GB1062158A - Improvements relating to drills - Google Patents

Improvements relating to drills

Info

Publication number
GB1062158A
GB1062158A GB4652562A GB4652562A GB1062158A GB 1062158 A GB1062158 A GB 1062158A GB 4652562 A GB4652562 A GB 4652562A GB 4652562 A GB4652562 A GB 4652562A GB 1062158 A GB1062158 A GB 1062158A
Authority
GB
United Kingdom
Prior art keywords
drill
cutting
edge
drills
tip
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.)
Expired
Application number
GB4652562A
Inventor
Thomas Raine
William Maurice Lowe
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.)
METRO CUTANIT Ltd
Original Assignee
METRO CUTANIT Ltd
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 METRO CUTANIT Ltd filed Critical METRO CUTANIT Ltd
Priority to GB4652562A priority Critical patent/GB1062158A/en
Publication of GB1062158A publication Critical patent/GB1062158A/en
Expired 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/84—Steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main 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
    • B23B2251/50—Drilling tools comprising cutting inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)

Abstract

1,062,158. Drills. METRO-CUTANIT Ltd. Nov. 21, 1963 [Dec. 10, 1962], No. 46525/62. Heading B3C. A drill comprises a shank (1), Figs. 1 and 2 (not shown), a cutting tip (2) of tungsten carbide brazed to the shank, three cutting edges (3), (4), (5), and two auxiliary cutting edges (6), (7), on the tip. Edges (4), (5) having an included angle of substantially 90 degrees extend on one side of the drill axis, and edge (3) extends to the other side. In a modification, point (8) of the drill lies on the axis of the drill. In a further modification, Figs. (5), (6), (not shown), the cutting tip is held in a groove in a rectangular head (11), and has cutting edges (13), (14), (15). Edge (13) may extend to the radially outer edge of head (11), or a further cutting edge (19) may be provided.
GB4652562A 1962-12-10 1962-12-10 Improvements relating to drills Expired GB1062158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4652562A GB1062158A (en) 1962-12-10 1962-12-10 Improvements relating to drills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4652562A GB1062158A (en) 1962-12-10 1962-12-10 Improvements relating to drills

Publications (1)

Publication Number Publication Date
GB1062158A true GB1062158A (en) 1967-03-15

Family

ID=10441590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4652562A Expired GB1062158A (en) 1962-12-10 1962-12-10 Improvements relating to drills

Country Status (1)

Country Link
GB (1) GB1062158A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629514A1 (en) * 1988-04-04 1989-10-06 Vermont American Corp TREPAN BLADE FOR DRILLING IN MASONRY AND ROCK
WO2001038684A1 (en) * 1999-11-26 2001-05-31 Anglo Operations Limited Rotary drill bit insert
FR2840829A1 (en) * 2002-06-14 2003-12-19 Diager Drill tip has arched shape with concave and convex flanks connected by base face, two end edges and opposite base by cutting part with cutting edge and point

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629514A1 (en) * 1988-04-04 1989-10-06 Vermont American Corp TREPAN BLADE FOR DRILLING IN MASONRY AND ROCK
WO2001038684A1 (en) * 1999-11-26 2001-05-31 Anglo Operations Limited Rotary drill bit insert
US6454029B1 (en) 1999-11-26 2002-09-24 Danie Johannes Loots Rotary boring bit and borer
FR2840829A1 (en) * 2002-06-14 2003-12-19 Diager Drill tip has arched shape with concave and convex flanks connected by base face, two end edges and opposite base by cutting part with cutting edge and point
EP1386684A1 (en) * 2002-06-14 2004-02-04 Diager Cutting insert for drill bit and drill bit using it

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