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WO2009072200A1 - Small-diameter rotary processing tool - Google Patents

Small-diameter rotary processing tool Download PDF

Info

Publication number
WO2009072200A1
WO2009072200A1 PCT/JP2007/073525 JP2007073525W WO2009072200A1 WO 2009072200 A1 WO2009072200 A1 WO 2009072200A1 JP 2007073525 W JP2007073525 W JP 2007073525W WO 2009072200 A1 WO2009072200 A1 WO 2009072200A1
Authority
WO
WIPO (PCT)
Prior art keywords
shank
shaped part
small
radiuses
recessed
Prior art date
Application number
PCT/JP2007/073525
Other languages
French (fr)
Japanese (ja)
Inventor
Jiro Osawa
Shigetoshi Ukei
Minoru Natsume
Original Assignee
Osg Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osg Corporation filed Critical Osg Corporation
Priority to PCT/JP2007/073525 priority Critical patent/WO2009072200A1/en
Publication of WO2009072200A1 publication Critical patent/WO2009072200A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/011—Micro drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

As shown in the fig. 1, between a small-diameter tip part (14) and a shank (12), a connection part (30) is provided. The connection part (30) is composed of a recessed R-shaped part (32) connected smoothly to the rear end of a neck part (18) and curved outward with a fixed radius Ra and a projecting R-shaped part (34) connected smoothly with the front end of the shank (12) and curved inward with a fixed radius Rb. Moreover, the recessed R-shaped part (32) and the projecting R-shaped part (34) are connected directly at a position where the tangents of their arcs conform to each other. Therefore, while the axial direction length of the connection part (30) is kept to be comparatively short, variation in the radiuses of the respective boundary parts with the neck part (18) and the shank (12) can be reduced. This shortens the dimension L1 of the projection from the shank (12) to a blade part (16) to secure predetermined rigidity and to suppress stress concentration caused by the sudden variation in the radiuses of the boundary parts to improve breakage resistance strength.
PCT/JP2007/073525 2007-12-05 2007-12-05 Small-diameter rotary processing tool WO2009072200A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/073525 WO2009072200A1 (en) 2007-12-05 2007-12-05 Small-diameter rotary processing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/073525 WO2009072200A1 (en) 2007-12-05 2007-12-05 Small-diameter rotary processing tool

Publications (1)

Publication Number Publication Date
WO2009072200A1 true WO2009072200A1 (en) 2009-06-11

Family

ID=40717385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/073525 WO2009072200A1 (en) 2007-12-05 2007-12-05 Small-diameter rotary processing tool

Country Status (1)

Country Link
WO (1) WO2009072200A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249185A (en) * 2013-06-26 2014-12-31 三菱综合材料株式会社 End Mill
CN112399898A (en) * 2019-06-13 2021-02-23 住友电工硬质合金株式会社 Cutting tool
CN116352143A (en) * 2023-03-28 2023-06-30 深圳迈菲精密有限公司 Cutting tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257807A (en) * 1985-09-05 1987-03-13 Mitsubishi Metal Corp Drill
JP2003094226A (en) * 2001-09-21 2003-04-03 Hitachi Tool Engineering Ltd End mill having taper portion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257807A (en) * 1985-09-05 1987-03-13 Mitsubishi Metal Corp Drill
JP2003094226A (en) * 2001-09-21 2003-04-03 Hitachi Tool Engineering Ltd End mill having taper portion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249185A (en) * 2013-06-26 2014-12-31 三菱综合材料株式会社 End Mill
JP2015009285A (en) * 2013-06-26 2015-01-19 三菱マテリアル株式会社 End mill
CN112399898A (en) * 2019-06-13 2021-02-23 住友电工硬质合金株式会社 Cutting tool
CN116352143A (en) * 2023-03-28 2023-06-30 深圳迈菲精密有限公司 Cutting tool
CN116352143B (en) * 2023-03-28 2023-11-21 深圳迈菲精密有限公司 Cutting tool

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