REPLACEABLE-CUTTING-EDGE ROTARY CUTTING TOOL AND INSERT

In an indexable rotary cutting tool (6) of the present invention, a cutting edge portion (4) of an insert (5) includes a peripheral cutting edge (9), a bottom cutting edge (11), a cutting edge (13) of a corner R, and a chamfered surface (15), a radial rake angle (´) of the cutting edge (13) of the c...

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Bibliographic Details
Main Authors KIUCHI Yasuhiro, KOBAYASHI Yoshiyuki, INAGAKI Fumihiko, NAKAMIGAWA Takao, HAYASHI Yuuki
Format Patent
LanguageEnglish
French
German
Published 28.09.2022
Subjects
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MILLING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:In an indexable rotary cutting tool (6) of the present invention, a cutting edge portion (4) of an insert (5) includes a peripheral cutting edge (9), a bottom cutting edge (11), a cutting edge (13) of a corner R, and a chamfered surface (15), a radial rake angle (´) of the cutting edge (13) of the corner R has a negative value in an entire edge length region of the cutting edge (13) of the corner R, and the radial rake angle (´) becomes a minimum value at an intermediate portion located between a pair of boundary points (P, Q) in the cutting edge (13) of the corner R.
Bibliography:Application Number: EP20160865978