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1. (US6163010) Method and apparatus for laser cutting materials

Office : United States of America
Application Number: 09269494 Application Date: 24.04.1998
Publication Number: 6163010 Publication Date: 19.12.2000
Grant Number: 6163010 Grant Date: 19.12.2000
Publication Kind : A
Prior PCT appl.: Application Number:US96017226 ; Publication Number: Click to see the data
IPC:
B23K 26/08
B23K 26/00
B23K 26/02
B23K 26/14
B23K 26/03
B23K 26/06
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
08
Devices involving relative movement between laser beam and workpiece
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
02
Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
14
using a flow, e.g. a jet of gas, in conjunction with the laser beam
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
02
Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
03
Observing the workpiece
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26
Working by laser beam, e.g. welding, cutting, boring
02
Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
06
Shaping the laser beam, e.g. by masks or multi-focusing
CPC:
B23K 26/0626
B23K 26/032
B23K 26/06
B23K 26/064
B23K 26/0643
B23K 26/0648
B23K 26/0665
B23K 26/123
B23K 26/14
B23K 26/1435
B23K 26/1436
B23K 26/1462
B23K 26/1476
B23K 26/40
B23K 2103/05
B23K 2103/10
B23K 2103/12
B23K 2103/172
B23K 2103/38
B23K 2103/50
B23K 2103/52
Applicants: E. I. du Pont de Nemours and Company
Inventors: Kobsa Henry
Priority Data: US96017226 25.10.1996 WO
Title: (EN) Method and apparatus for laser cutting materials
Abstract: front page image
(EN)

Laser cutting of workpieces according to prior art results in heat affected zones (HAZ) of signiftcant thickness at the cut surface, which show seriously disturbed texture and/or microcracks. The HAZ is diminished by using a laser system with high beam quality and high brightness.


Also published as:
EP0857098JPH11513935CA2234895KR1019990067086WO/1997/015417