Title:
所定の数の左巻き及び右巻きの螺旋溝及び端面切断刃を有する回転切断工具
Document Type and Number:
Japanese Patent JP6412272
Kind Code:
B2
Abstract:
A rotary cutting tool (20), having a longitudinal axis (A), includes cutting and mounting portions (22, 24). The cutting portion (22) includes an end face surface (28) and a peripheral surface (30) extending therefrom. The peripheral surface (30) includes respective pluralities of main and auxiliary flutes (32, 34) that extend helically with opposite hand about the longitudinal axis (A). The cutting portion (22) includes a plurality of evenly circumferentially distributed end gashes (42) and a plurality of end face cutting teeth (48). The number of main flutes (32) and auxiliary flutes (34) are different, each being wholly divisible by, and greater than, the number of end face cutting teeth (48). In each cross sectional view of the cutting portion (22) an imaginary contour line (LC) defined by a peripheral contour (PC) of the peripheral surface of one of the end face cutting teeth (48) is in rotationally aligned relationship, about the longitudinal axis (A), with the peripheral contour (PC) of the peripheral surfaces (30) of all other end face cutting teeth (48).
Inventors:
Schipelman Leonide
Segal Igor
Segal Igor
Application Number:
JP2017531596A
Publication Date:
October 24, 2018
Filing Date:
December 15, 2014
Export Citation:
Assignee:
Iscal limited
International Classes:
B23C5/10; B23C5/00
Domestic Patent References:
| JP2131810A |
Foreign References:
| US20140356083 | ||||
| WO2013160692A1 | ||||
| US5626444 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
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