Patent ID: 11938537
Assignee: XEROX CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 20:
21. A method for selectively patterning a dense sinterable additive manufactured feedstock structure into a 3D part with a 3D printing system, the method comprising:
a) forwarding a plurality of web sheets including a plurality of dense feedstock 3D slices in a process direction with a transfer subsystem of a printing system, the 3D slices including feedstock having a dense sinterable material and binder composite with porosity below 20% volume, the 3D slices having an imaging area thereon;
b) selectively depositing a sintering ink according to a 3D pattern onto the imaging area of the dense feedstock 3D slices, the sintering ink infiltrating into the dense feedstock 3D slices to form patterned dense feedstock slices in accordance with the 3D pattern;
c) stacking the patterned dense feedstock slices over a previously formed patterned dense feedstock slice to form a build monolith of the patterned dense feedstock slices;
d) removing at least some of the binder composite from the build monolith; and
e) sintering the build monolith into the 3D part shaped based on the 3D pattern.