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1. WO2022011164 - SYSTEMS AND METHODS FOR POWDER BED DENSITY MEASUREMENT AND CONTROL FOR ADDITIVE MANUFACTURING

Publication Number WO/2022/011164
Publication Date 13.01.2022
International Application No. PCT/US2021/040926
International Filing Date 08.07.2021
IPC
B22F 10/37 2021.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
30Process control
37of powder bed aspects, e.g. density
B29C 64/00 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
64Additive manufacturing, i.e. manufacturing of three-dimensional objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
B33Y 30/00 2015.1
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
30Apparatus for additive manufacturing; Details thereof or accessories therefor
B22F 10/00 2021.1
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
Applicants
  • DESKTOP METAL, INC. [US]/[US]
Inventors
  • HUDELSON, George
  • HOISINGTON, Paul, A.
  • FONTANA, Richard, Remo
  • SACHS, Emanuel, Michael
  • CRAVEN, Christopher, Anthony
  • MCCAMBRIDGE, Matthew
Agents
  • OAK LAW, PLLC
Priority Data
63/049,93609.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR POWDER BED DENSITY MEASUREMENT AND CONTROL FOR ADDITIVE MANUFACTURING
(FR) SYSTÈMES ET PROCÉDÉS DE MESURE DE DENSITÉ DE LIT DE POUDRE ET COMMANDE DE FABRICATION ADDITIVE
Abstract
(EN) Systems and methods are disclosed for forming a three-dimensional object using additive manufacturing. One method includes depositing a first amount of powder material onto a powder print bed of a printing system, spreading the first amount of powder material across the powder print bed to form a first layer, measuring a density of powder material within the powder print bed, and adjusting a parameter of the printing system based on the measured density of the powder material within the powder print bed.
(FR) L'invention concerne des systèmes et des procédés de formation d'un objet tridimensionnel à l'aide d'une fabrication additive. Un procédé consiste à déposer une première quantité de matériau en poudre sur un lit d'impression de poudre d'un système d'impression, à étaler la première quantité de matériau en poudre de part et d'autre du lit d'impression de poudre pour former une première couche, à mesurer une densité de matériau en poudre à l'intérieur du lit d'impression de poudre, et à régler un paramètre du système d'impression sur la base de la densité mesurée du matériau en poudre à l'intérieur du lit d'impression de poudre.
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