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1. (WO2019032449) ACHIEVING FUNCTIONALLY-GRADED MATERIAL COMPOSITION THROUGH BICONTINUOUS MESOSTRUCTURAL GEOMETRY IN ADDITIVE MANUFACTURING
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/032449 International Application No.: PCT/US2018/045364
Publication Date: 14.02.2019 International Filing Date: 06.08.2018
IPC:
B22F 3/105 (2006.01) ,B33Y 10/00 (2015.01) ,B33Y 70/00 (2015.01) ,C08F 290/06 (2006.01) ,C08G 18/10 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
10
Sintering only
105
by using electric current, laser radiation or plasma
[IPC code unknown for B33Y 10][IPC code unknown for B33Y 70]
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
290
Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
02
on to polymers modified by introduction of unsaturated end groups
06
Polymers provided for in subclass C08G52
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
08
Processes
10
Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
Applicants:
THE PENN STATE RESEARCH FOUNDATION [US/US]; 304 Old Main University Park, PA 16802, US
Inventors:
STONER, Brant Edward; US
BARTOLAI, Joseph; US
KAWEESA, Dorcas Vivian; US
MEISEL, Nicholas A.; US
Agent:
WATHEN, Douglas L.; US
ANDERSON, Thomas, E.; US
MACKENZIE, Kevin, S.; US
CHOI, Yongsok; US
GOULD, Weston, R.; US
Priority Data:
62/542,05407.08.2017US
Title (EN) ACHIEVING FUNCTIONALLY-GRADED MATERIAL COMPOSITION THROUGH BICONTINUOUS MESOSTRUCTURAL GEOMETRY IN ADDITIVE MANUFACTURING
(FR) OBTENTION D'UNE COMPOSITION DE MATÉRIAUX À GRADIENT FONCTIONNEL PAR GÉOMÉTRIE MÉSOSTRUCTURALE BICONTINUE DANS LA FABRICATION ADDITIVE
Abstract:
(EN) A method of creating a functionally-graded multi-material (FGM) part in multi-material additive manufacturing includes providing a part digitized into voxels, generating a lattice structure comprised of a series of repeating unit cells, where each unit cell is the smallest nonrepeating constituents of the lattice structure and generated by a continuous surface defined by a continuous function. The method further includes taking an inverse volume of the lattice structure within the part, creating a material gradient by varying a thickness of the surface at the boundary between the lattice structure and the inverse volume, assigning one of the two FGM component materials to the voxels in the volume occupied by the lattice structure and assigning the other of the two FGM component materials to the voxels in the volume occupied by the inverse volume, outputting the voxels each with a designated material as a data file, wherein the lattice structure and the inverse volume forms a mechanical interlock at the interface of the two component materials.
(FR) L'invention concerne un procédé de création d'une pièce constituée de plusieurs matériaux à gradient fonctionnel (FGM) dans la fabrication additive multimatériau, qui consiste à : fournir une pièce numérisée en voxels, générer une structure de réseau composée d'une série de cellules unitaires répétées, chaque cellule unitaire étant le plus petit constituant non répété de la structure de réseau et étant générée par une surface continue définie par une fonction continue. Le procédé consiste en outre à : prendre un volume inverse de la structure de réseau à l'intérieur de la pièce ; créer un gradient de matériau en faisant varier une épaisseur de la surface à la limite entre la structure de réseau et le volume inverse ; attribuer l'un des deux matériaux constitutifs FGM aux voxels du volume occupé par la structure de réseau, et attribuer l'autre des deux matériaux constitutifs FGM aux voxels du volume occupé par le volume inverse ; produire les voxels comportant chacun un matériau désigné en tant que fichier de données. La structure de réseau et le volume inverse forment un verrouillage mécanique au niveau de l'interface des deux matériaux constitutifs.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)