EP 4200123 A1 20230628 - METHOD AND APPARATUS FOR THE ADDITIVE MANUFACTURING OF A WORKPIECE
Title (en)
METHOD AND APPARATUS FOR THE ADDITIVE MANUFACTURING OF A WORKPIECE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ADDITIVEN HERSTELLUNG EINES WERKSTÜCKS
Title (fr)
PROCÉDÉ ET APPAREIL DE FABRICATION ADDITIVE D'UNE PIÈCE À TRAVAILLER
Publication
Application
Priority
- DE 102020121760 A 20200819
- DE 102020126571 A 20201009
- DE 102021102125 A 20210129
- EP 2021070751 W 20210723
Abstract (en)
[origin: WO2022037899A1] The invention relates to a method for the additive production of a workpiece (14), wherein a material layer (18) having a defined surface is formed from a particulate material (20). At least one image of the material layer (18) is recorded by a camera (40) in order to determine individual properties (110) of the material layer (18). According to the individual properties of the material layer (18), the particulate material (20) is selectively solidified using a structuring tool (28). The at least one image of the material layer (18) is inspected using a previously trained statistical learning model (112). At least one defect vector (100) is determined which represents a plurality of individual defect probabilities (102a, 102b). Each individual defect probability of the plurality of individual defect probabilities (102a, 102b) is an individual indicator for whether a defined layer defect of a plurality of possible layer defects is present in the material layer (18).
IPC 8 full level
B29C 64/393 (2017.01); B22F 10/30 (2021.01); B29C 64/153 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); G05B 23/02 (2006.01); G06N 20/00 (2019.01)
CPC (source: EP US)
B22F 10/28 (2021.01 - EP US); B22F 10/38 (2021.01 - EP US); B22F 10/85 (2021.01 - EP US); B22F 12/90 (2021.01 - EP US); B29C 64/153 (2017.07 - EP); B29C 64/393 (2017.07 - EP); B33Y 10/00 (2014.12 - EP); B33Y 30/00 (2014.12 - EP); B33Y 50/02 (2014.12 - EP); G05B 23/0243 (2013.01 - EP); G06N 3/044 (2023.01 - EP); G06N 3/045 (2023.01 - EP); B33Y 10/00 (2014.12 - US); B33Y 50/02 (2014.12 - US); G06N 3/084 (2013.01 - EP); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2022037899A1
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)
WO 2022037899 A1 20220224; CN 115867403 A 20230328; EP 4200123 A1 20230628; US 2023294173 A1 20230921
DOCDB simple family (application)
EP 2021070751 W 20210723; CN 202180050499 A 20210723; EP 21746757 A 20210723; US 202318171201 A 20230217