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1. WO2020115468 - POWDER DOSING SYSTEM

Publication Number WO/2020/115468
Publication Date 11.06.2020
International Application No. PCT/GB2019/053413
International Filing Date 03.12.2019
IPC
B33Y 30/00 2015.01
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
B29C 64/153 2017.01
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
10Processes of additive manufacturing
141using only solid materials
153using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/241 2017.01
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
20Apparatus for additive manufacturing; Details thereof or accessories therefor
227Driving means
241for rotary motion
B29C 64/255 2017.01
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
20Apparatus for additive manufacturing; Details thereof or accessories therefor
255Enclosures for the building material, e.g. powder containers
B29C 64/307 2017.01
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
30Auxiliary operations or equipment
307Handling of material to be used in additive manufacturing
B29C 64/343 2017.01
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
30Auxiliary operations or equipment
307Handling of material to be used in additive manufacturing
343Metering
CPC
B22F 2003/1057
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
10Sintering only
105by using electric current ; other than for infra-red radiant energy; , laser radiation or plasma
1055Selective sintering, i.e. stereolithography
1056Apparatus components, details or accessories
1057for control or data processing, e.g. algorithms
B22F 3/1055
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
10Sintering only
105by using electric current ; other than for infra-red radiant energy; , laser radiation or plasma
1055Selective sintering, i.e. stereolithography
B29C 64/153
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 [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
141using only solid materials
153using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/165
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 [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
10Processes of additive manufacturing
165using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
B29C 64/241
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 [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
20Apparatus for additive manufacturing; Details thereof or accessories therefor
227Driving means
241for rotary motion
B29C 64/255
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 [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
20Apparatus for additive manufacturing; Details thereof or accessories therefor
255Enclosures for the building material, e.g. powder containers
Applicants
  • XAAR 3D LIMITED [GB]/[GB]
Inventors
  • TJELLESEN, Frederik
  • HARTMANN, Anders
Agents
  • PITCHFORD, James Edward
Priority Data
1819681.603.12.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POWDER DOSING SYSTEM
(FR) SYSTÈME DE DOSAGE DE POUDRE
Abstract
(EN)
A powder dosing system for an apparatus for manufacturing a three-dimensional object from powder, the powder dosing system comprising: a rotating agitator arranged to agitate a supply of delivered powder by rotating through an agitation volume; a recirculation edge adjacent the agitation volume, arranged to allow excess agitated powder to freely flow over the recirculation edge and out of the dosing system; and a dosing blade arranged to dose a dosed volume of powder to a work surface comprising a build bed surface; wherein the dosing blade is arranged to sweep through a swept volume, which is located, in a vertical sense, above the agitation volume and overlaps, in a vertical sense, the agitation volume, such that the dosing blade doses agitated powder to the work surface.
(FR)
la présente invention concerne un système de dosage de poudre pour un appareil de fabrication d'un objet tridimensionnel à partir de poudre, le système de dosage de poudre comprenant: un agitateur rotatif agencé pour agiter une charge de poudre distribuée par rotation à travers un volume d'agitation; un bord de recirculation adjacent au volume d'agitation, agencé pour permettre à la poudre agitée en excès de s'écouler librement sur le bord de recirculation et hors du système de dosage; et une pale de dosage conçue pour doser un volume dosé de poudre sur une surface de travail comprenant une surface de lit de construction; la pale de dosage étant conçue pour balayer un volume balayé, qui se situe, dans un sens vertical, au-dessus du volume d'agitation et chevauche, dans un sens vertical, le volume d'agitation, de telle sorte que la pale de dosage dose une poudre agitée sur la surface de travail.
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