Title:
CUTTING INSERT AND CUTTING EDGE REPLACEABLE ROTARY CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2024/004865
Kind Code:
A1
Abstract:
This cutting insert (1) comprises a rake face (2), a seating face (3) that faces the rake face (2), a flank face (4) that connects the rake face (2) and the seating face (3), and a cutting edge (5) that is formed at the intersecting ridgeline between the rake face (2) and the flank face (4), wherein: the cutting edge (5) is configured from a straight-line main cutting edge (5b), a corner edge (5a), and a wiper edge (5c), in said order; a recess (6) is provided to the end of the main cutting edge (5b) that is opposite of the end connecting to the corner edge (5a); the wiper edge (5c) is formed in an arced shape and is connected by a tangent line to the corner edge (5a); and, where an extension line of the main cutting edge (5b) is L1, a tangent line of the wiper edge (5c) that is perpendicular to the extension line L1 of the main cutting edge (5b) is L2, and a tangent line of the wiper edge (5c) that passes through the end point P of the wiper edge (5c) which is toward the corner cutting edge (5a) is L3, the angle θ formed by the tangent line L2 and the tangent line L3 is within the range 0.010° ≤ θ ≤ 3.0° when viewed from the side facing the rake face (2).
Inventors:
INAGAKI FUMIHIKO (JP)
Application Number:
PCT/JP2023/023363
Publication Date:
January 04, 2024
Filing Date:
June 23, 2023
Export Citation:
Assignee:
MOLDINO TOOL ENGINEERING LTD (JP)
International Classes:
B23C5/20; B23B27/14; B23C5/06; B23C5/10
Domestic Patent References:
| WO2015129769A1 | 2015-09-03 |
Foreign References:
| JP7068616B1 | 2022-05-17 | |||
| JP2020175505A | 2020-10-29 | |||
| JP2003275919A | 2003-09-30 | |||
| EP2364803A2 | 2011-09-14 | |||
| CN113695652A | 2021-11-26 | |||
| JP2005103710A | 2005-04-21 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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