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1. (WO1998051464) METHOD AND DEVICE FOR MANUFACTURING THREE-DIMENSIONAL BODIES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/051464 International Application No.: PCT/SE1998/000808
Publication Date: 19.11.1998 International Filing Date: 30.04.1998
Chapter 2 Demand Filed: 30.11.1998
IPC:
B29C 67/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
67
Shaping techniques not covered by groups B29C39/-B29C65/93
Applicants:
LARSSON, Ralf [SE/SE]; SE
Inventors:
LARSSON, Ralf; SE
Agent:
GÖTEBORGS PATENTBYRÅ; Sjöporten 4 S-417 64 Göteborg, SE
Priority Data:
9701663-830.04.1997SE
Title (EN) METHOD AND DEVICE FOR MANUFACTURING THREE-DIMENSIONAL BODIES
(FR) PROCEDE ET DISPOSITIF SERVANT A FABRIQUER DES ELEMENTS TRIDIMENSIONNELS
Abstract:
(EN) A method for producing three-dimensional bodies of a large number of mutually connected layers of a particle-shaped material such as a powder, and where the information of the appearance of each layer is achieved from a computer's CAD-unit or similar. An essentially even particle layer (7) of building material is applied on a support base (6) and on a masking device (9) is arranged a masking pattern in accordance with the information from the CAD-unit, which masking device is led over said particle layer and close to it. A radiation producer (8) is arranged or is led over the masking device (9), whereby the particles which are not covered by the masking pattern are exposed for radiation and thereby are attached to each other. The masking pattern is removed from the masking device and new sequences in accordance with the above are carried through until the three-dimensional body (19) is produced.
(FR) Procédé servant à fabriquer des éléments tridimensionnels composés de couches reliées les unes aux autres en matériau en particules, tel qu'une poudre, l'aspect de chaque couche étant réalisé, par exemple, au moyen d'une unité de dessin assisté par ordinateur (DAO). On applique une couche régulière (7) de particules de matériau de constitution sur une base de support (6), on produit sur un dispositif de masquage (9) un motif de masquage en fonction de l'information provenant de l'unité de DAO et on place ce dispositif de masquage au-dessus et à proximité de ladite couche de particules. On place un générateur de rayonnement (8) au-dessus du dispositif de masquage (9), les particules non recouvertes par le motif de masquage étant exposées au rayonnement et, de ce fait, fixées les unes aux autres. On enlève le motif de masquage du dispositif de masquage et on exécute de nouvelles opérations correspondant à celle décrite ci-dessus jusqu'à l'obtention d'un élément tridimensionnel (19).
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
EP1015214US6531086JP2001517168 DE000069806949PT1015214AU1998073564
DK1015214