G02B 19/009 (2013.01 - US); H05B 3/0061 (2013.01 - US); H05B 3/42 (2013.01 - US); B22F 10/73 (2021.01 - EP US); B22F 12/50 (2021.01 - EP US); B22F 12/67 (2021.01 - EP US); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2020035109A1
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 2020035109 A1 20200220; CN 112839758 A 20210525; DE 102018120015 A1 20200220; EP 3837070 A1 20210623; JP 2021535963 A 20211223; JP 7170142 B2 20221111; US 2021178487 A1 20210617
DOCDB simple family (application)
DE 2019100723 W 20190809; CN 201980067339 A 20190809; DE 102018120015 A 20180816; EP 19762302 A 20190809; JP 2021532512 A 20190809; US 201917268794 A 20190809