Title:
METHOD AND DEVICE FOR LASER CUTTING STAINLESS STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2017/154669
Kind Code:
A1
Abstract:
In this method for laser cutting a stainless steel sheet using a fibre laser or a direct diode laser, when a mixed gas of nitrogen gas and air is used as an assist gas, the oxygen concentration in the assist gas is adjusted to 0.06-0.5%. The oxygen concentration in the assist gas is more preferably adjusted to 0.1-0.3%. As a result of adjusting the oxygen concentration in the assist gas as described above, dross-free laser cutting can be achieved.
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Inventors:
SUGIYAMA AKIHIKO (JP)
WAKUI HIROTADA (JP)
MIZOGUCHI YUUYA (JP)
KUNIHIRO MASATO (JP)
NAGASE AYAKO (JP)
WAKUI HIROTADA (JP)
MIZOGUCHI YUUYA (JP)
KUNIHIRO MASATO (JP)
NAGASE AYAKO (JP)
Application Number:
PCT/JP2017/007790
Publication Date:
September 14, 2017
Filing Date:
February 28, 2017
Export Citation:
Assignee:
AMADA HOLDINGS CO LTD (JP)
International Classes:
B23K26/38; B23K26/14
Domestic Patent References:
| WO2014065256A1 | 2014-05-01 |
Foreign References:
| JP2007313545A | 2007-12-06 | |||
| JP2006346737A | 2006-12-28 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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