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1. WO2013031778 - CUTTING METHOD FOR REINFORCED GLASS PLATE AND REINFORCED GLASS PLATE CUTTING DEVICE

Publication Number WO/2013/031778
Publication Date 07.03.2013
International Application No. PCT/JP2012/071719
International Filing Date 28.08.2012
IPC
C03B 33/09 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
33Severing cooled glass
09by thermal shock
B23K 26/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
B23K 26/38 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
36Removing material
38by boring or cutting
B28D 5/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
DWORKING STONE OR STONE-LIKE MATERIALS
5Fine working of gems, jewels, crystals, e.g. of semiconductor material; Apparatus therefor
C03C 21/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
21Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
CPC
B23K 2103/50
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2103Materials to be soldered, welded or cut
50Inorganic material, e.g. metals, not provided for in B23K2103/02B23K2103/26
B23K 2103/54
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2103Materials to be soldered, welded or cut
50Inorganic material, e.g. metals, not provided for in B23K2103/02B23K2103/26
54Glass
B23K 2103/56
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2103Materials to be soldered, welded or cut
50Inorganic material, e.g. metals, not provided for in B23K2103/02B23K2103/26
56semiconducting
B23K 26/0006
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
0006taking account of the properties of the material involved
B23K 26/032
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
03Observing, e.g. monitoring, the workpiece
032using optical means
B23K 26/0622
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
06Shaping the laser beam, e.g. by masks or multi-focusing
062by direct control of the laser beam
0622by shaping pulses
Applicants
  • 旭硝子株式会社 Asahi Glass Company, Limited [JP]/[JP] (AllExceptUS)
  • 齋藤 勲 SAITO Isao [JP]/[JP] (UsOnly)
  • 岩永 泰成 IWANAGA Yasunari [JP]/[JP] (UsOnly)
Inventors
  • 齋藤 勲 SAITO Isao
  • 岩永 泰成 IWANAGA Yasunari
Agents
  • 濱田 百合子 HAMADA Yuriko
Priority Data
2011-18904831.08.2011JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CUTTING METHOD FOR REINFORCED GLASS PLATE AND REINFORCED GLASS PLATE CUTTING DEVICE
(FR) PROCÉDÉ ET DISPOSITIF DE DÉCOUPE DE PLAQUES EN VERRE ARMÉ
(JA) 強化ガラス板の切断方法、および強化ガラス板切断装置
Abstract
(EN)
The present invention relates to a cutting method for a reinforced glass plate (10). The reinforced glass plate (10), which has a front surface layer (13) and a back surface layer (15) having residual compressive stress and also has an intermediate layer (17) having internal residual tensile stress formed between the front surface layer (13) and the back surface layer (15) is cut by moving an irradiation region (22) of laser light. Furthermore, when the cutting of the reinforced glass plate (10) is started, thermal stress that induces the occurrence of a crack is exerted on the starting position for cutting, and after generating a crack in the starting position for cutting and simultaneously inhibiting elongation of the crack, cutting of the reinforced glass plate (10) is carried out while inhibiting elongation of the crack by the internal residual tensile stress of the intermediate layer (17).
(FR)
Cette invention concerne un procédé de découpe de plaques en verre armé (10). La plaque en verre armé (10), qui comprend une couche de surface avant (13) et une couche de surface arrière (15) ayant une contrainte résiduelle de compression et une couche intermédiaire (17) ayant une contrainte résiduelle interne de traction formée entre la couche de surface avant (13) et la couche de surface arrière (15), est découpée par déplacement de la région d'irradiation (22) d'une lumière laser. De plus, quand la découpe de la plaque en verre armé (10) commence, une contrainte thermique qui induit l'apparition d'une fissure s'exerce à la position de départ de la découpe, et après génération de ladite fissure à la position de départ de la découpe et inhibition simultanée de la propagation de ladite fissure, la découpe de la plaque en verre armé (10) est mise en œuvre, la propagation de la fissure étant inhibée par la contrainte résiduelle interne de traction de la couche intermédiaire (17).
(JA)
本発明は強化ガラス板10の切断方法に関し、残留圧縮応力を有する表面層13および裏面層15と、当該表面層13および裏面層15との間に形成され、内部残留引張応力を有する中間層17とを有する強化ガラス板10を、レーザ光の照射領域22を移動することで切断する。そして、強化ガラス板10の切断を開始する際、クラックの発生を誘発する熱応力を切断開始位置に作用させ、切断開始位置においてクラックを発生させると同時にクラックの伸展を抑制した後、中間層17の内部残留引張応力によるクラックの伸展を抑制しながら強化ガラス板10を切断する。
Also published as
DE1120120036271
DE112012003627
Latest bibliographic data on file with the International Bureau