EDGE REPLACEABLE CUTTING TOOL

Japanese Patent JP2015168024

A

PROBLEM TO BE SOLVED: To make it possible to supply coolant even if a cutting insert is clamped by a clamp screw and to efficiently discharge the supplied coolant to an edge or a cutting region.SOLUTION: A clamp screw hole 2B that communicates with a coolant supply hole 2C and into which a clamp screw 8 of a clamp mechanism 7 is screwed is formed in an insert attachment seat 5 of a tool body 1, a through-hole 6D into which the clamp screw 8 is inserted is formed in the insert body 6A, a cutting insert 6 is attached to the insert attachment seat 5 by pressing a pressed surface 6C of the cutting insert 6 in which the through-hole 6D is formed, an edge 6B is formed on the pressed surface 6C, a screw groove portion 8D extending in a screw center direction C is formed in a screw shaft portion 8A of the clamp screw 8, and this screw groove portion 8D communicates with a coolant discharge groove portion 9D formed in at least one of the pressed surface 6C and a pressing surface of the clamp mechanism 7 pressing the pressed surface 6C.

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TAKAGI YUJI
ISHIKAWA YOICHI

JP2014043944A

September 28, 2015

March 06, 2014

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MITSUBISHI MATERIALS CORP

B23B27/10; B23B27/00

Masatake Shiga
Mitsuo Teramoto
Yasushi Matsunuma
Fumihiro Hosokawa
Kazunori Onami

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