Title:
CUTTING INSERT AND CUTTING EDGE-REPLACEABLE ROTARY CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2016/080486
Kind Code:
A1
Abstract:
In this present invention, a side surface section (4) is configured from corner surface portions (13) and intermediate portions (14) each of which being arranged between the corner surface portions. Each corner surface portion (13) is provided with: a first corner side surface part (13a) which intersects at an obtuse angle (α) with a reference plane which is parallel to a middle plane M; and a second corner side surface part (13b) which intersects at an acute angle (β). Each intermediate portion (14) is configured from a side surface formed at a right angle with respect to the reference plane parallel to the middle plane (M). Furthermore, a third corner surface part (13c) which intersects at a right angle with the reference plane parallel to the middle plane (M) may be disposed between the first corner side surface part (13a) and the second corner side surface part (13b) of the corner surface portion.
Inventors:
MURA HISANORI (JP)
HIBATA TADAHIRO (JP)
MURATA TOMOHIRO (JP)
NOSHITA MASASHI (JP)
HIBATA TADAHIRO (JP)
MURATA TOMOHIRO (JP)
NOSHITA MASASHI (JP)
Application Number:
PCT/JP2015/082546
Publication Date:
May 26, 2016
Filing Date:
November 19, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI TOOL ENGINEERING LTD (JP)
International Classes:
B23C5/20; B23C5/06
Foreign References:
| US20100266353A1 | 2010-10-21 | |||
| JPS61148506U | 1986-09-12 | |||
| US20130004251A1 | 2013-01-03 | |||
| GB1142820A | 1969-02-12 | |||
| GB1171671A | 1969-11-26 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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