IE860272L - Producing hard metal component - Google Patents

Producing hard metal component

Info

Publication number
IE860272L
IE860272L IE860272A IE27286A IE860272L IE 860272 L IE860272 L IE 860272L IE 860272 A IE860272 A IE 860272A IE 27286 A IE27286 A IE 27286A IE 860272 L IE860272 L IE 860272L
Authority
IE
Ireland
Prior art keywords
hard metal
metal component
layer
producing hard
layers
Prior art date
Application number
IE860272A
Original Assignee
Boart Internat 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 Boart Internat Ltd filed Critical Boart Internat Ltd
Publication of IE860272L publication Critical patent/IE860272L/en

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
    • 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

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

Abstract

A hard metal component such as a wire drawing die is made from a first or inner layer with coarse grained tungsten carbide particles and an outer or second layer with finer grained tungsten carbide particles. Initially the layers have the same content of cobalt. The layers are pressed and then sintered. After sintering the first layer is reduced in cobalt content, but has a much higher wear resistance than a conventional component for the same purpose. [EP0194018A1]
IE860272A 1985-01-31 1986-01-30 Producing hard metal component IE860272L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA85761 1985-01-31

Publications (1)

Publication Number Publication Date
IE860272L true IE860272L (en) 1986-07-31

Family

ID=25577738

Family Applications (1)

Application Number Title Priority Date Filing Date
IE860272A IE860272L (en) 1985-01-31 1986-01-30 Producing hard metal component

Country Status (4)

Country Link
EP (1) EP0194018A1 (en)
JP (1) JPS61231104A (en)
IE (1) IE860272L (en)
NO (1) NO860333L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5679445A (en) * 1994-12-23 1997-10-21 Kennametal Inc. Composite cermet articles and method of making
US6183687B1 (en) * 1995-08-11 2001-02-06 Kennametal Inc. Hard composite and method of making the same
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
US6908688B1 (en) 2000-08-04 2005-06-21 Kennametal Inc. Graded composite hardmetals
CA2547926C (en) 2003-12-15 2013-08-06 Sandvik Intellectual Property Ab Cemented carbide tools for mining and construction applications and method of making the same
DE602004012521T8 (en) 2003-12-15 2009-08-13 Sandvik Intellectual Property Ab Cemented carbide insert and method for its production
WO2008062505A1 (en) 2006-11-20 2008-05-29 Kabushiki Kaisha Miyanaga Superhard tip and process for producing the same
US9764523B2 (en) * 2011-11-29 2017-09-19 Smith International, Inc. High pressure carbide component with surfaces incorporating gradient structures

Family Cites Families (2)

* 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
US4311490A (en) * 1980-12-22 1982-01-19 General Electric Company Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers

Also Published As

Publication number Publication date
EP0194018A1 (en) 1986-09-10
NO860333L (en) 1986-08-01
JPS61231104A (en) 1986-10-15

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