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1. (WO2018055345) IMPROVED ADDITIVE LAYER MANUFACTURING
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Pub. No.: WO/2018/055345 International Application No.: PCT/GB2017/052759
Publication Date: 29.03.2018 International Filing Date: 18.09.2017
IPC:
B22F 3/105 (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
10
Sintering only
105
by using electric current, laser radiation or plasma
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:
BAE SYSTEMS PLC [GB/GB]; 6 Carlton Gardens London SW1Y 5AD, GB
Inventors:
WEBB-MARTIN, Matthew, Trevelyan; GB
VERIC, Jason; GB
Agent:
BAE SYSTEMS PLC, GROUP IP DEPT; Farnborough Aerospace Centre Farnborough Hampshire GU14 6YU, GB
Priority Data:
1616080.621.09.2016GB
16275140.821.09.2016EP
Title (EN) IMPROVED ADDITIVE LAYER MANUFACTURING
(FR) FABRICATION ADDITIVE AMÉLIORÉE
Abstract:
(EN) This invention relates to additive layer manufacturing (ALM) and in particular to a method to minimise residual thermal stress in a component manufactured by powder fed ALM processes, and objects formed therefrom. There is provided a three dimensional object formed by additive layer manufacture, wherein said object is formed from a plurality of sintered material layers of a feed material, wherein said object comprises at least one formed cavity, said cavity substantially filled with a filler material.
(FR) La présente invention concerne la fabrication additive (FA) et, en particulier, un procédé en vue de réduire au minimum la contrainte thermique résiduelle dans un élément fabriqué par des procédés FA alimentés par poudre, et des objets ainsi formés. L'invention porte également sur un objet tridimensionnel formé par fabrication additive, ledit objet étant formé à partir d'une pluralité de couches de matériau fritté d'un matériau d'alimentation, ledit objet comprenant au moins une cavité formée, ladite cavité étant sensiblement remplie d'un matériau de remplissage.
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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)