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1. (WO2018132202) ADDITIVE MANUFACTURING USING A DYNAMICALLY GROWN BUILD ENVELOPE
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Pub. No.: WO/2018/132202 International Application No.: PCT/US2017/064984
Publication Date: 19.07.2018 International Filing Date: 07.12.2017
IPC:
B29C 64/153 (2017.01) ,B29C 64/255 (2017.01) ,B29C 64/205 (2017.01) ,B29C 64/268 (2017.01) ,B22F 3/105 (2006.01) ,B28B 1/00 (2006.01) ,B23K 26/34 (2006.01) ,B33Y 10/00 (2015.01)
[IPC code unknown for B29C 64/153][IPC code unknown for B29C 64/255][IPC code unknown for B29C 64/205][IPC code unknown for B29C 64/268]
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
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
1
Producing shaped articles from the material
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
34
Welding for purposes other than joining, e.g. build-up welding
[IPC code unknown for B33Y 10]
Applicants:
GENERAL ELECTRIC COMPANY [US/US]; 1 River Road Schenectady Schenectady, NY 12345, US
Inventors:
REDDING, Mackenzie, Ryan; US
MAMRAK, Justin; US
FIELDMAN, Zachary, David; US
Agent:
OVERBECK, Brian, P.; US
GNIBUS, Michael, M.; US
WINTER, Catherine, J.; US
DIMAURO, Peter, T.; US
MIDGLEY, Stephen, G.; US
Priority Data:
15/406,44413.01.2017US
Title (EN) ADDITIVE MANUFACTURING USING A DYNAMICALLY GROWN BUILD ENVELOPE
(FR) FABRICATION ADDITIVE À L'AIDE D'UNE ENVELOPPE DE CONSTRUCTION À CROISSANCE DYNAMIQUE
Abstract:
(EN) The present disclosure generally relates to additive manufacturing systems and methods on a large-scale format. One aspect involves a build unit that can be moved around in three dimensions by a positioning system, building separate portions of a large object. The build unit has an energy directing device that directs, e.g., laser or e-beam irradiation onto a powder layer. In the case of laser irradiation, the build volume may have a gasflow device that provides laminar gas flow to a laminar flow zone above the layer of powder. This allows for efficient removal of the smoke, condensates, and other impurities produced by irradiating the powder (the "gas plume") without excessively disturbing the powder layer. The build unit may also have a recoater that allows it to selectively deposit particular quantities of powder in specific locations over a work surface to build large, high quality, high precision objects.
(FR) La présente invention concerne d'une manière générale des systèmes et des procédés de fabrication additive sur un format à grande échelle. Un aspect comprend une unité de construction qui peut être déplacée dans les trois dimensions par un système de positionnement, construisant des parties séparées d'un grand objet. L'unité de construction comprend un dispositif d'orientation d'énergie qui dirige, par exemple, un rayonnement laser ou par faisceau électronique sur une couche de poudre. Dans le cas d'un rayonnement laser, le volume de construction peut avoir un dispositif d'écoulement de gaz qui fournit un écoulement de gaz laminaire à une zone d'écoulement laminaire au-dessus de la couche de poudre. Ceci permet une élimination efficace de la fumée, des condensats et d'autres impuretés produites par exposition de la poudre à un rayonnement (le « panache de gaz ») sans perturber excessivement la couche de poudre. L'unité de construction peut également comprendre un dispositif de réenduction qui lui permet de déposer sélectivement des quantités particulières de poudre dans des emplacements spécifiques sur une surface de travail pour construire des grands objets de haute qualité et de haute précision.
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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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)