Title:
INDEXABLE DRILL
Document Type and Number:
WIPO Patent Application WO/2019/031737
Kind Code:
A1
Abstract:
The present invention relates to an indexable drill (100), and includes a tip cutting edge part comprising a thinning part cutting edge (10) and a flute part cutting edge (20) when viewed from the side, wherein the thinning part cutting edge (10) and the flute part cutting edge (20) are formed to have different contour shapes such that centering is improved when entering at an early stage of machining, a cutting load in an entering direction is reduced, and chip processability is improved.
Inventors:
KIM SUNG HYUN (KR)
SON HONG SEUNG (KR)
KIM HYO SAN (KR)
KIM YOUNG HEUM (KR)
SON HONG SEUNG (KR)
KIM HYO SAN (KR)
KIM YOUNG HEUM (KR)
Application Number:
PCT/KR2018/008459
Publication Date:
February 14, 2019
Filing Date:
July 26, 2018
Export Citation:
Assignee:
KORLOY INC (KR)
International Classes:
B23B51/02; B23B51/06
Foreign References:
| KR100654942B1 | 2006-12-08 | |||
| KR101406612B1 | 2014-06-11 | |||
| KR20060060829A | 2006-06-07 | |||
| KR101014027B1 | 2011-02-14 | |||
| US20160074944A1 | 2016-03-17 |
Attorney, Agent or Firm:
YOON, Yu Kwang et al. (KR)
Download PDF: