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1. WO2021011077 - OBJECT MODEL TRANSFORMATIONS

Publication Number WO/2021/011077
Publication Date 21.01.2021
International Application No. PCT/US2020/033828
International Filing Date 20.05.2020
IPC
B29C 64/393 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
30Auxiliary operations or equipment
386Data acquisition or data processing for additive manufacturing
393for controlling or regulating additive manufacturing processes
B33Y 50/02 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
50Data acquisition or data processing for additive manufacturing
02for controlling or regulating additive manufacturing processes
G06F 30/20 2020.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
30Computer-aided design
20Design optimisation, verification or simulation
CPC
B22F 10/28
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
20Direct sintering or melting
28Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/80
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
10Additive manufacturing of workpieces or articles from metallic powder
80Data acquisition or data processing
B29C 64/386
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
30Auxiliary operations or equipment
386Data acquisition or data processing for additive manufacturing
B33Y 50/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
50Data acquisition or data processing for additive manufacturing
G06F 2113/10
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2113Details relating to the application field
10Additive manufacturing, e.g. 3D printing
G06F 30/20
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
30Computer-aided design [CAD]
20Design optimisation, verification or simulation
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • VINACUA PLA, Alvaro
  • CHICA CALAF, Antonio
  • CARRUESCO LLORENS, Alex
  • GIRALT GARCIA, Oriol
  • DIEGO GUTIERREZ, Victor
  • GONZALEZ MARTIN, Sergio
  • MARTIN GARCIA, Pol
  • KAZATZIS, Konstantinos
  • BALLESTEROS BRANDAO, Joao Hugo
Agents
  • WOODWORTH, Jeffrey C.
  • BLOUNT, Barry D.
  • ROGERS, Christopher R.
  • HOLOMON, Jamilla N.
Priority Data
PCT/US2019/04181015.07.2019US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) OBJECT MODEL TRANSFORMATIONS
(FR) TRANSFORMATIONS DE MODÈLE D'OBJET
Abstract
(EN) An example method, performed by processing circuitry, includes receiving an object model describing a geometry of a three-dimensional object to be generated by additive manufacturing. A geometrical transformation to be applied to the object model is determined. A first object portion comprising a surface feature of less than a threshold size and a second object portion free of such a surface feature is identified and a transformed model describing a volume containing a modified version of the object as a plurality of contiguous, non-overlapping sub-volumes is determined. Each sub-volume may be categorised as being interior to the object model, exterior to the object model, or a as a boundary sub-volume which spans an object boundary. The modified version of the object is determined by applying the geometrical transformation in the second object portion and not applying the geometrical transformation in the first object portion.
(FR) Un procédé donné à titre d'exemple, mis en œuvre par un ensemble de circuits de traitement, consiste à recevoir un modèle d'objet décrivant une géométrie d'un objet tridimensionnel à produire par fabrication additive. Une transformation géométrique à appliquer au modèle d'objet est déterminée. Une première partie d'objet comprenant une caractéristique de surface inférieure à une taille seuil et une seconde partie d'objet exempte d'une telle caractéristique de surface est identifiée et un modèle transformé décrivant un volume contenant une version modifiée de l'objet sous la forme d'une pluralité de sous-volumes contigus non chevauchants est déterminé. Chaque sous-volume peut être catégorisé comme étant à l'intérieur du modèle d'objet, à l'extérieur du modèle d'objet, ou en tant que sous-volume limite qui couvre une limite d'objet. La version modifiée de l'objet est déterminée par application de la transformation géométrique dans la seconde partie d'objet et sans application de la transformation géométrique dans la première partie d'objet.
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