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Title: Indirect additive manufacturing process using amine-containing adhesive polymers

Abstract

A method for binder jetting additive manufacturing of an object, the method comprising: (i) separately feeding a powder from which said object is to be manufactured and a solution comprising an adhesive polymer dissolved in a solvent into an additive manufacturing device, wherein said adhesive polymer is an amine-containing polymer having a molecular weight of at least 200 g/mole and is present in said solution in a concentration of 1-30 wt % to result in said solution having a viscosity of 2-25 mPa·s and a surface tension of 25-45 mN/m at room temperature; and (ii) dispensing selectively positioned droplets of said adhesive polymer, from a printhead of said additive manufacturing device, into a bed of said powder to bind particles of said powder with said adhesive polymer to produce a preform having a shape of the object to be manufactured.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); The ExOne Company, North Huntingdon, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1892633
Patent Number(s):
11254617
Application Number:
16/243,507
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); The ExOne Company (Huntingdon, PA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
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:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/09/2019
Country of Publication:
United States
Language:
English

Citation Formats

Saito, Tomonori, Elliott, Amy M., Brunermer, Daniel T., Gilmer, Dustin Blake, Lehmann, Mirko, and Yu, Huayun. Indirect additive manufacturing process using amine-containing adhesive polymers. United States: N. p., 2022. Web.
Saito, Tomonori, Elliott, Amy M., Brunermer, Daniel T., Gilmer, Dustin Blake, Lehmann, Mirko, & Yu, Huayun. Indirect additive manufacturing process using amine-containing adhesive polymers. United States.
Saito, Tomonori, Elliott, Amy M., Brunermer, Daniel T., Gilmer, Dustin Blake, Lehmann, Mirko, and Yu, Huayun. Tue . "Indirect additive manufacturing process using amine-containing adhesive polymers". United States. https://www.osti.gov/servlets/purl/1892633.
@article{osti_1892633,
title = {Indirect additive manufacturing process using amine-containing adhesive polymers},
author = {Saito, Tomonori and Elliott, Amy M. and Brunermer, Daniel T. and Gilmer, Dustin Blake and Lehmann, Mirko and Yu, Huayun},
abstractNote = {A method for binder jetting additive manufacturing of an object, the method comprising: (i) separately feeding a powder from which said object is to be manufactured and a solution comprising an adhesive polymer dissolved in a solvent into an additive manufacturing device, wherein said adhesive polymer is an amine-containing polymer having a molecular weight of at least 200 g/mole and is present in said solution in a concentration of 1-30 wt % to result in said solution having a viscosity of 2-25 mPa·s and a surface tension of 25-45 mN/m at room temperature; and (ii) dispensing selectively positioned droplets of said adhesive polymer, from a printhead of said additive manufacturing device, into a bed of said powder to bind particles of said powder with said adhesive polymer to produce a preform having a shape of the object to be manufactured.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {2}
}

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