(12) International Application Status Report

Received at International Bureau: 08 July 2018 (08.07.2018)

Information valid as of: 07 December 2018 (07.12.2018)

Report generated on: 17 June 2019 (17.06.2019)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2019/00560203 January 2019 (03.01.2019) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/US2018/03895622 June 2018 (22.06.2018) English (EN)

(31) Priority number(s): (32) Priority date(s): (33) Priority status:
62/527,448 (US)30 June 2017 (30.06.2017) Priority document received (in compliance with PCT Rule 17.1)

(51) International Patent Classification:
B22F 3/105 (2006.01); B23K 15/00 (2006.01); B23K 15/02 (2006.01)

(71) Applicant(s):
ABLER, Jeffrey Alan [US/US]; 150 Treetop Court Georgetown, Kentucky 40324 (US) (for all designated states)

(72) Inventor(s):
ABLER, Jeffrey Alan; 150 Treetop Court Georgetown, Kentucky 40324 (US)

(74) Agent(s):
SERBIN, Gary; Koffsky Schwalb LLC 349 Fifth Avenue, Suite 733 New York, New York 10016 (US)

(54) Title (EN): Large Scale High Speed Precision Powder Bed Fusion Additive Manufacturing
(54) Title (FR): FABRICATION ADDITIVE PAR FUSION DE LIT DE POUDRE DE PRÉCISION À GRANDE VITESSE ET GRANDE ÉCHELLE

(57) Abstract:
(EN): A method and system are disclosed for powder bed fusion additive manufacturing that enables faster processing speeds, larger work volumes, and greater precision relative to the state of the art in that field. A two dimensional pattern of laser beams is scanned across each layer of a powder bed with the power of the beams independently controlled in a manner such that the three dimensional temperature distribution of the material being processed and the adjacent previously processed material maintain a maximum value between the points of complete melting and boiling for the given material, while simultaneously controlling the capillary flow of the molten material and thus the melt pool geometry by managing its surface tension through the induced thermal gradients on the surface of the molten material.
(FR): L'invention concerne un procédé et un système pour la fabrication additive par fusion de lit de poudre qui permet des vitesses de traitement plus rapides, des volumes de travail plus grands et une plus grande précision par rapport à l'état de la technique dans ce domaine. Un motif bidimensionnel de faisceaux laser est balayé à travers chaque couche d'un lit de poudre, la puissance des faisceaux étant commandée indépendamment de telle sorte que la distribution de température en trois dimensions du matériau en cours de traitement et du matériau adjacent précédemment traité maintienne une valeur maximale entre les points de fusion complète et d'ébullition pour le matériau donné, tout en commandant simultanément le flux capillaire du matériau fondu et donc la géométrie du bain de fusion en gérant sa tension de surface à travers les gradients thermiques induits sur la surface du matériau fondu.

International search report:
Received at International Bureau: 11 November 2018 (11.11.2018) [US]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) 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
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 (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG
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 (EAPO) : AM, AZ, BY, KG, KZ, RU, TJ, TM