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Title:
CUTTING INSERT, AND BLADE TIP REPLACEMENT TYPE CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2011/138950
Kind Code:
A1
Abstract:
Provided is a cutting insert such that the generation of burrs is restricted, and that high-efficiency machining is made possible. The cutting insert (1) has a cutting blade which is formed at the intersection of a rake face and a flank face. The cutting blade comprises a corner section (20), a first main cutting blade (21) which is formed on one side of the corner section (20), and a second main cutting blade (22) which is formed on the other side of the corner section (20). The second main cutting blade (22) is provided with a downward inclined section (22a) which gradually tilts, as the same moves away from the corner section (20), from the surface side, among an upper surface and lower surface, whereon the rake face (11) is formed into the direction of the opposite surface side; and an upward inclined section (22b) which gradually tilts, as the same moves away from the corner section, from said opposite surface side into the direction of the surface side whereon the rake face (11) is formed. The downward inclined section is connected to the corner section. The upward inclined section is connected to the downward inclined section. At least the connection area between the upward inclined section and the downward inclined section has a relief section (24) which is curved in a concave manner.

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Inventors:
YOSHIDA SATORU (JP)
Application Number:
PCT/JP2011/060542
Publication Date:
November 10, 2011
Filing Date:
May 02, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TUNGALOY CORP (JP)
YOSHIDA SATORU (JP)
International Classes:
B23C5/20; B23C5/06
Foreign References:
JP2008302493A2008-12-18
JP2009208221A2009-09-17
JPH08323510A1996-12-10
JP2008036795A2008-02-21
JPH0852611A1996-02-27
Attorney, Agent or Firm:
TANI & ABE, p. c. (JP)
Patent business corporation A valley and Abe patent firm (JP)
Download PDF:
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Claims:



 
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