JPS57184616A - Drill - Google Patents

Drill

Info

Publication number
JPS57184616A
JPS57184616A JP6759181A JP6759181A JPS57184616A JP S57184616 A JPS57184616 A JP S57184616A JP 6759181 A JP6759181 A JP 6759181A JP 6759181 A JP6759181 A JP 6759181A JP S57184616 A JPS57184616 A JP S57184616A
Authority
JP
Japan
Prior art keywords
drill
rake face
margin section
major flank
assured
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
JP6759181A
Other languages
Japanese (ja)
Inventor
Shiro Morita
Akio Takizawa
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.)
Nachi Fujikoshi Corp
Original Assignee
Nachi Fujikoshi Corp
Fujikoshi 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 Nachi Fujikoshi Corp, Fujikoshi KK filed Critical Nachi Fujikoshi Corp
Priority to JP6759181A priority Critical patent/JPS57184616A/en
Publication of JPS57184616A publication Critical patent/JPS57184616A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/28—Details of hard metal, i.e. cemented carbide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23B2228/10—Coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/12—Cross sectional views of the cutting edges
    • B23B2251/127—Sharp cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/44—Margins, i.e. the narrow portion of the land which is not cut away to provide clearance on the circumferential surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

PURPOSE:To raise the dimensional precision in processing a hole and improve the abrasion resistance of a drill by forming a layer of hard coating with a specific thickness at least on the rake face of the groove face for the surface of a drill body except the major flank and the margin section. CONSTITUTION:A layer 4 of hard coating with a thickness of 0.3-20mum is formed at least on the inner rake face 1 of the groove face 8 for the surface of a drill body 6 except the major flank 2 and the margin section 3 in order to improve the abrasion resistance. According to this constitution, the margin section 3 of the drill is not coated, therefore, the dimensional precision such as the size of the drill outer diameter and the longitudinal clearance angle theta can be assured by grinding, and since the major flank 2 is also not coated, the sharpness of the cutting edge crossing the rake face 1 can be assured.
JP6759181A 1981-05-07 1981-05-07 Drill Pending JPS57184616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6759181A JPS57184616A (en) 1981-05-07 1981-05-07 Drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6759181A JPS57184616A (en) 1981-05-07 1981-05-07 Drill

Publications (1)

Publication Number Publication Date
JPS57184616A true JPS57184616A (en) 1982-11-13

Family

ID=13349304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6759181A Pending JPS57184616A (en) 1981-05-07 1981-05-07 Drill

Country Status (1)

Country Link
JP (1) JPS57184616A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175912A (en) * 1983-03-25 1984-10-05 Sumitomo Electric Ind Ltd Carbide drill
EP0127416A2 (en) * 1983-05-27 1984-12-05 Sumitomo Electric Industries Limited Cutting tool and the production thereof and use of the same
JPS61124314U (en) * 1985-01-19 1986-08-05
US4983079A (en) * 1987-12-14 1991-01-08 Mitsubishi Kinzoku Kabushiki Kaisha Twist drill
JPH04503924A (en) * 1990-07-27 1992-07-16 エムアーエス　マシーネンバウ　アクチエンゲゼルシヤフト chamfered cutlet
US5230593A (en) * 1987-12-14 1993-07-27 Mitsubishi Kinzoku Kabushiki Kaisha Twist drill
US5599144A (en) * 1995-06-23 1997-02-04 International Business Machines Corporation Low friction flute tungsten carbon microdrill
WO2005021827A2 (en) * 2003-08-28 2005-03-10 Dormer Tools (Sheffield) Limited Coated bore cutting tools
JP2007245297A (en) * 2006-03-16 2007-09-27 Mitsubishi Materials Corp Boring tool
US20090162152A1 (en) * 2006-08-31 2009-06-25 Naoya Omori Surface-coated cutting tool
JP2010058179A (en) * 2008-09-01 2010-03-18 Fuji Heavy Ind Ltd Cutting tool and method of manufacturing the same
JP2011104772A (en) * 2011-02-03 2011-06-02 Fuji Heavy Ind Ltd Cutting tool
DE102011076584A1 (en) * 2011-05-27 2012-11-29 Karnasch Professional Tools GmbH Cutting tool, useful for machining workpieces, comprises a base body that comprises cutting edges in a region of its free end, where the cutting edges extend radially outward starting from the center of the base body
EP3263256B1 (en) 2015-02-23 2019-07-31 Sumitomo Electric Industries, Ltd. Rotating tool
US20190247932A1 (en) * 2016-06-29 2019-08-15 Sumitomo Electric Hardmetal Corp. Cutting tool
WO2021078749A1 (en) * 2019-10-21 2021-04-29 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Tool part and method for producing a tool part of this kind

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55150941A (en) * 1979-05-09 1980-11-25 Mitsubishi Metal Corp Cutting tool of coated sintered hard alloy
JPS563117A (en) * 1979-06-25 1981-01-13 Mitsubishi Metal Corp Coated miniature drill made of hard alloy metal
JPS563118A (en) * 1979-06-25 1981-01-13 Mitsubishi Metal Corp Coated miniature drill made of hard alloy metal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55150941A (en) * 1979-05-09 1980-11-25 Mitsubishi Metal Corp Cutting tool of coated sintered hard alloy
JPS563117A (en) * 1979-06-25 1981-01-13 Mitsubishi Metal Corp Coated miniature drill made of hard alloy metal
JPS563118A (en) * 1979-06-25 1981-01-13 Mitsubishi Metal Corp Coated miniature drill made of hard alloy metal

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175912A (en) * 1983-03-25 1984-10-05 Sumitomo Electric Ind Ltd Carbide drill
JPS6133645B2 (en) * 1983-03-25 1986-08-04 Sumitomo Electric Industries
EP0127416A2 (en) * 1983-05-27 1984-12-05 Sumitomo Electric Industries Limited Cutting tool and the production thereof and use of the same
JPS61124314U (en) * 1985-01-19 1986-08-05
US4983079A (en) * 1987-12-14 1991-01-08 Mitsubishi Kinzoku Kabushiki Kaisha Twist drill
US5230593A (en) * 1987-12-14 1993-07-27 Mitsubishi Kinzoku Kabushiki Kaisha Twist drill
JPH04503924A (en) * 1990-07-27 1992-07-16 エムアーエス　マシーネンバウ　アクチエンゲゼルシヤフト chamfered cutlet
US5599144A (en) * 1995-06-23 1997-02-04 International Business Machines Corporation Low friction flute tungsten carbon microdrill
GB2406814B (en) * 2003-08-28 2005-11-30 Dormer Tools Coated bore cutting tools
WO2005021827A2 (en) * 2003-08-28 2005-03-10 Dormer Tools (Sheffield) Limited Coated bore cutting tools
US7922428B2 (en) 2003-08-28 2011-04-12 Dormer Tools Limited Coated bore cutting tools
WO2005021827A3 (en) * 2003-08-28 2005-06-16 Dormer Tools Sheffield Ltd Coated bore cutting tools
JP2007245297A (en) * 2006-03-16 2007-09-27 Mitsubishi Materials Corp Boring tool
US8231312B2 (en) * 2006-08-31 2012-07-31 Sumitomo Electric Hardmetal Corp. Surface-coated cutting tool
US20090162152A1 (en) * 2006-08-31 2009-06-25 Naoya Omori Surface-coated cutting tool
JP2010058179A (en) * 2008-09-01 2010-03-18 Fuji Heavy Ind Ltd Cutting tool and method of manufacturing the same
JP2011104772A (en) * 2011-02-03 2011-06-02 Fuji Heavy Ind Ltd Cutting tool
DE102011076584A1 (en) * 2011-05-27 2012-11-29 Karnasch Professional Tools GmbH Cutting tool, useful for machining workpieces, comprises a base body that comprises cutting edges in a region of its free end, where the cutting edges extend radially outward starting from the center of the base body
EP3263256B1 (en) 2015-02-23 2019-07-31 Sumitomo Electric Industries, Ltd. Rotating tool
US20190247932A1 (en) * 2016-06-29 2019-08-15 Sumitomo Electric Hardmetal Corp. Cutting tool
US10882117B2 (en) * 2016-06-29 2021-01-05 Sumitomo Electric Hardmetal Corp. Cutting tool
WO2021078749A1 (en) * 2019-10-21 2021-04-29 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Tool part and method for producing a tool part of this kind

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