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1. WO1996002352 - OPTICAL SYSTEM FOR POSITIONING LASER BEAMS IN A STRAIGHT OR ANGULAR POSITION

Publication Number WO/1996/002352
Publication Date 01.02.1996
International Application No. PCT/US1995/008765
International Filing Date 13.07.1995
Chapter 2 Demand Filed 13.02.1996
IPC
B23K 26/067 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
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
067Dividing the beam into multiple beams, e.g. multi-focusing
CPC
B23K 26/0608
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
0604by a combination of beams
0608in the same heat affected zone [HAZ]
B23K 26/067
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
067Dividing the beam into multiple beams, e.g. multifocusing
Applicants
  • LASER MACHINING, INC. [US/US]; 500 Laser Drive Somerset, WI 54025, US
Inventors
  • LAWSON, William, E.; US
Agents
  • SAWICKI, Peter, Z. ; Kinney & Lange, P.A. Suite 1500 625 4th Avenue South Minneapolis, MN 55415-1659, US
Priority Data
08/274,23913.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL SYSTEM FOR POSITIONING LASER BEAMS IN A STRAIGHT OR ANGULAR POSITION
(FR) SYSTEME OPTIQUE DE POSITIONNEMENT DE FAISCEAUX LASER DANS UNE POSITION VERTICALE OU ANGULAIRE
Abstract
(EN)
The present invention relates to an apparatus (100) for cutting a workpiece (114) comprising an energy source for providing a beam of energy (104) and a directing mechanism (106) for directing the beam of energy (104) from the energy source to a focal point (107). The beam of energy (104) is provided along an axis (113). The directing mechanism (106) includes a frame (122) that is mounted to the energy source. A first focusing mechanism (146) is provided to focus the beam of energy (104) to the focal point (107) that is along the axis (113). The first focusing mechanism (146) is mounted to the frame (122) between the energy source and the focal point (107). A first reflective mirror (156) is slidably mounted to the frame (122) between the energy source and the first focusing mechanism (146). The slidable mounting of the first reflective mirror (156) allows the first reflective mirror (156) to be moved into the path of the beam of energy (104) and thereby cause a first reflected beam portion (164, 166) to be formed. A second reflective mirror (170) is also mounted to the frame (122). The second reflective mirror (170) is positioned to reflect the first reflected beam portion (164, 166) and thereby form a second reflected beam portion (172, 174). A second focusing mechanism (176) for focusing the second reflected beam portion (172, 174) to the focal point (107) is mounted to the frame (122) between the second reflective mirror (170) and the focal point (107).
(FR)
La présente invention se rapporte à un appareil (100) de découpe d'une pièce (114) et comprend une source d'énergie amenant un faisceau d'énergie (104) et un mécanisme d'orientation (106) dirigeant le faisceau d'énergie (104) de la source d'énergie à un point focal (107). Le faisceau d'énergie (104) est amené le long d'un axe (113). Le mécanisme d'orientation (106) comprend un cadre (122) monté sur la source d'énergie. Un premier mécanisme de focalisation (146) permet de régler le faisceau d'énergie (104) par rapport au point focal (107) situé le long de l'axe (113). Le premier mécanisme de focalisation (146) est fixé sur le bâti (122) entre la source d'énergie et le point focal (107). Un premier miroir réfléchissant (156) est monté coulissant sur le cadre (122) entre la source d'énergie et le premier mécanisme de focalisation (146). Le montage coulissant du premier miroir réfléchissant (156) permet à celui-ci de se déplacer dans la trajectoire du faisceau d'énergie (104) et forme ainsi une première section de faisceau réfléchi (164, 166). Un second miroir réfléchissant (170 ) est également fixé au bâti (122). Ce second miroir réfléchissant (170) est positionné de façon à réfléchir la première section de faisceau réfléchi (164, 166) et à former ainsi une seconde section de faisceau réfléchi (172, 174). Un second mécanisme de focalisation (176) servant à régler la seconde section de faisceau réfléchi (172, 174) par rapport au point focal (107) est fixé au bâti (122) entre le second miroir réfléchissant (170) et le point focal (107).
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