Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Indirect additive manufacturing process using amine-containing adhesive polymers

Patent ·
OSTI ID:1892633
; ; ; ; ;
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.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); The ExOne Company, North Huntingdon, PA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); The ExOne Company (Huntingdon, PA)
Patent Number(s):
11,254,617
Application Number:
16/243,507
OSTI ID:
1892633
Country of Publication:
United States
Language:
English

References (2)

Effects of layer thickness and binder saturation level parameters on 3D printing process journal July 2010
Spacecraft thermal control book January 2012

Similar Records

Related Subjects