EP 4018018 A1 20220629 - MATRIX-CONTROLLED PRINTHEAD FOR AN ELECTROCHEMICAL ADDITIVE MANUFACTURING SYSTEM
Title (en)
MATRIX-CONTROLLED PRINTHEAD FOR AN ELECTROCHEMICAL ADDITIVE MANUFACTURING SYSTEM
Title (de)
MATRIXGESTEUERTER DRUCKKOPF FÜR EIN ELEKTROCHEMISCHES GENERATIVES FERTIGUNGSSYSTEM
Title (fr)
TÊTE D'IMPRESSION À COMMANDE MATRICIELLE POUR SYSTÈME DE FABRICATION ADDITIVE ÉLECTROCHIMIQUE
Publication
Application
Priority
- US 201962890815 P 20190823
- US 202016795495 A 20200219
- US 202062983274 P 20200228
- US 202016926598 A 20200710
- US 202016941372 A 20200728
- US 2020047531 W 20200821
Abstract (en)
[origin: WO2021041265A1] Printhead for a 3D manufacturing system that uses metal electrodeposition to construct parts; embodiments utilize a grid of anodes to achieve high quality parts with features that may be small and detailed. To support grids with thousands or millions of anodes, the printhead may use matrix control with row and column drivers similar to display backplanes. Unlike display backplanes where the design goal is to display images using minimal current, the printhead may be optimized for high current density for fast electrodeposition, and for anode longevity. Current density may exceed 1000 mA per cm-squared, at least an order of magnitude greater than that of display backplanes. Anode longevity may be enhanced by using relatively large anodes compared to the grid pitch of the printhead, by lengthening the conductive paths through anodes, or both. Embodiments may be constructed by adding anode and insulation layers on top of matrix-controlled switching circuits.
IPC 8 full level
C25D 1/00 (2006.01); B33Y 30/00 (2015.01)
CPC (source: EP)
B33Y 30/00 (2014.12); C25D 1/003 (2013.01); C25D 1/20 (2013.01)
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)
US 2020047531 W 20200821; EP 20803671 A 20200821