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1. (WO1998050209) SLICING DEVICE USING YARN FOR CUTTING THIN WAFERS USING THE ANGULAR INTERSECTION OF AT LEAST TWO YARN LAYERS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050209 International Application No.: PCT/IB1998/000180
Publication Date: 12.11.1998 International Filing Date: 13.02.1998
Chapter 2 Demand Filed: 13.11.1998
IPC:
B23D 57/00 (2006.01) ,B28D 5/04 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
D
PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
57
Sawing machines or sawing devices not covered by one of groups B23D45/-B23D55/115
B PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
D
WORKING STONE OR STONE-LIKE MATERIALS
5
Fine working of gems, jewels, crystals, e.g. of semiconductor material; Apparatus therefor
04
by tools other than of rotary type, e.g. reciprocating tools
Applicants:
HCT SHAPING SYSTEMS SA [CH/CH]; 42, rue de Genève CH-1033 Cheseaux, CH (AllExceptUS)
HAUSER, Charles [CH/CH]; CH (UsOnly)
Inventors:
HAUSER, Charles; CH
Agent:
MICHELI & CIE; 122, rue de Genève Case postale 61 CH-1226 Thônex, CH
Priority Data:
1067/9707.05.1997CH
Title (EN) SLICING DEVICE USING YARN FOR CUTTING THIN WAFERS USING THE ANGULAR INTERSECTION OF AT LEAST TWO YARN LAYERS
(FR) DISPOSITIF DE SCIAGE PAR FIL POUR LA DECOUPE DE TRANCHES FINES UTILISANT LE CROISEMENT ANGULAIRE D'AU MOINS DEUX NAPPES DE FILS
Abstract:
(EN) The invention concerns a slicing device using yarn comprising at least two yarn-guide cylinders (4) on which the yarn (2) is wound and by which it can be moved with a reciprocating or continuous motion pressed against a piece to be sliced (1) fixed on a supporting table (3). The yarn (2) is wound on the yarn-guides (4) so as to form at least two layers of yarns (2) intersecting with one or several non-null intersecting angles ($g(b)) and so as to pass in a straight line from one cylinder to the other. Adjusting means are provided for setting the angle of inclination between the moving direction (5) of the piece to be sliced and a line perpendicular to the plane of the yarn cylinder (4) axes so as to obtain strictly parallel slices. The intersection of the yarn layers (2) improves the quality of the slices obtained by facilitating the subsequent mechanical treatment operations of surfaces with crossed faults. Moreover, the angle of the yarn layers (2) reduces the shearing and torsional stresses on the support (3) of the piece to be sliced (1) when the slices are being cut.
(FR) Le dispositif de sciage par fil comprend au moins deux cylindres guide-fils (4) sur lesquels le fil (2) est enroulé et au moyen desquels il peut être déplacé selon un mouvement alternatif ou continu en appui contre une pièce à scier (1) fixée sur une table support (3). Le fil (2) est enroulé sur les guide-fils (4) de façon à former au moins deux nappes de fils (2) se croisant avec un ou plusieurs angles de croisement ($g(b)) non nul et de façon à passer en ligne droite d'un cylindre à l'autre. Des moyens de réglage sont prévus pour ajuster l'angle d'inclinaison entre la direction de déplacement (5) de la pièce à scier et une perpendiculaire au plan des axes des cylindres guide-fils (4) de façon à obtenir des tranches à faces rigoureusement parallèles. Le croisement des nappes de fils (2) améliore la qualité des tranches obtenues par une facilité accrue des opérations subséquentes de traitement mécanique des surfaces possédant des irrégularités croisées. De plus, l'angle des nappes de fils (2) diminue les efforts de cisaillement et de torsion sur le support (3) de la pièce à scier (1) lors de la découpe des tranches.
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Designated States: JP, KR, US
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP0980303US6371101JP2001524035