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1. (WO2018102021) SUPPORTS FOR SINTERING ADDITIVELY MANUFACTURED PARTS
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Pub. No.:
WO/2018/102021
International Application No.:
PCT/US2017/054743
Publication Date:
07.06.2018
International Filing Date:
02.10.2017
IPC:
B22F 3/105
(2006.01) ,
B33Y 10/00
(2015.01) ,
B33Y 30/00
(2015.01) ,
B33Y 40/00
(2015.01)
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 30][IPC code unknown for B33Y 40]
Applicants:
MARKFORGED, INC.
[US/US]; 85 School Street Watertown, MA 02472, US
Inventors:
MARK, Gregory, Thomas
; US
Agent:
NOE, Keith, F.
; US
Priority Data:
62/429,711
02.12.2016
US
62/430,902
06.12.2016
US
62/442,395
04.01.2017
US
62/480,331
31.03.2017
US
62/489,410
24.04.2017
US
62/505,081
11.05.2017
US
62/519,138
13.06.2017
US
Title
(EN)
SUPPORTS FOR SINTERING ADDITIVELY MANUFACTURED PARTS
(FR)
SUPPORTS POUR FRITTAGE DE PIÈCES FABRIQUÉES PAR FABRICATION ADDITIVE
Abstract:
(EN)
To reduce distortion in an additively manufactured part, a shrinking platform is formed from a metal particulate filler in a debindable matrix. Shrinking supports of the same material are formed above the shrinking platform, and a desired part of the same material is formed upon them. A sliding release layer is provided below the shrinking platform of equal or larger surface area than a bottom of the shrinking platform to lateral resistance between the shrinking platform and an underlying surface. The matrix is debound sufficient to form a shape-retaining brown part assembly including the shrinking platform, shrinking supports, and the desired part. The shape-retaining brown part assembly is heated to shrink all of the components together at a same rate via atomic diffusion.
(FR)
Pour réduire la distorsion dans une pièce fabriquée par fabrication additive, l'invention concerne une plate-forme de rétraction formée à partir d'une charge particulaire métallique dans une matrice pouvant être déliée. Des supports de rétraction du même matériau sont formés au-dessus de la plate-forme de rétraction, et une pièce souhaitée du même matériau est formée sur ceux-ci. Une couche de libération coulissante est disposée au-dessous de la plate-forme de rétraction avec une superficie supérieure ou égale à celle d'un fond de la plate-forme de rétraction pour une résistance latérale entre la plate-forme de rétraction et une surface sous-jacente. La matrice est déliée suffisamment pour former un ensemble pièce brune à maintien de forme comprenant la plate-forme de rétraction, des supports de rétraction et la pièce souhaitée. L'ensemble pièce brune à maintien de forme est chauffé pour rétrécir tous les composants ensemble à un même taux par diffusion atomique.
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
)