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1. (WO2018200198) ADDITIVE MANUFACTURING CONTROL SYSTEMS

Pub. No.:    WO/2018/200198    International Application No.:    PCT/US2018/026953
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 11 01:59:59 CEST 2018
IPC: B29C 64/386
B29C 64/264
B29C 64/141
B29C 64/295
B33Y 50/02
Applicants: DIVERGENT TECHNOLOGIES, INC.
Inventors: BUCKNELL, John, Russell
EL NAGA, Eahab, Nagi
CZINGER, Kevin, Robert
TENHOUTEN, Broc, William
Title: ADDITIVE MANUFACTURING CONTROL SYSTEMS
Abstract:
Systems and methods for control in additive manufacturing systems are provided. A powder-bed fusion apparatus can include an energy beam source that generates an energy beam and a deflector that applies the energy beam to fuse powder material to create a 3-D object based on an object model. The system can also include a characterizer that obtains information relating to fusing the powder material. The characterizer can be a sensor that measures the shape of the object, a processor that determines a physics-based model of the object, etc. The system can also include a comparator that determines a variation from the object model based on the information, and a compensator that modifies the application of energy to the powder material based on the variation. For example, applied energy can be increased in areas that require higher energy to completely fuse powder material, such areas of thicker powder layer.