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GB2017153A - Method of Producing Composite Hard Metal Bodies - Google Patents

Method of Producing Composite Hard Metal Bodies

Info

Publication number
GB2017153A
GB2017153A GB7908875A GB7908875A GB2017153A GB 2017153 A GB2017153 A GB 2017153A GB 7908875 A GB7908875 A GB 7908875A GB 7908875 A GB7908875 A GB 7908875A GB 2017153 A GB2017153 A GB 2017153A
Authority
GB
United Kingdom
Prior art keywords
hard metal
metal bodies
producing composite
composite hard
sheath
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
GB7908875A
Other versions
GB2017153B (en
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of GB2017153A publication Critical patent/GB2017153A/en
Application granted granted Critical
Publication of GB2017153B publication Critical patent/GB2017153B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

A composite hard metal body, consisting of a core and a sheath of different hard metal alloys (e.g. of WC/CO) is made by introducing a presintered core into a prepressed sheath and then sintering to cause the sheath to shrink on to the core. The composite body may be subsequently subjected to hot isostatic pressing.
GB7908875A 1978-03-13 1979-03-13 Method of producing composite hard metal bodies Expired GB2017153B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782810746 DE2810746A1 (en) 1978-03-13 1978-03-13 PROCESS FOR THE PRODUCTION OF COMPOSITE HARD METALS

Publications (2)

Publication Number Publication Date
GB2017153A true GB2017153A (en) 1979-10-03
GB2017153B GB2017153B (en) 1982-10-27

Family

ID=6034255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908875A Expired GB2017153B (en) 1978-03-13 1979-03-13 Method of producing composite hard metal bodies

Country Status (4)

Country Link
DE (1) DE2810746A1 (en)
FR (1) FR2419786A1 (en)
GB (1) GB2017153B (en)
SE (1) SE7901875L (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052584A1 (en) * 1980-11-13 1982-05-26 Institut Cerac S.A. A method of producing a steel body comprising hard material inserts
EP0089155A3 (en) * 1982-03-05 1983-12-07 Rolls-Royce Plc Composite articles and a method for their manufacture
GB2153850A (en) * 1984-02-07 1985-08-29 Nippon Piston Ring Co Ltd Method of manufacturing a camshaft
GB2201970A (en) * 1986-12-26 1988-09-14 Toyo Kohan Co Ltd Process for making sintered layer-on-metal composite
EP0288775A1 (en) * 1987-04-28 1988-11-02 Kennametal Inc. Earth working tool having a working element fabricated from cemented tungsten carbide compositions with enhanced properties
US4881431A (en) * 1986-01-18 1989-11-21 Fried. Krupp Gesellscahft mit beschrankter Haftung Method of making a sintered body having an internal channel
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
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
WO1998028455A1 (en) * 1996-12-20 1998-07-02 Sandvik Ab (Publ) Metal working drill/endmill blank
WO1999015294A1 (en) * 1997-09-19 1999-04-01 Isis Innovation Limited Method of liquid phase bonding
US6183687B1 (en) 1995-08-11 2001-02-06 Kennametal Inc. Hard composite and method of making the same
GB2365025A (en) * 2000-05-01 2002-02-13 Smith International Cermet rock bit inserts with wear resistant coating
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
US20120114939A1 (en) * 2005-10-12 2012-05-10 Environmental Monitoring And Control Limited Ceramic Component and Fabrication Method
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359335A (en) * 1980-06-05 1982-11-16 Smith International, Inc. Method of fabrication of rock bit inserts of tungsten carbide (WC) and cobalt (Co) with cutting surface wear pad of relative hardness and body portion of relative toughness sintered as an integral composite
DE4414249C2 (en) * 1994-04-23 2000-05-25 Max Hobe Use of an object made of hard metal and crystal and / or ceramic
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
US7807099B2 (en) 2005-11-10 2010-10-05 Baker Hughes Incorporated Method for forming earth-boring tools comprising silicon carbide composite materials
US8261632B2 (en) 2008-07-09 2012-09-11 Baker Hughes Incorporated Methods of forming earth-boring drill bits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR895819A (en) * 1942-03-26 1945-02-05 Manufacturing process of sintered bodies
FR2358228A1 (en) * 1976-07-15 1978-02-10 Sumitomo Electric Industries Reclaiming worn cylindrical hard metal tools - by sintering hard metal outer ring onto undersize tool
JPS5328505A (en) * 1976-08-31 1978-03-16 Fuji Dies Kk Superhard alloy product and process for production thereof

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052584A1 (en) * 1980-11-13 1982-05-26 Institut Cerac S.A. A method of producing a steel body comprising hard material inserts
EP0089155A3 (en) * 1982-03-05 1983-12-07 Rolls-Royce Plc Composite articles and a method for their manufacture
GB2153850A (en) * 1984-02-07 1985-08-29 Nippon Piston Ring Co Ltd Method of manufacturing a camshaft
US4881431A (en) * 1986-01-18 1989-11-21 Fried. Krupp Gesellscahft mit beschrankter Haftung Method of making a sintered body having an internal channel
GB2201970A (en) * 1986-12-26 1988-09-14 Toyo Kohan Co Ltd Process for making sintered layer-on-metal composite
GB2201970B (en) * 1986-12-26 1991-03-27 Toyo Kohan Co Ltd Sintered layer-on-steel composite
EP0288775A1 (en) * 1987-04-28 1988-11-02 Kennametal Inc. Earth working tool having a working element fabricated from cemented tungsten carbide compositions with enhanced properties
US4859543A (en) * 1987-04-28 1989-08-22 Kennametal Inc. Earth working tool having a working element fabricated from cemented tungsten carbide compositions with enhanced properties
US5541006A (en) * 1994-12-23 1996-07-30 Kennametal Inc. Method of making composite cermet articles and the articles
US5792403A (en) * 1994-12-23 1998-08-11 Kennametal Inc. Method of molding green bodies
US5677042A (en) * 1994-12-23 1997-10-14 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
US5697042A (en) * 1994-12-23 1997-12-09 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
US5762843A (en) * 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US5806934A (en) * 1994-12-23 1998-09-15 Kennametal Inc. Method of using composite cermet articles
US5789686A (en) * 1994-12-23 1998-08-04 Kennametal Inc. Composite cermet articles and method of making
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
WO1998028455A1 (en) * 1996-12-20 1998-07-02 Sandvik Ab (Publ) Metal working drill/endmill blank
WO1999015294A1 (en) * 1997-09-19 1999-04-01 Isis Innovation Limited Method of liquid phase bonding
US8397841B1 (en) 2000-05-01 2013-03-19 Smith International, Inc. Drill bit with cutting elements having functionally engineered wear surface
GB2365025A (en) * 2000-05-01 2002-02-13 Smith International Cermet rock bit inserts with wear resistant coating
US6571889B2 (en) 2000-05-01 2003-06-03 Smith International, Inc. Rotary cone bit with functionally-engineered composite inserts
GB2365025B (en) * 2000-05-01 2004-09-15 Smith International Rotary cone bit with functionally-engineered composite inserts
US7235211B2 (en) 2000-05-01 2007-06-26 Smith International, Inc. Rotary cone bit with functionally-engineered composite inserts
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
US20120114939A1 (en) * 2005-10-12 2012-05-10 Environmental Monitoring And Control Limited Ceramic Component and Fabrication Method
US20140318024A1 (en) * 2005-11-10 2014-10-30 Baker Hughes Incorporated Methods of forming earth-boring tools including sinterbonded components
US9192989B2 (en) * 2005-11-10 2015-11-24 Baker Hughes Incorporated Methods of forming earth-boring tools including sinterbonded components
US20160023327A1 (en) * 2005-11-10 2016-01-28 Baker Hughes Incorporated Methods of forming earth-boring tools including sinterbonded components
US9700991B2 (en) * 2005-11-10 2017-07-11 Baker Hughes Incorporated Methods of forming earth-boring tools including sinterbonded components
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
US20170321488A1 (en) * 2008-06-10 2017-11-09 Baker Hughes Incorporated Methods of forming earth-boring tools including sinterbonded components
US10144113B2 (en) 2008-06-10 2018-12-04 Baker Hughes Incorporated Methods of forming earth-boring tools including sinterbonded components

Also Published As

Publication number Publication date
FR2419786A1 (en) 1979-10-12
DE2810746A1 (en) 1979-09-20
GB2017153B (en) 1982-10-27
SE7901875L (en) 1979-09-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee