Title:
DRILL AND MANUFACTURING METHOD FOR CUT WORK-PIECE USING THE SAME
Document Type and Number:
Japanese Patent JP2016047577
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that a machine tool must be introduced additionally depending on a configuration of a passage for supplying coolant provided inside a drill main body, causing increase in manufacturing costs for cut work-pieces.SOLUTION: A drill according to one embodiment comprises: a bar-shaped drill main body comprising a cutting part having a cutting blade on the tip thereof, a shank part and a flange part; and a cylindrically-shaped attachment for cooling, to which the shank part is inserted, which contacts a rear end face of the flange part. The shank part has a notch part extending from a part inserted into the attachment to a rear end thereof; the attachment has a through-hole, opened toward an outer peripheral face and an inner peripheral face, through which coolant flows; and an opening part near the inner peripheral face in the through-hole is positioned on the notch part.SELECTED DRAWING: Figure 1
Inventors:
ISHI HIROHISA
Application Number:
JP2014173440A
Publication Date:
April 07, 2016
Filing Date:
August 28, 2014
Export Citation:
Assignee:
KYOCERA CORP
International Classes:
B23B51/06; B23B51/00; B23B51/12
Domestic Patent References:
JPH10337632A | 1998-12-22 | |||
JPS5225389U | 1977-02-22 | |||
JPH07314232A | 1995-12-05 | |||
JPH10337632A | 1998-12-22 | |||
JPH07314232A | 1995-12-05 |
Foreign References:
US3215443A | 1965-11-02 | |||
US3215443A | 1965-11-02 |
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