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GB806406A - Cutting inserts for rock drill bits - Google Patents

Cutting inserts for rock drill bits

Info

Publication number
GB806406A
GB806406A GB18843/55A GB1884355A GB806406A GB 806406 A GB806406 A GB 806406A GB 18843/55 A GB18843/55 A GB 18843/55A GB 1884355 A GB1884355 A GB 1884355A GB 806406 A GB806406 A GB 806406A
Authority
GB
United Kingdom
Prior art keywords
granules
hard metal
matrix
zone
rock drill
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
GB18843/55A
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.)
Sandvik AB
Original Assignee
Sandvikens Jernverks AB
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 Sandvikens Jernverks AB filed Critical Sandvikens Jernverks AB
Publication of GB806406A publication Critical patent/GB806406A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Earth Drilling (AREA)

Abstract

806,406. Percussive tools. SANDVIKENS JERNVERKS A. B. June 29, 1955 [June 29, 1954], No. 18843/55. Drawings to Specification. Class 124. A rock drill cutting insert comprises a zone consisting of discrete granules of relatively hard, frit-grain hard metal embedded in a matrix of relatively tough, coarse-grained hard metal. The zone may comprise the whole of the insert or there may be two or more zones, the remainder being coarse-grained hard metal. The granules comprise hard metal of grain size below 3Á formed into regular or irregular granules e.g. by balling with a bonding metal e.g. cobalt, and may have a maximum dimension of 0À05 to 6 mms. The matrix may be hard metal of grain size between 3Á and 6Á bonded with cobalt. Examples are given of different arrangements of granules and matrix, e.g., the granules may be more concentrated in one zone than in another or the bottom of the insert may contain no granules.
GB18843/55A 1954-06-29 1955-06-29 Cutting inserts for rock drill bits Expired GB806406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE806406X 1954-06-29

Publications (1)

Publication Number Publication Date
GB806406A true GB806406A (en) 1958-12-23

Family

ID=20342717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18843/55A Expired GB806406A (en) 1954-06-29 1955-06-29 Cutting inserts for rock drill bits

Country Status (1)

Country Link
GB (1) GB806406A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137404B (en) * 1959-10-15 1962-10-04 Turbit Corp Drill bits
US3127945A (en) * 1960-03-02 1964-04-07 Jersey Prod Res Co Drag bit
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5677042A (en) * 1994-12-23 1997-10-14 Kennametal Inc. Composite cermet articles and method of making
US5686119A (en) * 1994-12-23 1997-11-11 Kennametal Inc. Composite cermet articles and method of making
WO2000038864A1 (en) * 1998-12-23 2000-07-06 De Beers Industrial Diamond Division (Proprietary) Limited Abrasive body
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
US20100330357A1 (en) * 2007-05-07 2010-12-30 Geoffrey John Davies Polycrystalline diamond composites
EP1915227B2 (en) † 2005-08-18 2016-08-24 Kennametal Inc. Composite cutting inserts

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137404B (en) * 1959-10-15 1962-10-04 Turbit Corp Drill bits
US3127945A (en) * 1960-03-02 1964-04-07 Jersey Prod Res Co Drag bit
US5762843A (en) * 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US5789686A (en) * 1994-12-23 1998-08-04 Kennametal Inc. Composite cermet articles and method of making
US5679445A (en) * 1994-12-23 1997-10-21 Kennametal Inc. Composite cermet articles and method of making
US5686119A (en) * 1994-12-23 1997-11-11 Kennametal Inc. Composite cermet articles and method of making
US5697046A (en) * 1994-12-23 1997-12-09 Kennametal Inc. Composite cermet articles and method of making
US5697042A (en) * 1994-12-23 1997-12-09 Kennametal Inc. Composite cermet articles and method of making
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5677042A (en) * 1994-12-23 1997-10-14 Kennametal Inc. Composite cermet articles and method of making
US5792403A (en) * 1994-12-23 1998-08-11 Kennametal Inc. Method of molding green bodies
US5806934A (en) * 1994-12-23 1998-09-15 Kennametal Inc. Method of using composite cermet articles
WO2000038864A1 (en) * 1998-12-23 2000-07-06 De Beers Industrial Diamond Division (Proprietary) Limited Abrasive body
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
EP1915227B2 (en) † 2005-08-18 2016-08-24 Kennametal Inc. Composite cutting inserts
US20100330357A1 (en) * 2007-05-07 2010-12-30 Geoffrey John Davies Polycrystalline diamond composites
US8840831B2 (en) * 2007-05-07 2014-09-23 Geoffrey John Davies Polycrystalline diamond composites

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