EP 3898179 A1 20211027 - IDENTIFICATION OF OBJECTS PRODUCED BY A 3D PRINTING METHOD
Title (en)
IDENTIFICATION OF OBJECTS PRODUCED BY A 3D PRINTING METHOD
Title (de)
IDENTIFIZIERUNG VON IM 3D-DRUCKVERFAHREN ERZEUGTEN OBJEKTEN
Title (fr)
IDENTIFICATION D'OBJETS PRODUITS AU COURS D'UN PROCÉDÉ D'IMPRESSION 3D
Publication
Application
Priority
- DE 102018133560 A 20181221
- EP 2019086441 W 20191219
Abstract (en)
[origin: WO2020127822A1] The invention relates to a 3D printing method, in which a material is applied one layer at a time and a three-dimensional workpiece (1) is thus produced. The invention also relates to a method for identifying a workpiece (1) produced by a 3D printing method. The invention addresses the problem of providing a method for secure coding and subsequent identification of a workpiece produced by 3D printing. To this end, the invention proposes that a material parameter is varied during or after the application of the material, such that the variation of the material parameter forms a pattern (2) in the produced workpiece (1), and furthermore that a pattern (2) which is produced in the workpiece (1) by a spatial variation of a material parameter and which forms a coding is detected by means of a spatially resolving process using electromagnetic radiation, and the identity of the workpiece (1) is deduced therefrom.
IPC 8 full level
B29C 64/10 (2017.01); B33Y 10/00 (2015.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01); G06K 1/00 (2006.01)
CPC (source: EP)
B29C 64/10 (2017.07); B33Y 10/00 (2014.12); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12)
Citation (search report)
See references of WO 2020127822A1
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)
DOCDB simple family (application)
EP 2019086441 W 20191219; EP 19835393 A 20191219