DE69123872T2 - Verfahren zur Herstellung von Sinterkarbidkörpern für Werkzeuge und Verschleissteile - Google Patents

Verfahren zur Herstellung von Sinterkarbidkörpern für Werkzeuge und Verschleissteile

Info

Publication number
DE69123872T2
DE69123872T2 DE69123872T DE69123872T DE69123872T2 DE 69123872 T2 DE69123872 T2 DE 69123872T2 DE 69123872 T DE69123872 T DE 69123872T DE 69123872 T DE69123872 T DE 69123872T DE 69123872 T2 DE69123872 T2 DE 69123872T2
Authority
DE
Germany
Prior art keywords
cemented carbide
tools
production
wear parts
carbide bodies
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 - Fee Related
Application number
DE69123872T
Other languages
English (en)
Other versions
DE69123872D1 (de
Inventor
Udo Karl Fischer
Jan Akerman
Bengt Anders Asberg
Stig Erik Lagerberg
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
Sandvik 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 Sandvik AB filed Critical Sandvik AB
Publication of DE69123872D1 publication Critical patent/DE69123872D1/de
Application granted granted Critical
Publication of DE69123872T2 publication Critical patent/DE69123872T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B10/56—Button-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
    • B22F7/062—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 involving the connection or repairing of preformed parts
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S76/00—Metal tools and implements, making
    • Y10S76/11—Tungsten and tungsten carbide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Earth Drilling (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Ceramic Products (AREA)
DE69123872T 1990-04-20 1991-04-18 Verfahren zur Herstellung von Sinterkarbidkörpern für Werkzeuge und Verschleissteile Expired - Fee Related DE69123872T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9001409A SE9001409D0 (sv) 1990-04-20 1990-04-20 Metod foer framstaellning av haardmetallkropp foer bergborrverktyg och slitdelar

Publications (2)

Publication Number Publication Date
DE69123872D1 DE69123872D1 (de) 1997-02-13
DE69123872T2 true DE69123872T2 (de) 1997-04-30

Family

ID=20379225

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123872T Expired - Fee Related DE69123872T2 (de) 1990-04-20 1991-04-18 Verfahren zur Herstellung von Sinterkarbidkörpern für Werkzeuge und Verschleissteile

Country Status (6)

Country Link
US (1) US5333520A (de)
EP (2) EP0733424A3 (de)
JP (1) JPH04228505A (de)
AT (1) ATE146999T1 (de)
DE (1) DE69123872T2 (de)
SE (1) SE9001409D0 (de)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9103065D0 (sv) * 1991-10-21 1991-10-21 Sandvik Ab Metod foer framstaellning av keramisk kropp
SE505526C2 (sv) * 1994-11-08 1997-09-15 Sandvik Ab Avsticksskär
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5762843A (en) * 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US5679445A (en) * 1994-12-23 1997-10-21 Kennametal Inc. Composite cermet articles and method of making
US5594931A (en) * 1995-05-09 1997-01-14 Newcomer Products, Inc. Layered composite carbide product and method of manufacture
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
US6183687B1 (en) 1995-08-11 2001-02-06 Kennametal Inc. Hard composite and method of making the same
SE518810C2 (sv) 1996-07-19 2002-11-26 Sandvik Ab Hårdmetallkropp med förbättrade högtemperatur- och termomekaniska egenskaper
AT1770U1 (de) * 1996-12-04 1997-11-25 Miba Sintermetall Ag Verfahren zum herstellen eines sinterformkörpers, insbesondere eines zahnriemen- oder kettenrades
US6197431B1 (en) * 1997-06-20 2001-03-06 Siemens Westinghouse Power Corporation Composite material machining tools
US6315945B1 (en) 1997-07-16 2001-11-13 The Dow Chemical Company Method to form dense complex shaped articles
GB9720059D0 (en) * 1997-09-19 1997-11-19 Isis Innovation Method of bonding
DE19912721C1 (de) * 1999-03-20 2000-08-10 Simon Karl Gmbh & Co Kg Verfahren zum Herstellen einer Fräslamelle und nach dem Verfahren hergestellte Fräslamelle
US6076754A (en) * 1999-04-16 2000-06-20 Littlef Ord Day, Incorporated Mixer apparatus with improved chopper assembly
US6511265B1 (en) * 1999-12-14 2003-01-28 Ati Properties, Inc. Composite rotary tool and tool fabrication method
DE19962232B4 (de) * 1999-12-22 2006-05-04 Vacuumschmelze Gmbh Verfahren zur Herstellung stabförmiger Dauermagnete
US6571889B2 (en) 2000-05-01 2003-06-03 Smith International, Inc. Rotary cone bit with functionally-engineered composite inserts
AT4665U1 (de) * 2000-07-14 2001-10-25 Plansee Tizit Ag Verfahren zum pressen einer schneidplatte
US6908688B1 (en) * 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
US20040157066A1 (en) * 2003-02-07 2004-08-12 Arzoumanidis G. Alexis Method of applying a hardcoating typically provided on downhole tools, and a system and apparatus having such a hardcoating
DE10305205B4 (de) * 2003-02-07 2006-10-19 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg Meißelspitze für einen Schaftmeißel
US7384443B2 (en) 2003-12-12 2008-06-10 Tdy Industries, Inc. Hybrid cemented carbide composites
US20050211475A1 (en) 2004-04-28 2005-09-29 Mirchandani Prakash K Earth-boring bits
US9428822B2 (en) 2004-04-28 2016-08-30 Baker Hughes Incorporated Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components
JP2006046540A (ja) * 2004-08-05 2006-02-16 Matsushita Electric Ind Co Ltd 動圧流体軸受装置
US7513320B2 (en) * 2004-12-16 2009-04-07 Tdy Industries, Inc. Cemented carbide inserts for earth-boring bits
US8637127B2 (en) 2005-06-27 2014-01-28 Kennametal Inc. Composite article with coolant channels and tool fabrication method
US7687156B2 (en) 2005-08-18 2010-03-30 Tdy Industries, Inc. Composite cutting inserts and methods of making the same
US7997359B2 (en) 2005-09-09 2011-08-16 Baker Hughes Incorporated Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials
US8002052B2 (en) 2005-09-09 2011-08-23 Baker Hughes Incorporated Particle-matrix composite drill bits with hardfacing
US7776256B2 (en) 2005-11-10 2010-08-17 Baker Huges Incorporated Earth-boring rotary drill bits and methods of manufacturing earth-boring rotary drill bits having particle-matrix composite bit bodies
US7597159B2 (en) 2005-09-09 2009-10-06 Baker Hughes Incorporated Drill bits and drilling tools including abrasive wear-resistant materials
US7703555B2 (en) 2005-09-09 2010-04-27 Baker Hughes Incorporated Drilling tools having hardfacing with nickel-based matrix materials and hard particles
US7784567B2 (en) 2005-11-10 2010-08-31 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits
US7807099B2 (en) 2005-11-10 2010-10-05 Baker Hughes Incorporated Method for forming earth-boring tools comprising silicon carbide composite materials
US7802495B2 (en) 2005-11-10 2010-09-28 Baker Hughes Incorporated Methods of forming earth-boring rotary drill bits
US8770324B2 (en) 2008-06-10 2014-07-08 Baker Hughes Incorporated Earth-boring tools including sinterbonded components and partially formed tools configured to be sinterbonded
US7913779B2 (en) 2005-11-10 2011-03-29 Baker Hughes Incorporated Earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials, and methods for forming such bits
US8312941B2 (en) 2006-04-27 2012-11-20 TDY Industries, LLC Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
CA2662966C (en) 2006-08-30 2012-11-13 Baker Hughes Incorporated Methods for applying wear-resistant material to exterior surfaces of earth-boring tools and resulting structures
WO2008051588A2 (en) 2006-10-25 2008-05-02 Tdy Industries, Inc. Articles having improved resistance to thermal cracking
US8272295B2 (en) 2006-12-07 2012-09-25 Baker Hughes Incorporated Displacement members and intermediate structures for use in forming at least a portion of bit bodies of earth-boring rotary drill bits
US7775287B2 (en) 2006-12-12 2010-08-17 Baker Hughes Incorporated Methods of attaching a shank to a body of an earth-boring drilling tool, and tools formed by such methods
US7841259B2 (en) 2006-12-27 2010-11-30 Baker Hughes Incorporated Methods of forming bit bodies
US8454274B2 (en) 2007-01-18 2013-06-04 Kennametal Inc. Cutting inserts
US9101985B2 (en) 2007-01-18 2015-08-11 Kennametal Inc. Cutting insert assembly and components thereof
US8727673B2 (en) 2007-01-18 2014-05-20 Kennametal Inc. Cutting insert with internal coolant delivery and surface feature for enhanced coolant flow
US7963729B2 (en) 2007-01-18 2011-06-21 Kennametal Inc. Milling cutter and milling insert with coolant delivery
US8328471B2 (en) 2007-01-18 2012-12-11 Kennametal Inc. Cutting insert with internal coolant delivery and cutting assembly using the same
US7625157B2 (en) 2007-01-18 2009-12-01 Kennametal Inc. Milling cutter and milling insert with coolant delivery
US20080175679A1 (en) * 2007-01-18 2008-07-24 Paul Dehnhardt Prichard Milling cutter and milling insert with core and coolant delivery
US7883299B2 (en) 2007-01-18 2011-02-08 Kennametal Inc. Metal cutting system for effective coolant delivery
US8439608B2 (en) * 2007-01-18 2013-05-14 Kennametal Inc. Shim for a cutting insert and cutting insert-shim assembly with internal coolant delivery
US8512882B2 (en) 2007-02-19 2013-08-20 TDY Industries, LLC Carbide cutting insert
US7846551B2 (en) 2007-03-16 2010-12-07 Tdy Industries, Inc. Composite articles
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles
EP2653580B1 (de) 2008-06-02 2014-08-20 Kennametal Inc. Zementierte carbidmetallische Legierungsverbindungen
US7703556B2 (en) 2008-06-04 2010-04-27 Baker Hughes Incorporated Methods of attaching a shank to a body of an earth-boring tool including a load-bearing joint and tools formed by such methods
US8261632B2 (en) 2008-07-09 2012-09-11 Baker Hughes Incorporated Methods of forming earth-boring drill bits
US8025112B2 (en) 2008-08-22 2011-09-27 Tdy Industries, Inc. Earth-boring bits and other parts including cemented carbide
US8322465B2 (en) 2008-08-22 2012-12-04 TDY Industries, LLC Earth-boring bit parts including hybrid cemented carbides and methods of making the same
US7955032B2 (en) 2009-01-06 2011-06-07 Kennametal Inc. Cutting insert with coolant delivery and method of making the cutting insert
US8272816B2 (en) 2009-05-12 2012-09-25 TDY Industries, LLC Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
US8201610B2 (en) 2009-06-05 2012-06-19 Baker Hughes Incorporated Methods for manufacturing downhole tools and downhole tool parts
US8308096B2 (en) 2009-07-14 2012-11-13 TDY Industries, LLC Reinforced roll and method of making same
US8440314B2 (en) 2009-08-25 2013-05-14 TDY Industries, LLC Coated cutting tools having a platinum group metal concentration gradient and related processes
US9643236B2 (en) 2009-11-11 2017-05-09 Landis Solutions Llc Thread rolling die and method of making same
EP2571647A4 (de) 2010-05-20 2017-04-12 Baker Hughes Incorporated Verfahren zur formung mindestens eines teils eines erdbohrwerkzeugs und in diesen verfahren geformte artikel
CN102985197A (zh) 2010-05-20 2013-03-20 贝克休斯公司 形成钻地工具的至少一部分的方法，以及通过此类方法形成的制品
MX2012013454A (es) 2010-05-20 2013-05-01 Baker Hughes Inc Metodos para formar al menos una porcion de herramientas para perforar la tierra.
US8734062B2 (en) 2010-09-02 2014-05-27 Kennametal Inc. Cutting insert assembly and components thereof
US8827599B2 (en) 2010-09-02 2014-09-09 Kennametal Inc. Cutting insert assembly and components thereof
US8800848B2 (en) 2011-08-31 2014-08-12 Kennametal Inc. Methods of forming wear resistant layers on metallic surfaces
US9016406B2 (en) 2011-09-22 2015-04-28 Kennametal Inc. Cutting inserts for earth-boring bits
EP2644299B2 (de) 2012-03-29 2022-01-26 Seco Tools Ab Hartmetallkörper und Verfahren zur Herstellung des Hartmetallkörpers
KR102210176B1 (ko) 2013-03-15 2021-01-29 산드빅 인터렉츄얼 프로퍼티 에이비 상이한 크기 및 형상의 소결 부분들을 접합하는 방법

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH233609A (de) * 1942-03-26 1944-08-15 Vogt Hans Verfahren zur Herstellung von Sinterkörpern.
US3279049A (en) * 1963-12-05 1966-10-18 Chromalloy Corp Method for bonding a sintered refractory carbide body to a metalliferous surface
US3429700A (en) * 1966-09-20 1969-02-25 Teleflex Inc Method of producing composite metal articles by uniting two identical shapes
FR1522955A (fr) * 1967-05-16 1968-04-26 Federal Mogul Corp Procédé de jonction mécanique de pièces en poudres métalliques frittées
US3665585A (en) * 1970-12-04 1972-05-30 Federal Mogul Corp Composite heavy-duty mechanism element and method of making the same
FR2223472A1 (en) * 1973-03-29 1974-10-25 Creusot Loire Compound hard sintered material mfr. - e.g. carbide and metal, to form compound workpieces
GB1497990A (en) * 1975-11-10 1978-01-12 Tokyo Shibaura Electric Co Composite ceramic articles and a method of manufacturing the same
JPS5328505A (en) * 1976-08-31 1978-03-16 Fuji Dies Kk Superhard alloy product and process for production thereof
US4280841A (en) * 1977-09-27 1981-07-28 Nippon Tungsten Co., Ltd. Method for manufacturing a mechanical seal ring
US4478611A (en) * 1979-12-14 1984-10-23 Hughes Tool Company Method of making tungsten carbide grit
JPS603922B2 (ja) * 1980-09-03 1985-01-31 日本油脂株式会社 切削工具
IL62342A (en) * 1981-03-10 1983-12-30 Iscar Ltd Method of bonding cemented carbide bodies and composite hard metal products manufactured thereby
DE3203857C2 (de) * 1982-02-03 1984-08-02 Mannesmann AG, 4000 Düsseldorf Ölfeldrohr-Verbindung und Verfahren zum Verbinden von Ölfeld-Rohren
DE3372267D1 (en) * 1982-03-31 1987-08-06 De Beers Ind Diamond Abrasive bodies
US4629373A (en) * 1983-06-22 1986-12-16 Megadiamond Industries, Inc. Polycrystalline diamond body with enhanced surface irregularities
JPS61197476A (ja) * 1985-02-26 1986-09-01 株式会社東芝 複合体およびその製造方法
US4661180A (en) * 1985-03-25 1987-04-28 Gte Valeron Corporation Method of making diamond tool
US4594219A (en) * 1985-08-02 1986-06-10 Metals, Ltd. Powder metal consolidation of multiple preforms
US4713286A (en) * 1985-10-31 1987-12-15 Precorp, Inc. Printed circuit board drill and method of manufacture
US4662896A (en) * 1986-02-19 1987-05-05 Strata Bit Corporation Method of making an abrasive cutting element
KR880701149A (ko) * 1986-05-16 1988-07-25 원본미기재 멀티-체인 스프로킷의 제조방법
US4722824A (en) * 1986-06-04 1988-02-02 Fine Particle Technology Corp. Method of joining green bodies prior to sintering
US4705124A (en) * 1986-08-22 1987-11-10 Minnesota Mining And Manufacturing Company Cutting element with wear resistant crown
JPS63252681A (ja) * 1987-04-08 1988-10-19 Namiki Precision Jewel Co Ltd 時計バンド用加工素材
SE467649B (sv) * 1988-10-21 1992-08-24 Sandvik Ab Sintrat dubbelpositivt skaer bestaaende av tvaa identiska pulverkroppar, samt metod foer tillverkning av skaeret
US4911254A (en) * 1989-05-03 1990-03-27 Hughes Tool Company Polycrystalline diamond cutting element with mating recess
JPH04293705A (ja) * 1991-03-20 1992-10-19 Akebono Brake Res & Dev Center Ltd アルミ基複合材ディスクロータの製造方法

Also Published As

Publication number Publication date
JPH04228505A (ja) 1992-08-18
DE69123872D1 (de) 1997-02-13
EP0453428A1 (de) 1991-10-23
EP0453428B1 (de) 1997-01-02
US5333520A (en) 1994-08-02
ATE146999T1 (de) 1997-01-15
EP0733424A2 (de) 1996-09-25
SE9001409D0 (sv) 1990-04-20
EP0733424A3 (de) 1997-01-15

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