Electric heating – Metal heating – By arc
Reexamination Certificate
2007-11-13
2007-11-13
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
C219S121840
Reexamination Certificate
active
10486549
ABSTRACT:
A method and a device for producing holes in workpieces by using at least one laser beam, in particular a short-pulse or ultrashort-pulse laser beam, whereby a process gas is supplied to the point of contact of the laser beam with the workpiece. At least one parameter of the process gas, i.e., its composition, pressure, volume flow, for example, is selected and the process gas is supplied to the interaction zone between the laser beam and the workpiece in such a way that the hole produced by the laser beam has a desired quality (hole geometry, reduced ablation residues, or none at all, etc.).
REFERENCES:
patent: 3601576 (1971-08-01), Schlafli et al.
patent: 3742182 (1973-06-01), Saunders
patent: 4220842 (1980-09-01), Stürmer et al.
patent: 4441008 (1984-04-01), Chan
patent: 4945207 (1990-07-01), Arai
patent: 5374803 (1994-12-01), Yamada
patent: 5607606 (1997-03-01), Mori et al.
patent: 5763855 (1998-06-01), Shioji
patent: 6204475 (2001-03-01), Nakata et al.
patent: 6303901 (2001-10-01), Perry et al.
patent: 2002/0170891 (2002-11-01), Boyle et al.
patent: 197 45 280 (1999-04-01), None
patent: 0 352 326 (1990-01-01), None
patent: 0 635 331 (1995-01-01), None
patent: 0 985 484 (2000-03-01), None
patent: 64-57994 (1989-03-01), None
patent: 2001-18082 (2001-01-01), None
patent: WO 02/076666 (2002-10-01), None
Sun et al., “Inert Gas Beam Delivery for Ultrafast Laser Micromachining at Ambient Pressure”, Journal of Applied Physics, American Institute of Physics, New York, vol. 89, No. 12, Jun. 15, 2001.
“Gase für Bearbeitungslaser”, Laser Magazin Jun. 1995, pp. 5-7.
Sun, J. et al. “Inert Gas Beam Delivery For Ultrafast Laser Micromachining at Ambient Pressure”, Journal of Applied Physics, American Institute of Physics, New York, vol. 89, No. 12, Jun. 15, 2001.
Hansmann, M. (u.a.): Flexibles Gasversorgungssystem für die Lasermaterialbearbeitung. IN: wt Werkstattstechnik, 1987, pp. 260-264.
Müller, R. (u.a.): Die Bedeutung der Gasführung beim Laserstrahlschneiden von kurzglasfaserverstärkten Verbundwerkstoffen.IN: Laser und Optoelektronikm 1990, H. 3, pp. 46-53.
Callies Gert
Willert Markus
Evans Geoffrey S.
Kenyon & Kenyon LLP
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