JPS55125913A - Brazed drill of super hard alloy chip having covering layer - Google Patents

Brazed drill of super hard alloy chip having covering layer

Info

Publication number
JPS55125913A
JPS55125913A JP3346279A JP3346279A JPS55125913A JP S55125913 A JPS55125913 A JP S55125913A JP 3346279 A JP3346279 A JP 3346279A JP 3346279 A JP3346279 A JP 3346279A JP S55125913 A JPS55125913 A JP S55125913A
Authority
JP
Japan
Prior art keywords
layer
drill
thickness
wear resistance
hard alloy
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.)
Granted
Application number
JP3346279A
Other languages
Japanese (ja)
Other versions
JPS6247126B2 (en
Inventor
Takeshi Itabane
Shotaro Matsumoto
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP3346279A priority Critical patent/JPS55125913A/en
Publication of JPS55125913A publication Critical patent/JPS55125913A/en
Publication of JPS6247126B2 publication Critical patent/JPS6247126B2/ja
Granted 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
    • B23B2224/00—Materials of tools or workpieces composed of a compound including a metal
    • B23B2224/20—Tantalum 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
    • B23B2224/28—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
    • B23B2224/32—Titanium carbide nitride (TiCN)
    • 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
    • B23B2228/105—Coatings with specified thickness

Landscapes

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

Abstract

PURPOSE:To eliminate local difference of wear resistance over the whole surface except the grip part of a tool steel drill body and to scheme to obtain uniform wear resistance on each drill part by covering with the covering layer in multi layer, and to obtain a long life of usage of drill. CONSTITUTION:The whole of the tool steel body except super hard alloy chip, brazed part, and grip part is covered with a covering layer which has the thickness of layer of 0.5-7mum and is constituted of a single layer or multi layer selected out of the group comprised from carbide, nitride, and oxide of titanium, and the solid solution having two kinds or more of the substance described above, and further aluminium oxide. If the thickness of layer is less than 0.5mm, wear resistance is inferior, and on the other hand, if the thickness is more than 7mum, the toughness of drill reduces, so the thickness of layer is restricted to the values described above.
JP3346279A 1979-03-22 1979-03-22 Brazed drill of super hard alloy chip having covering layer Granted JPS55125913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3346279A JPS55125913A (en) 1979-03-22 1979-03-22 Brazed drill of super hard alloy chip having covering layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3346279A JPS55125913A (en) 1979-03-22 1979-03-22 Brazed drill of super hard alloy chip having covering layer

Publications (2)

Publication Number Publication Date
JPS55125913A true JPS55125913A (en) 1980-09-29
JPS6247126B2 JPS6247126B2 (en) 1987-10-06

Family

ID=12387197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3346279A Granted JPS55125913A (en) 1979-03-22 1979-03-22 Brazed drill of super hard alloy chip having covering layer

Country Status (1)

Country Link
JP (1) JPS55125913A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5621711A (en) * 1979-07-24 1981-02-28 Sumitomo Electric Ind Ltd Drilling tool
US4642003A (en) * 1983-08-24 1987-02-10 Mitsubishi Kinzoku Kabushiki Kaisha Rotary cutting tool of cemented carbide
KR100444870B1 (en) * 2002-07-31 2004-08-18 현대자동차주식회사 Radiator cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5621711A (en) * 1979-07-24 1981-02-28 Sumitomo Electric Ind Ltd Drilling tool
US4642003A (en) * 1983-08-24 1987-02-10 Mitsubishi Kinzoku Kabushiki Kaisha Rotary cutting tool of cemented carbide
KR100444870B1 (en) * 2002-07-31 2004-08-18 현대자동차주식회사 Radiator cleaner

Also Published As

Publication number Publication date
JPS6247126B2 (en) 1987-10-06

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