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Title:
LASER PROCESSING DEVICE AND LASER PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/002736
Kind Code:
A1
Abstract:
This laser processing device comprises: a laser light source unit that emits a laser beam onto the surface of a steel sheet that is conveyed in a preset conveying direction; a first nozzle that spurts, parallel to the optical axis direction of the laser beam, gas toward an irradiation site of the laser beam; and a dust collection mechanism unit that is provided only on either the upstream side or the downstream side of the irradiation site in the conveying direction and that collects, from a dust collection port, laser spatter generated from the irradiation site.

Inventors:
YAMADA YOSHIHIRO (JP)
IMAI TAKESHI (JP)
YAJIMA DAIRI (JP)
HAMAMURA HIDEYUKI (JP)
HIROTA YOSHIAKI (JP)
Application Number:
PCT/JP2022/019419
Publication Date:
January 26, 2023
Filing Date:
April 28, 2022
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B23K26/16
Foreign References:
JPS63101186U1988-07-01
JPH09192876A1997-07-29
JPS54155947A1979-12-08
JP2020138227A2020-09-03
JP2002336986A2002-11-26
JP2011156541A2011-08-18
JPS57203720A1982-12-14
JP2019509394A2019-04-04
JPS58187290A1983-11-01
KR20170011860A2017-02-02
KR101626601B12016-06-01
CN202226886U2012-05-23
JPS57203720A1982-12-14
JP2019509394A2019-04-04
KR20170011860A2017-02-02
KR001626601B1
JP2020138227A2020-09-03
JPS58187290B1
CN202226886U2012-05-23
JPS58187290A1983-11-01
JP2021120919A2021-08-19
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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