公开(公告)号：US20220024075A1

公开(公告)日：2022-01-27

申请号：US17274406

申请日：2019-09-10

Applicant: 3DFortify, Inc.

Inventor： Joshua J. Martin ,  Scott Goodrich ,  Andrew J. Caunter ,  Manny Barros ,  Benjamin M. MacDonald

IPC: B29B7/38 ,  B29B7/60 ,  B29B7/72 ,  B29C64/336 ,  B29C64/343 ,  B29C64/314 ,  B29C64/393 ,  B29C64/106 ,  B33Y40/10 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00 ,  B01F15/00 ,  B01F7/00 ,  B01F3/14 ,  B01F3/12

Abstract: Additive manufacturing apparatus and methods for mixing and dispensing materials, and articles with controlled particle concentrations. Additive manufacturing apparatus includes a mixer; a reservoir in fluidic communication with the mixer; and a build plate parallel to the reservoir. Additive manufacturing apparatus includes a mixer and a solid particle dispensing system and/or a slurry dispensing system. A method for handling precursors during additive manufacturing includes (a) providing first and second precursor materials and/or a slurry to a mixer; (b) mixing the materials in the mixer; (c) transporting the mixed materials directly to a reservoir disposed in parallel with a build plate; (d) curing at least a portion of the transported and mixed materials; and (e) repeating step (d) at least once. An article includes a plurality of adjacent layers, a concentration of particles in each layer defining a controlled concentration gradient and/or vary by no more than ±50%.