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Title: System and method for controlling oxidation of metals during freeform casting

Abstract

A system is disclosed for printing a component. The system may have a nozzle controlled for movement within a plane. The nozzle may be configured to dispense a molten metal. A substrate may be positioned within a reservoir. The substrate may receive the molten metal to form the component in a printing operation. A heated barrier material in a molten state may be contained within the reservoir for forming a liquid barrier between an atmosphere and the substrate. The nozzle has a tip which is submerged within the liquid barrier while dispensing the molten metal during the printing operation. The liquid barrier forms a barrier between an atmosphere in a vicinity of the substrate and the substrate.

Inventors:
; ;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1824008
Patent Number(s):
11020797
Application Number:
16/141,437
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 09/25/2018
Country of Publication:
United States
Language:
English

Citation Formats

Pascall, Andrew J., Kuntz, Joshua David, and McCall, Scott K. System and method for controlling oxidation of metals during freeform casting. United States: N. p., 2021. Web.
Pascall, Andrew J., Kuntz, Joshua David, & McCall, Scott K. System and method for controlling oxidation of metals during freeform casting. United States.
Pascall, Andrew J., Kuntz, Joshua David, and McCall, Scott K. Tue . "System and method for controlling oxidation of metals during freeform casting". United States. https://www.osti.gov/servlets/purl/1824008.
@article{osti_1824008,
title = {System and method for controlling oxidation of metals during freeform casting},
author = {Pascall, Andrew J. and Kuntz, Joshua David and McCall, Scott K.},
abstractNote = {A system is disclosed for printing a component. The system may have a nozzle controlled for movement within a plane. The nozzle may be configured to dispense a molten metal. A substrate may be positioned within a reservoir. The substrate may receive the molten metal to form the component in a printing operation. A heated barrier material in a molten state may be contained within the reservoir for forming a liquid barrier between an atmosphere and the substrate. The nozzle has a tip which is submerged within the liquid barrier while dispensing the molten metal during the printing operation. The liquid barrier forms a barrier between an atmosphere in a vicinity of the substrate and the substrate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2021},
month = {Tue Jun 01 00:00:00 EDT 2021}
}

Works referenced in this record:

Device and method for the production of three-dimensional objects
patent, September 2005


3-D model making
patent, April 1998


Apparatus for Fabricating an Object
patent-application, August 2017


Stereolithographic method for forming three-dimensional structure
patent, September 2010


Additive Manufacturing of Semi-Solid Metal Alloys Using Ultrasonic Agitation
patent-application, July 2017