Title:
INDEXABLE DRILL, CUTTING INSERT AND DRILL MAIN BODY
Document Type and Number:
WIPO Patent Application WO/2020/189698
Kind Code:
A1
Abstract:
In this indexable drill, a cutting insert (10) formed having a cutting blade (14) can be detachably attached to an insert attachment seat (6) of a drill main body (1). The insert attachment seat (6) is formed having a bottom surface (6a) which faces the tip of the drill main body (1), and a sidewall (6b) which extends towards the tip and faces the drill rotation direction (T). The cutting insert (10) is formed having a seated surface (15), which faces the back end of the drill main body (1) and is seated on the bottom surface (6a), a contact surface (16), which faces opposite of the drill rotation direction (T) and contacts the side surface (6b), a protrusion (17), which protrudes opposite of the drill rotation direction (T) on the tip side of the contact surface (16), and an attachment hole which passes from a tip flank surface (12) towards the seated surface (15).
Inventors:
USUI MASAHIRO (JP)
Application Number:
PCT/JP2020/011874
Publication Date:
September 24, 2020
Filing Date:
March 18, 2020
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B51/00; B23B51/02
Domestic Patent References:
| WO2011021275A1 | 2011-02-24 | |||
| WO2010089861A1 | 2010-08-12 |
Foreign References:
| JP2013146854A | 2013-08-01 | |||
| JP2002501441A | 2002-01-15 | |||
| US20060072976A1 | 2006-04-06 | |||
| JP2011005632A | 2011-01-13 | |||
| JP2005305643A | 2005-11-04 | |||
| JP2008500195A | 2008-01-10 | |||
| JP2012520777A | 2012-09-10 | |||
| JP2011005630A | 2011-01-13 | |||
| JP2019050081A | 2019-03-28 | |||
| JP2020025571A | 2020-02-20 | |||
| EP2408581A1 | 2012-01-25 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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