Electric heating – Metal heating – By arc
Reexamination Certificate
2007-08-21
2007-08-21
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
C219S121640, C219S121730
Reexamination Certificate
active
10548999
ABSTRACT:
A laser welding process of the present invention comprises the steps of allowing a laser beam outputted from a laser beam generator to enter into an optical fiber through a light-introducing optical unit, and applying the laser beam exiting from the optical fiber to a weld zone through a light-delivering optical unit. The laser welding process is characterized in that the optical fiber has a core diameter set to be within 100 μm, a numeral aperture value for entrance of light into the optical fiber is set to be equal to or smaller than 0.05, a numeral aperture value for exiting of light from the optical fiber is set to be equal to or smaller than 0.1, and an energy of a one-pulse laser beam applied from the light-delivering optical unit is set at a value equal to or smaller than 1 joule.
REFERENCES:
patent: 4564736 (1986-01-01), Jones et al.
patent: 5938952 (1999-08-01), Lin et al.
patent: 6990136 (2006-01-01), Akiyama et al.
patent: 2003/0138203 (2003-07-01), Imakado et al.
patent: 2005/0121427 (2005-06-01), Mikata et al.
patent: 8-267264 (1996-10-01), None
patent: 8-321651 (1996-12-01), None
patent: 2000-321470 (2000-11-01), None
patent: 2003-88984 (2003-03-01), None
patent: 2003-285189 (2003-10-01), None
Nagashima Takahiro
Nakayama Shin-ichi
Evans Geoffrey S.
Koda & Androlia
Miyachi Technos Corporation
LandOfFree
Laser welding method and laser welding device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser welding method and laser welding device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser welding method and laser welding device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3890569