IL58019A - Method of making tool inserts and drill bits - Google Patents

Method of making tool inserts and drill bits

Info

Publication number
IL58019A
IL58019A IL7958019A IL5801979A IL58019A IL 58019 A IL58019 A IL 58019A IL 7958019 A IL7958019 A IL 7958019A IL 5801979 A IL5801979 A IL 5801979A IL 58019 A IL58019 A IL 58019A
Authority
IL
Israel
Prior art keywords
drill bits
tool inserts
making tool
making
inserts
Prior art date
Application number
IL7958019A
Other languages
English (en)
Other versions
IL58019A0 (en
Original Assignee
De Beers Ind Diamond
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27506079&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL58019(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from ZA784716A external-priority patent/ZA784716B/xx
Application filed by De Beers Ind Diamond filed Critical De Beers Ind Diamond
Publication of IL58019A0 publication Critical patent/IL58019A0/xx
Publication of IL58019A publication Critical patent/IL58019A/xx

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
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/025—Dies; Selection of material therefor; Cleaning thereof comprising diamond parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/18—Making tools by operations not covered by a single other subclass; Repairing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Earth Drilling (AREA)
IL7958019A 1978-08-18 1979-08-10 Method of making tool inserts and drill bits IL58019A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA784716A ZA784716B (en) 1978-08-18 1978-08-18 A method of making tool inserts
ZA787087 1978-12-19
ZA787291 1978-12-27
ZA79814 1979-02-21

Publications (2)

Publication Number Publication Date
IL58019A0 IL58019A0 (en) 1979-12-30
IL58019A true IL58019A (en) 1985-07-31

Family

ID=27506079

Family Applications (1)

Application Number Title Priority Date Filing Date
IL7958019A IL58019A (en) 1978-08-18 1979-08-10 Method of making tool inserts and drill bits

Country Status (9)

Country Link
US (1) US4481016A (zh)
EP (2) EP0101096B1 (zh)
JP (1) JPS646494A (zh)
AU (1) AU528899B2 (zh)
BR (1) BR7905319A (zh)
CA (1) CA1125518A (zh)
DE (1) DE2966640D1 (zh)
IE (1) IE48798B1 (zh)
IL (1) IL58019A (zh)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016740A1 (de) * 1980-04-30 1981-11-05 Lach-Spezial-Werkzeuge Gmbh, 6450 Hanau Abrichtwerkzeug
ATE34108T1 (de) * 1982-12-21 1988-05-15 De Beers Ind Diamond Schleifpresskoerper und verfahren zu ihrer herstellung.
CA1253349A (en) * 1983-08-29 1989-05-02 Robert H. Frushour Polycrystalline abrasive grit
US4828582A (en) * 1983-08-29 1989-05-09 General Electric Company Polycrystalline abrasive grit
AU578637B2 (en) * 1983-12-03 1988-11-03 N.L. Petroleum Products Ltd. Rotary drill bits and cutting elements for such bits
GB8432587D0 (en) * 1984-12-22 1985-02-06 Nl Petroleum Prod Cutting elements for rotary drill bits
US4694918A (en) * 1985-04-29 1987-09-22 Smith International, Inc. Rock bit with diamond tip inserts
EP0210576B1 (de) * 1985-08-01 1989-05-31 Techno Saarstahl GmbH Schneideinsatz zum spanabhebenden Bearbeiten
US5195404A (en) * 1987-06-18 1993-03-23 Notter Theo A Drill bit with cutting insert
GB8722085D0 (en) * 1987-09-19 1987-10-28 Cambridge Consultants Ink jet nozzle manufacture
US4819516A (en) * 1988-01-07 1989-04-11 Diamant Boart-Stratabit (Usa) Inc. Method of forming a cutting element having a V-shaped diamond cutting face
US5051112A (en) * 1988-06-29 1991-09-24 Smith International, Inc. Hard facing
GB8907618D0 (en) * 1989-04-05 1989-05-17 Morrison Pumps Sa Drilling
US5026960A (en) * 1989-10-31 1991-06-25 The General Electric Company Chip breaker for polycrystalline CBN and diamond compacts
GB9015609D0 (en) * 1990-07-16 1990-09-05 De Beers Ind Diamond Tool insert
US5791330A (en) * 1991-06-10 1998-08-11 Ultimate Abrasive Systems, L.L.C. Abrasive cutting tool
US5183479A (en) * 1991-11-01 1993-02-02 Gemtex Company Limited Abrasive disks and method of making
GB9224627D0 (en) * 1992-11-24 1993-01-13 De Beers Ind Diamond Drill bit
GB9310500D0 (en) * 1993-05-21 1993-07-07 De Beers Ind Diamond Cutting tool
US6478831B2 (en) 1995-06-07 2002-11-12 Ultimate Abrasive Systems, L.L.C. Abrasive surface and article and methods for making them
US6453899B1 (en) 1995-06-07 2002-09-24 Ultimate Abrasive Systems, L.L.C. Method for making a sintered article and products produced thereby
US6482244B2 (en) 1995-06-07 2002-11-19 Ultimate Abrasive Systems, L.L.C. Process for making an abrasive sintered product
DE69717635T2 (de) * 1996-07-30 2003-04-10 Drukker International B.V., Cuyk Verfahren zur herstellung eines schneideinsatzes für schneidwerkzeug
GB9701695D0 (en) * 1997-01-28 1997-03-19 De Beers Ind Diamond Insert for an abrasive tool
US9238207B2 (en) 1997-04-04 2016-01-19 Chien-Min Sung Brazed diamond tools and methods for making the same
US9868100B2 (en) 1997-04-04 2018-01-16 Chien-Min Sung Brazed diamond tools and methods for making the same
US9409280B2 (en) 1997-04-04 2016-08-09 Chien-Min Sung Brazed diamond tools and methods for making the same
US9221154B2 (en) 1997-04-04 2015-12-29 Chien-Min Sung Diamond tools and methods for making the same
US9199357B2 (en) 1997-04-04 2015-12-01 Chien-Min Sung Brazed diamond tools and methods for making the same
US9463552B2 (en) 1997-04-04 2016-10-11 Chien-Min Sung Superbrasvie tools containing uniformly leveled superabrasive particles and associated methods
MXPA03002473A (es) 2000-09-20 2004-09-10 Camco Int Uk Ltd Diamante policristalino con una superficie empobrecida de material de catalizacion.
DE60140617D1 (de) 2000-09-20 2010-01-07 Camco Int Uk Ltd Polykristalliner diamant mit einer an katalysatormaterial abgereicherten oberfläche
EP1190791B1 (en) 2000-09-20 2010-06-23 Camco International (UK) Limited Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength
US6592985B2 (en) 2000-09-20 2003-07-15 Camco International (Uk) Limited Polycrystalline diamond partially depleted of catalyzing material
AU2007201463B2 (en) * 2003-08-13 2010-09-09 Sandvik Intellectual Property Ab Shaped inserts with increased retention force
US7416035B2 (en) * 2003-08-13 2008-08-26 Smith International, Inc. Shaped inserts with increased retention force
US7595110B2 (en) * 2003-10-08 2009-09-29 Frushour Robert H Polycrystalline diamond composite
US7517588B2 (en) * 2003-10-08 2009-04-14 Frushour Robert H High abrasion resistant polycrystalline diamond composite
GB2408735B (en) * 2003-12-05 2009-01-28 Smith International Thermally-stable polycrystalline diamond materials and compacts
US7647993B2 (en) 2004-05-06 2010-01-19 Smith International, Inc. Thermally stable diamond bonded materials and compacts
US7762872B2 (en) * 2004-08-24 2010-07-27 Chien-Min Sung Superhard cutters and associated methods
US7384436B2 (en) * 2004-08-24 2008-06-10 Chien-Min Sung Polycrystalline grits and associated methods
US20070060026A1 (en) * 2005-09-09 2007-03-15 Chien-Min Sung Methods of bonding superabrasive particles in an organic matrix
US20060258276A1 (en) * 2005-05-16 2006-11-16 Chien-Min Sung Superhard cutters and associated methods
US7658666B2 (en) * 2004-08-24 2010-02-09 Chien-Min Sung Superhard cutters and associated methods
US7608333B2 (en) * 2004-09-21 2009-10-27 Smith International, Inc. Thermally stable diamond polycrystalline diamond constructions
US7754333B2 (en) * 2004-09-21 2010-07-13 Smith International, Inc. Thermally stable diamond polycrystalline diamond constructions
US7681669B2 (en) 2005-01-17 2010-03-23 Us Synthetic Corporation Polycrystalline diamond insert, drill bit including same, and method of operation
US7350601B2 (en) 2005-01-25 2008-04-01 Smith International, Inc. Cutting elements formed from ultra hard materials having an enhanced construction
US8197936B2 (en) * 2005-01-27 2012-06-12 Smith International, Inc. Cutting structures
GB2454122B (en) 2005-02-08 2009-07-08 Smith International Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
US8398466B2 (en) 2006-11-16 2013-03-19 Chien-Min Sung CMP pad conditioners with mosaic abrasive segments and associated methods
US8393934B2 (en) 2006-11-16 2013-03-12 Chien-Min Sung CMP pad dressers with hybridized abrasive surface and related methods
US8678878B2 (en) 2009-09-29 2014-03-25 Chien-Min Sung System for evaluating and/or improving performance of a CMP pad dresser
US9138862B2 (en) 2011-05-23 2015-09-22 Chien-Min Sung CMP pad dresser having leveled tips and associated methods
US9724802B2 (en) 2005-05-16 2017-08-08 Chien-Min Sung CMP pad dressers having leveled tips and associated methods
US8622787B2 (en) 2006-11-16 2014-01-07 Chien-Min Sung CMP pad dressers with hybridized abrasive surface and related methods
US7377341B2 (en) * 2005-05-26 2008-05-27 Smith International, Inc. Thermally stable ultra-hard material compact construction
US7493973B2 (en) * 2005-05-26 2009-02-24 Smith International, Inc. Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance
US8020643B2 (en) 2005-09-13 2011-09-20 Smith International, Inc. Ultra-hard constructions with enhanced second phase
US7726421B2 (en) 2005-10-12 2010-06-01 Smith International, Inc. Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength
US7628234B2 (en) * 2006-02-09 2009-12-08 Smith International, Inc. Thermally stable ultra-hard polycrystalline materials and compacts
US8066087B2 (en) 2006-05-09 2011-11-29 Smith International, Inc. Thermally stable ultra-hard material compact constructions
US8622155B2 (en) 2006-08-11 2014-01-07 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
US7669674B2 (en) 2006-08-11 2010-03-02 Hall David R Degradation assembly
US9051795B2 (en) 2006-08-11 2015-06-09 Schlumberger Technology Corporation Downhole drill bit
US8590644B2 (en) 2006-08-11 2013-11-26 Schlumberger Technology Corporation Downhole drill bit
US7637574B2 (en) 2006-08-11 2009-12-29 Hall David R Pick assembly
US8567532B2 (en) 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US9145742B2 (en) 2006-08-11 2015-09-29 Schlumberger Technology Corporation Pointed working ends on a drill bit
US8714285B2 (en) 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US8215420B2 (en) 2006-08-11 2012-07-10 Schlumberger Technology Corporation Thermally stable pointed diamond with increased impact resistance
US9068410B2 (en) 2006-10-26 2015-06-30 Schlumberger Technology Corporation Dense diamond body
US8960337B2 (en) 2006-10-26 2015-02-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
US8028771B2 (en) 2007-02-06 2011-10-04 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
US7942219B2 (en) * 2007-03-21 2011-05-17 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
US9051794B2 (en) * 2007-04-12 2015-06-09 Schlumberger Technology Corporation High impact shearing element
US8499861B2 (en) * 2007-09-18 2013-08-06 Smith International, Inc. Ultra-hard composite constructions comprising high-density diamond surface
US7980334B2 (en) * 2007-10-04 2011-07-19 Smith International, Inc. Diamond-bonded constructions with improved thermal and mechanical properties
TW200940258A (en) 2007-11-13 2009-10-01 Chien-Min Sung CMP pad dressers
US9011563B2 (en) 2007-12-06 2015-04-21 Chien-Min Sung Methods for orienting superabrasive particles on a surface and associated tools
US9297211B2 (en) 2007-12-17 2016-03-29 Smith International, Inc. Polycrystalline diamond construction with controlled gradient metal content
US8540037B2 (en) 2008-04-30 2013-09-24 Schlumberger Technology Corporation Layered polycrystalline diamond
US8083012B2 (en) * 2008-10-03 2011-12-27 Smith International, Inc. Diamond bonded construction with thermally stable region
US7972395B1 (en) 2009-04-06 2011-07-05 Us Synthetic Corporation Superabrasive articles and methods for removing interstitial materials from superabrasive materials
US8951317B1 (en) 2009-04-27 2015-02-10 Us Synthetic Corporation Superabrasive elements including ceramic coatings and methods of leaching catalysts from superabrasive elements
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
CN102414394B (zh) 2009-05-06 2015-11-25 史密斯国际有限公司 具有再加工的热稳定多晶金刚石切割层的切割元件，结合有其的钻头，及其制造方法
GB2481957B (en) 2009-05-06 2014-10-15 Smith International Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting
GB2483590B8 (en) 2009-06-18 2014-07-23 Smith International Polycrystalline diamond cutting elements with engineered porosity and method for manufacturing such cutting elements
US9352447B2 (en) 2009-09-08 2016-05-31 Us Synthetic Corporation Superabrasive elements and methods for processing and manufacturing the same using protective layers
US9463531B2 (en) 2009-10-23 2016-10-11 Kennametal Inc. Three-dimensional surface shaping of rotary cutting tool edges with lasers
US8430173B2 (en) 2010-04-12 2013-04-30 Halliburton Energy Services, Inc. High strength dissolvable structures for use in a subterranean well
US8430174B2 (en) 2010-09-10 2013-04-30 Halliburton Energy Services, Inc. Anhydrous boron-based timed delay plugs
WO2012040373A2 (en) 2010-09-21 2012-03-29 Ritedia Corporation Diamond particle mololayer heat spreaders and associated methods
CN104726063B (zh) * 2010-11-01 2018-01-12 3M创新有限公司 成形陶瓷磨粒和成形陶瓷前体粒子
US8833443B2 (en) 2010-11-22 2014-09-16 Halliburton Energy Services, Inc. Retrievable swellable packer
US8741010B2 (en) 2011-04-28 2014-06-03 Robert Frushour Method for making low stress PDC
US8858665B2 (en) 2011-04-28 2014-10-14 Robert Frushour Method for making fine diamond PDC
US8974559B2 (en) 2011-05-12 2015-03-10 Robert Frushour PDC made with low melting point catalyst
US9061264B2 (en) 2011-05-19 2015-06-23 Robert H. Frushour High abrasion low stress PDC
US8828110B2 (en) 2011-05-20 2014-09-09 Robert Frushour ADNR composite
TWI487019B (en) 2011-05-23 2015-06-01 Cmp pad dresser having leveled tips and associated methods
US9144886B1 (en) 2011-08-15 2015-09-29 Us Synthetic Corporation Protective leaching cups, leaching trays, and methods for processing superabrasive elements using protective leaching cups and leaching trays
RU2014122863A (ru) 2012-06-13 2015-12-10 Варел Интернэшнл Инд., Л.П. Поликристаллические алмазные резцы повышенной прочности и термостойкости
US9550276B1 (en) 2013-06-18 2017-01-24 Us Synthetic Corporation Leaching assemblies, systems, and methods for processing superabrasive elements
US9789587B1 (en) 2013-12-16 2017-10-17 Us Synthetic Corporation Leaching assemblies, systems, and methods for processing superabrasive elements
US10807913B1 (en) 2014-02-11 2020-10-20 Us Synthetic Corporation Leached superabrasive elements and leaching systems methods and assemblies for processing superabrasive elements
DE102014207510B4 (de) 2014-04-17 2021-12-16 Kennametal Inc. Zerspanungswerkzeug sowie Verfahren zum Herstellen eines Zerspanungswerkzeugs
DE102014207507B4 (de) 2014-04-17 2021-12-16 Kennametal Inc. Zerspanungswerkzeug sowie Verfahren zum Herstellen eines Zerspanungswerkzeugs
US9908215B1 (en) 2014-08-12 2018-03-06 Us Synthetic Corporation Systems, methods and assemblies for processing superabrasive materials
US10011000B1 (en) 2014-10-10 2018-07-03 Us Synthetic Corporation Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials
US11766761B1 (en) 2014-10-10 2023-09-26 Us Synthetic Corporation Group II metal salts in electrolytic leaching of superabrasive materials
US9643282B2 (en) * 2014-10-17 2017-05-09 Kennametal Inc. Micro end mill and method of manufacturing same
CN104453719A (zh) * 2014-11-20 2015-03-25 西南石油大学 一种衬套镶齿钻头及其加工方法
CN104389524A (zh) * 2014-11-20 2015-03-04 西南石油大学 一种倒锥齿根镶齿钻头及其加工方法
US10723626B1 (en) 2015-05-31 2020-07-28 Us Synthetic Corporation Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials
US10900291B2 (en) 2017-09-18 2021-01-26 Us Synthetic Corporation Polycrystalline diamond elements and systems and methods for fabricating the same

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT147764B (de) * 1935-12-05 1936-11-25 Anton Ing Kratky Verfahren und Vorrichtung zur Herstellung von Hartkörpern, insbesondere für Schneid-, Zieh- und andere Werkzeuge aus Hartkarbiden, Hartnitriden od. dgl.
US2194472A (en) * 1935-12-30 1940-03-26 Carborundum Co Production of abrasive materials
US2939941A (en) * 1957-03-20 1960-06-07 Heerschap Matthys Eroding of hard crystalline carbon
US3293950A (en) * 1965-01-15 1966-12-27 Dow Corning Wire drawing die
US3481723A (en) * 1965-03-02 1969-12-02 Itt Abrasive grinding wheel
US3563325A (en) * 1968-09-16 1971-02-16 Kennametal Inc Percussion bit
US3702573A (en) * 1969-03-19 1972-11-14 Kennametal Inc Cermet product and method and apparatus for the manufacture thereof
US3693736A (en) * 1969-09-04 1972-09-26 Mission Mfg Co Cutter insert for rock bits
AU6093169A (en) * 1969-09-16 1971-03-18 Ingersoll-Rand Company Drill bit and method & apparatus for making same
NL7104326A (zh) * 1970-04-08 1971-10-12 Gen Electric
US3831428A (en) * 1973-03-26 1974-08-27 Gen Electric Composite wire drawing die
US3929432A (en) * 1970-05-29 1975-12-30 De Beers Ind Diamond Diamond particle having a composite coating of titanium and a metal layer
US3743489A (en) * 1971-07-01 1973-07-03 Gen Electric Abrasive bodies of finely-divided cubic boron nitride crystals
ZA731183B (en) * 1972-03-02 1973-11-28 Smith Williston Inc Rock drill bit and sleeve assembly and bit installation method
US3859407A (en) * 1972-05-15 1975-01-07 Corning Glass Works Method of manufacturing particles of uniform size and shape
SE382579B (sv) * 1974-01-30 1976-02-09 Skf Ind Trading & Dev Sett att framstella skerverktyg av vendskertyp med flera skereggar
US4099935A (en) * 1974-07-17 1978-07-11 Buckbee-Mears Company Cutting teeth for etched abrasives
IE42084B1 (en) * 1974-09-18 1980-06-04 De Beers Ind Diamond Abrasive bodies
US4057294A (en) * 1975-08-01 1977-11-08 The Cincinnati Mine Machinery Company Wedge arrangement for removably affixing a work tool or work tool holder to a base member on mining, road working or earth moving machinery, and the like
IE43938B1 (en) * 1975-09-04 1981-07-01 De Beers Ind Diamond Improvements in spark erosion
US4098362A (en) * 1976-11-30 1978-07-04 General Electric Company Rotary drill bit and method for making same
US4086973A (en) * 1976-12-03 1978-05-02 Dresser Industries, Inc. Asymmetric insert for inner row of an earth boring cutter
FR2380412A1 (fr) * 1977-02-10 1978-09-08 Keen Timothy Fleuret de forage
ZA771273B (en) * 1977-03-03 1978-10-25 De Beers Ind Diamond Abrasive bodies
US4156329A (en) * 1977-05-13 1979-05-29 General Electric Company Method for fabricating a rotary drill bit and composite compact cutters therefor

Also Published As

Publication number Publication date
IE791531L (en) 1980-02-18
JPS646494A (en) 1989-01-11
CA1125518A (en) 1982-06-15
IE48798B1 (en) 1985-05-15
BR7905319A (pt) 1980-05-20
DE2966640D1 (en) 1984-03-15
AU4990379A (en) 1980-02-21
IL58019A0 (en) 1979-12-30
JPH0348315B2 (zh) 1991-07-24
EP0101096B1 (en) 1986-06-11
AU528899B2 (en) 1983-05-19
EP0009315A1 (en) 1980-04-02
EP0101096A1 (en) 1984-02-22
US4481016A (en) 1984-11-06
EP0009315B1 (en) 1984-02-08

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