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1. (WO2018220213) METHOD FOR IMPROVED MANUFACTURING OF A DUAL MICROSTRUCTURE PART
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Pub. No.: WO/2018/220213 International Application No.: PCT/EP2018/064535
Publication Date: 06.12.2018 International Filing Date: 01.06.2018
IPC:
B22F 3/22 (2006.01) ,B22F 7/06 (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
22
for producing castings from a slip
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
7
Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
06
of composite workpieces or articles from parts, e.g. to form tipped tools
Applicants:
SAFRAN [FR/FR]; 2 Boulevard du Général Martial Valin 75015 Paris, FR
Inventors:
RICHARD, Sébastien, Jean; FR
Agent:
BARBE, Laurent; FR
PIERRE, Gauer; FR
GEVERS & ORES (GROUPEMENT 92); 41 Avenue de Friedland 75008 Paris, FR
Priority Data:
175487701.06.2017FR
185341818.04.2018FR
Title (EN) METHOD FOR IMPROVED MANUFACTURING OF A DUAL MICROSTRUCTURE PART
(FR) PROCÉDÉ DE FABRICATION AMÉLIORÉ D'UNE PIÈCE A MICROSTRUCTURE DUALE
Abstract:
(EN) A method for welding together at least two parts of green material, referred to as green parts, by means of co-sintering, comprising the following steps: - assembling the at least two green parts at a junction zone of said parts so as to form a green one-piece assembly, - de-binding the green one-piece assembly, and - sintering the one-piece assembly so as to obtain a dense one-piece assembly forming a final part, characterised in that the two green parts (10, 12) each have a composition of different powder, so as to produce a final part (1) having at least two parts with different grain sizes.
(FR) Procédé de soudage d'au moins deux pièces de matériau vert, dites pièces vertes, par cofrittage, comportant les étapes suivantes: - assemblage des au moins deux pièces vertes au niveau d'une zone de jonction de ces pièces de manière à former un ensemble monobloc vert, - déliantage de l'ensemble monobloc vert, et - frittage de l'ensemble monobloc de manière à obtenir un ensemble monobloc dense formant pièce finale, caractérisé en ce que les deux pièces vertes (10, 12) présentent chacune une composition de poudre différente, de manière à donner une pièce finale (1) comportant au-moins deux parties à taille de grain différentes.
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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: French (FR)
Filing Language: French (FR)