Title:
切削インサート、刃先交換式エンドミル
Document Type and Number:
Japanese Patent JP7260748
Kind Code:
B2
Abstract:
To provide a cutting insert in which a nick reaching a cutting blade is formed on a rake face and a groove opening to a flank face is formed on a seating surface, which can secure strength of the cutting insert so that damage such as defect can be prevented even if large cutting loads act thereon.SOLUTION: The cutting insert comprises rake faces 2, seating surfaces 3 and flank faces 4. Cutting blades 5 and 6 comprising circular arc-shape cutting blade parts 5a and 6a and linear cutting blade parts 5b and 6b are formed at crossing ridge-line parts between the rake faces 2 and the flank faces 4. Concave groove-like nicks 10 that reach the cutting blades 5 and 6 and open to the flank faces 4 are formed on the rake faces 2. Groove parts 8 having wall surfaces that can contact convex parts that protrude from a bottom surface of an insert mounting seat are formed on the seating faces 3 so as to open to the flank faces 4. Opening parts to the flank faces 4 of the nicks 10 are arranged at positions where the parts do not overlap with opening parts to the flank faces 4 of the groove parts 8 in a perspective view from the rake faces 2 side.SELECTED DRAWING: Figure 14
Inventors:
Kenji Nagabuchi
Yasuhiro Kiuchi
Yoshiyuki Kobayashi
Yasuhiro Kiuchi
Yoshiyuki Kobayashi
Application Number:
JP2019021984A
Publication Date:
April 19, 2023
Filing Date:
February 08, 2019
Export Citation:
Assignee:
Moldino Co., Ltd.
International Classes:
B23C5/20; B23C5/10
Domestic Patent References:
| JP2003340632A | ||||
| JP2018126822A |
Foreign References:
| US7309193 | ||||
| US20150375310 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Mitsuo Teramoto
Fumihiro Hosokawa
Kazunori Onami
Mitsuo Teramoto
Fumihiro Hosokawa
Kazunori Onami