Title:
CUTTING TOOL HAVING PARTIALLY-REMOVED FILM FORMED THEREON
Document Type and Number:
WIPO Patent Application WO/2015/163644
Kind Code:
A1
Abstract:
The present invention relates to a cutting tool, which performs, like a drill or a ball end mill, cutting while rotating in a state in which the center of the tip end is in contact with a work material, and includes a wear-resistant layer formed at the tip end thereof, wherein a part of the wear-resistant layer is selectively removed through tip end polishing from the center of the tip end of the drill or the ball end mill to a predetermined area, so as to restrain micro-brittle wear generated in an ultra-low speed region, thus remarkably improving the cutting lifespan of the cutting tool such as the drill or the ball end mill.
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| JP5823316 | Drill tool for cutting castings |
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| WO/1993/002817 | METHOD OF MANUFACTURING AN INSERT DRILL |
Inventors:
AHN SEUNG-SU (KR)
PARK JE-HUN (KR)
KIM KYUNG-IL (KR)
KIM SUNG-HYUN (KR)
LEE SUNG-GU (KR)
AHN SUN-YONG (KR)
PARK JE-HUN (KR)
KIM KYUNG-IL (KR)
KIM SUNG-HYUN (KR)
LEE SUNG-GU (KR)
AHN SUN-YONG (KR)
Application Number:
PCT/KR2015/003875
Publication Date:
October 29, 2015
Filing Date:
April 17, 2015
Export Citation:
Assignee:
KORLOY INC (KR)
International Classes:
B23B51/02; B23C5/16
Foreign References:
| JP2001225216A | 2001-08-21 | |||
| JPH05337717A | 1993-12-21 | |||
| KR850009757U | 1985-12-05 | |||
| KR101190528B1 | 2012-10-16 | |||
| JPH08127863A | 1996-05-21 |
Attorney, Agent or Firm:
IAM PATENT FIRM (KR)
특허법인 아이엠 (KR)
특허법인 아이엠 (KR)
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