Title:
IRON-BASED SINTERED COMPACT, METHOD FOR LASER-MARKING SAME, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/093194
Kind Code:
A1
Abstract:
Provided is a method for laser-marking an iron-based sintered compact, the method comprising: a first step for forming, using a first laser beam, a plurality of dot-shaped concave portions having a predetermined depth in an area for an identification mark on the surface of an iron-based sintered compact; and a second step for flattening, using a second laser beam, the surface in the area for an identification mark except the dot-shaped concave portions, wherein the irradiation energy of the first laser beam per unit area is larger than the irradiation energy of the second laser beam per unit area.
More Like This:
| JPS5825890 | LASER WORKING DEVICE |
| JP2688026 | [Title of Invention] Laser Machining Method and Device |
Inventors:
TERAI HIROAKI (JP)
TAUCHI MASAYUKI (JP)
NAWACHI KENJI (JP)
TAUCHI MASAYUKI (JP)
NAWACHI KENJI (JP)
Application Number:
PCT/JP2018/040311
Publication Date:
May 16, 2019
Filing Date:
October 30, 2018
Export Citation:
Assignee:
SUMITOMO ELECTRIC SINTERED ALLOY LTD (JP)
International Classes:
B23K26/00; B22F3/24; B41M5/26; C22C33/02; C22C38/00
Foreign References:
| JPS60206130A | 1985-10-17 | |||
| JP2017014552A | 2017-01-19 | |||
| JP2008189956A | 2008-08-21 |
Attorney, Agent or Firm:
NISHIMA Hideaki et al. (JP)
Download PDF: