JPS57144604A - Surface covered throw away tip - Google Patents

Surface covered throw away tip

Info

Publication number
JPS57144604A
JPS57144604A JP3036481A JP3036481A JPS57144604A JP S57144604 A JPS57144604 A JP S57144604A JP 3036481 A JP3036481 A JP 3036481A JP 3036481 A JP3036481 A JP 3036481A JP S57144604 A JPS57144604 A JP S57144604A
Authority
JP
Japan
Prior art keywords
chamfered part
tip
cutting edge
roundness
chamfer
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP3036481A
Other languages
Japanese (ja)
Inventor
Tatsuji Kinukawa
Hiroshi Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Tokushu Togyo KK
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
Nippon Tokushu Togyo KK
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 NGK Spark Plug Co Ltd, Nippon Tokushu Togyo KK filed Critical NGK Spark Plug Co Ltd
Priority to JP3036481A priority Critical patent/JPS57144604A/en
Publication of JPS57144604A publication Critical patent/JPS57144604A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
    • B23B27/145—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/20—Top or side views of the cutting edge
    • B23B2200/202—Top or side views of the cutting edge with curved cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/24—Cross section of the cutting edge
    • B23B2200/242—Cross section of the cutting edge bevelled or chamfered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
    • B23B2224/04—Aluminium oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
    • B23B2224/28—Titanium carbide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
    • B23B2224/36—Titanium nitride

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

PURPOSE:To establish chamfer of about 0.05mm. or more accurately without causing drag to the upper or side surface by forming hard wear resistant ceramic stratum on the surface of carbide tip including at least the cutting edge. CONSTITUTION:The cutting edge of the tip constituted from a chamfered part 3, boundary portion of this chamfered part 3 and upper face, portions with roundness 5 at the boundary of chamfered part 3 and the side face. The width (a) of the chamfered part shall be about 0.05-0.20mm. and preferably 0.05-0.10mm.. And on the surface of this carbite tip including at least the cutting edge, covering layer of such as TiC, TiN, Al2O3 or AlON will be prepared. Thus chamfering of about 0.05mm. or more can accurately be preared without causing drags to the upper surface and/or the side surface. This tip has very high resistance against the crack and wear in comparison with the conventional tips for only chamfer or roundness.
JP3036481A 1981-03-03 1981-03-03 Surface covered throw away tip Pending JPS57144604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3036481A JPS57144604A (en) 1981-03-03 1981-03-03 Surface covered throw away tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3036481A JPS57144604A (en) 1981-03-03 1981-03-03 Surface covered throw away tip

Publications (1)

Publication Number Publication Date
JPS57144604A true JPS57144604A (en) 1982-09-07

Family

ID=12301804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3036481A Pending JPS57144604A (en) 1981-03-03 1981-03-03 Surface covered throw away tip

Country Status (1)

Country Link
JP (1) JPS57144604A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59232711A (en) * 1983-06-14 1984-12-27 Toshiba Tungaloy Co Ltd End mill
EP1093875A1 (en) * 1998-10-22 2001-04-25 Sumitomo Electric Industries, Ltd. Cutting insert with polycrystalline hard sintered material
JP2009274523A (en) * 2008-05-13 2009-11-26 Nissin Kogyo Co Ltd Apparatus for detecting piston position in master cylinder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158775A (en) * 1978-06-05 1979-12-14 Toshiba Tungaloy Co Ltd Compound coated cutting tool

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54158775A (en) * 1978-06-05 1979-12-14 Toshiba Tungaloy Co Ltd Compound coated cutting tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59232711A (en) * 1983-06-14 1984-12-27 Toshiba Tungaloy Co Ltd End mill
EP1093875A1 (en) * 1998-10-22 2001-04-25 Sumitomo Electric Industries, Ltd. Cutting insert with polycrystalline hard sintered material
JP2009274523A (en) * 2008-05-13 2009-11-26 Nissin Kogyo Co Ltd Apparatus for detecting piston position in master cylinder

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