Title:
CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2020/240892
Kind Code:
A1
Abstract:
This cutting tool has a peripheral cutting edge (6) with a chip discharging groove (5) having a first flute groove (13) extending from the point surface to the rear end, and a second flute groove (14) formed by cutting off a point-side region of the first flute groove (13). The second flute groove (14) is formed in the circumferential direction from the second peripheral rake face (17) side of the first flute groove (13) until reaching a peripheral flank surface (8). This cutting tool is capable of ensuring good chip discharging performance and tool rigidity.
Inventors:
ENDO TAKAMASA (JP)
TAKANO MASAYUKI (JP)
CHIDA SATOSHI (JP)
TAKANO MASAYUKI (JP)
CHIDA SATOSHI (JP)
Application Number:
PCT/JP2019/047381
Publication Date:
December 03, 2020
Filing Date:
December 04, 2019
Export Citation:
Assignee:
NS TOOL CO LTD (JP)
International Classes:
B23C5/10
Domestic Patent References:
| WO2017038763A1 | 2017-03-09 |
Foreign References:
| JPH07204921A | 1995-08-08 | |||
| JP2006212744A | 2006-08-17 | |||
| JP2000288826A | 2000-10-17 | |||
| JP2012091306A | 2012-05-17 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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