Title:
SURFACE TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2023/085243
Kind Code:
A1
Abstract:
[Problem] Provided is a surface treatment method with which the formation of an oxide film is suppressed while the removal performance of the surface of an object to be treated is ensured by a simple process. [Solution] This surface treatment method involves removing a surface of an object O to be treated by moving a beam spot BS, obtained by condensing continuous-wave laser beams B on an irradiation target surface of the object, with respect to the irradiation target surface, wherein an irradiation time when the beam spot passes through one point on the irradiation target surface is at most 20 μs, and the relative velocity of the beam spot to the irradiation target surface is at least 3 m/s.
Inventors:
SUIZU YOSHIAKI (JP)
HARAGUCHI MANABU (JP)
HARAGUCHI MANABU (JP)
Application Number:
PCT/JP2022/041476
Publication Date:
May 19, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
TOYOKOH CO LTD (JP)
International Classes:
B23K26/36; B23K26/082
Foreign References:
| JP2018037572A | 2018-03-08 | |||
| JP2017077586A | 2017-04-27 | |||
| JP2021030243A | 2021-03-01 |
Attorney, Agent or Firm:
INADA Hiroaki et al. (JP)
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