EP 4072754 A1 20221019 - HATCH REVERSAL WITH KEYHOLE TRANSFER
Title (en)
HATCH REVERSAL WITH KEYHOLE TRANSFER
Title (de)
HATCHUMKEHR MIT KEYHOLE-ÜBERGABE
Title (fr)
INVERSION DE HACHURAGE À TRANSFERT DE CAPILLAIRE (KEYHOLE)
Publication
Application
Priority
- DE 102019219276 A 20191210
- EP 2020082781 W 20201119
Abstract (en)
[origin: WO2021115756A1] The invention relates to a method for providing control data for an additive manufacturing device (1) for manufacturing a three-dimensional object (2), said method comprising: a first step (S1) in which computer-based model data of at least one portion of the object to be manufactured is accessed; a second step (S2) in which at least one data model of a construction material layer region to be selectively solidified for manufacturing the at least one object portion is produced, the data model specifying the scanning of locations of the region to be selectively solidified, using at least one beam along a first trajectory (74a, 84) and a second trajectory (75, 85) substantially parallel thereto, the motion vectors of the beams in the construction plane having mutually opposite directional components during the scan along the two trajectories, and it being specified that the distance between a starting point (75A, 85A) of the second trajectory (75, 85) and an end point (74aE, 84E) of the previously scanned first trajectory (74a, 84) is less than half a beam width (B) of the beam at the end point (74aE, 84E) of the first trajectory (74a, 84); and a third step (S3) in which control data corresponding to the at least one data model produced in the second step (S2) is provided for the generation of a control data set for the additive manufacturing device.
IPC 8 full level
B22F 10/28 (2021.01); B22F 10/366 (2021.01); B22F 10/80 (2021.01); B29C 64/153 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01)
CPC (source: EP US)
B22F 10/28 (2021.01 - EP); B22F 10/366 (2021.01 - EP US); B22F 10/80 (2021.01 - EP); B29C 64/153 (2017.07 - EP US); B29C 64/393 (2017.07 - EP US); B33Y 10/00 (2014.12 - EP); B33Y 30/00 (2014.12 - EP); B33Y 50/00 (2014.12 - EP); B33Y 10/00 (2014.12 - US); B33Y 30/00 (2014.12 - US); B33Y 50/00 (2014.12 - US); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2021115756A1
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)
DE 102019219276 A1 20210610; EP 4072754 A1 20221019; US 2023008970 A1 20230112; WO 2021115756 A1 20210617
DOCDB simple family (application)
DE 102019219276 A 20191210; EP 2020082781 W 20201119; EP 20811561 A 20201119; US 202017783444 A 20201119