Title:
LASER MACHINING DEVICE AND LASER MACHINING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/008827
Kind Code:
A1
Abstract:
A machining head (35) emits a laser beam for cutting a stainless steel metal sheet (W). A moving mechanism causes the machining head (35) to be moved relative to a surface of the metal sheet (W). A beam vibrating mechanism causes the laser beam to vibrate in a parallel direction to a direction in which the cutting of the metal sheet (W) proceeds. In a machining condition database (70), with respect to a maximum moving speed enabling the cutting of the metal sheet (W), a single specific vibration frequency enabling the cutting of the metal sheet (W) is set, and, with respect to a moving speed more than or equal to a minimum moving speed enabling the cutting of the metal sheet (W) and less than the maximum moving speed, a plurality of vibration frequencies from a maximum frequency to a minimum frequency enabling the cutting of the metal sheet (W) are set. An NC device (50) controls the beam vibrating mechanism so as to cause the laser beam to vibrate at the vibration frequencies set in the machining condition database (70).
Inventors:
YAMANASHI TAKAAKI (JP)
FUNAKI KOJI (JP)
SUGIYAMA AKIHIKO (JP)
FUNAKI KOJI (JP)
SUGIYAMA AKIHIKO (JP)
Application Number:
PCT/JP2019/023394
Publication Date:
January 09, 2020
Filing Date:
June 13, 2019
Export Citation:
Assignee:
AMADA HOLDINGS CO LTD (JP)
International Classes:
B23K26/38; B23K26/082
Domestic Patent References:
| WO2015156119A1 | 2015-10-15 |
Foreign References:
| JP2007021579A | 2007-02-01 | |||
| JP2005288541A | 2005-10-20 | |||
| JP2018128772A | 2018-08-16 |
Other References:
"Shaping the beam for the best cut", THE FABRICATOR, vol. 67, January 2017 (2017-01-01)
See also references of EP 3819070A4
See also references of EP 3819070A4
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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