Title:
ROTATING TOOL
Document Type and Number:
WIPO Patent Application WO/2020/090372
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a rotating tool comprising a high-performance breaker. This rotating tool is provided with a rotating tool body 10 and with an edge section 20 having a cutting edge which is formed of a polycrystalline diamond (PCD) or a cubic boron nitride sintered body (CBN) and which is provided to the rotating tool body 10. The rake face of the edge section 20 is provided with a breaker located near the cutting edge. The rotating tool has a configuration (i) and/or a configuration (ii) described below: (i) a cross-section of the breaker taken in the direction perpendicular to the cutting edge has a concave shape, and (ii) the cutting edge is tilted relative to the rotation axis of the rotating tool body 10, and the breaker has a recess which continuously becomes shallower toward an end, defined with respect to the outer peripheral direction of the rotating tool body 10 and/or the axial direction, of both ends of the breaker in the direction parallel to the cutting edge.
Inventors:
YAMADA YASUNARI (JP)
MINAMI TORU (JP)
KANDA YASUYUKI (JP)
MINAMI TORU (JP)
KANDA YASUYUKI (JP)
Application Number:
PCT/JP2019/039586
Publication Date:
May 07, 2020
Filing Date:
October 08, 2019
Export Citation:
Assignee:
KANEFUSA KNIFE & SAW (JP)
International Classes:
B23B27/20; B23B27/14; B23B51/00; B23C5/10; B23C5/16; B23D77/00
Domestic Patent References:
| WO2017090297A1 | 2017-06-01 | |||
| WO2016035490A1 | 2016-03-10 | |||
| WO2014046260A1 | 2014-03-27 |
Foreign References:
| JPH08294805A | 1996-11-12 | |||
| JPS59141519A | 1984-08-14 | |||
| JPH0362706U | 1991-06-19 | |||
| JPS54117590U | 1979-08-17 | |||
| JP2008543585A | 2008-12-04 | |||
| JPH04109805U | 1992-09-24 |
Attorney, Agent or Firm:
OHKAWA, Hiroshi (JP)
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