EP0822265A3 - Nitrogen-containing sintered hard alloy - Google Patents

Nitrogen-containing sintered hard alloy Download PDF

Info

Publication number
EP0822265A3
EP0822265A3 EP97115279A EP97115279A EP0822265A3 EP 0822265 A3 EP0822265 A3 EP 0822265A3 EP 97115279 A EP97115279 A EP 97115279A EP 97115279 A EP97115279 A EP 97115279A EP 0822265 A3 EP0822265 A3 EP 0822265A3
Authority
EP
European Patent Office
Prior art keywords
percent
volume
layer
binder phase
nitrogen
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
EP97115279A
Other languages
German (de)
French (fr)
Other versions
EP0822265B1 (en
EP0822265A2 (en
Inventor
Keiichi Tsuda
Kazutaka Isobe
Akihiko Ikegaya
Nobuyuki Kitagawa
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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
Priority claimed from JP10558494A external-priority patent/JP3648758B2/en
Priority claimed from JP04929095A external-priority patent/JP3803694B2/en
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of EP0822265A2 publication Critical patent/EP0822265A2/en
Publication of EP0822265A3 publication Critical patent/EP0822265A3/en
Application granted granted Critical
Publication of EP0822265B1 publication Critical patent/EP0822265B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B22F3/101—Changing atmosphere
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1028—Controlled cooling
    • 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
    • B22F7/02—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 layers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/04—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/02—Nitrogen
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/20—Use of vacuum
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

A nitrogen-containing sintered hard alloy includes a hard phase containing WC serving as an essential element and a carbide, nitride or a carbo-nitride of at least one transition metal being selected from the groups 4,A 5A and 6A of the periodic table or a composite carbo-nitride thereof and a binder phase containing Ni, Co and unavoidable impurities, an exudation layer containing a metal binder phase, mainly composed of Ni and Co, and WC being present on an alloy of this part, wherein the exudation layer is internally divided into a three layers in order of an outermost layer and an intermediate layer and an lowermost layer, wherein the outermost layer containing at least 0 percent by volume and not more than 30 percent by volume of WC with a rest being formed by a metal binder phase, the intermediate layer contains at least 50 percent by volume and not more than 100 percent by volume of WC with a rest being formed by a metal binder phase, the lower layer containing at least 0 percent by volume and not more than 30 percent by volume of WC with a rest being formed by a metal binder phase, wherein the outermost and lowermost layers being at least 0.1 µm and not more than 10 µm in thickness, the intermediate layer being at least 0.5 µm and not more than 10 µm in thickness. According to this composition, it is possible to provide a nitrogen-containing sintered hard alloy which can be employed as a cutting tool having high reliability with no surface coating also in working under conditions bringing a strong thermal shock.
EP97115279A 1994-05-19 1995-05-18 Nitrogen-containing sintered hard alloy Expired - Lifetime EP0822265B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP10558494A JP3648758B2 (en) 1994-05-19 1994-05-19 Nitrogen-containing sintered hard alloy
JP105584/94 1994-05-19
JP10558494 1994-05-19
JP49290/95 1995-02-15
JP4929095 1995-02-15
JP04929095A JP3803694B2 (en) 1995-02-15 1995-02-15 Nitrogen-containing sintered hard alloy
EP95107670A EP0687744B1 (en) 1994-05-19 1995-05-18 Nitrogen-containing sintered hard alloy

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP95107670A Division EP0687744B1 (en) 1994-05-19 1995-05-18 Nitrogen-containing sintered hard alloy

Publications (3)

Publication Number Publication Date
EP0822265A2 EP0822265A2 (en) 1998-02-04
EP0822265A3 true EP0822265A3 (en) 1998-04-15
EP0822265B1 EP0822265B1 (en) 2001-10-17

Family

ID=26389670

Family Applications (2)

Application Number Title Priority Date Filing Date
EP95107670A Expired - Lifetime EP0687744B1 (en) 1994-05-19 1995-05-18 Nitrogen-containing sintered hard alloy
EP97115279A Expired - Lifetime EP0822265B1 (en) 1994-05-19 1995-05-18 Nitrogen-containing sintered hard alloy

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP95107670A Expired - Lifetime EP0687744B1 (en) 1994-05-19 1995-05-18 Nitrogen-containing sintered hard alloy

Country Status (3)

Country Link
EP (2) EP0687744B1 (en)
KR (1) KR0180522B1 (en)
DE (2) DE69513086T2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6110603A (en) * 1998-07-08 2000-08-29 Widia Gmbh Hard-metal or cermet body, especially for use as a cutting insert
DE19922057B4 (en) * 1999-05-14 2008-11-27 Widia Gmbh Carbide or cermet body and process for its preparation
EP1095168B1 (en) * 1998-07-08 2002-07-24 Widia GmbH Hard metal or ceramet body and method for producing the same
DE19845376C5 (en) * 1998-07-08 2010-05-20 Widia Gmbh Hard metal or cermet body
WO2005056854A1 (en) 2003-12-15 2005-06-23 Sandvik Intellectual Property Ab Cemented carbide tools for mining and construction applications and method of making the same
ATE389737T1 (en) 2003-12-15 2008-04-15 Sandvik Intellectual Property SINTERED CARBIDE INSERT AND METHOD FOR PRODUCING IT.
JP5062541B2 (en) * 2011-03-15 2012-10-31 住友電工ハードメタル株式会社 Cutting edge replacement type cutting tool
JP6548071B2 (en) * 2014-04-23 2019-07-24 三菱マテリアル株式会社 Surface coated cutting tool exhibiting excellent chipping resistance with hard coating layer
CN104399988B (en) * 2014-12-15 2016-06-15 技锋精密刀具（马鞍山）有限公司 A kind of ultra-thin little circular knife production system of hard alloy
JP6669471B2 (en) * 2015-11-02 2020-03-18 勝義 近藤 Method for producing nitrogen solid solution titanium sintered body
KR101863057B1 (en) * 2015-12-17 2018-06-01 한국야금 주식회사 Insert for cutting tools
CN114277299B (en) * 2021-12-28 2022-10-04 九江金鹭硬质合金有限公司 High-hardness hard alloy lath capable of resisting welding cracking

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277283A (en) * 1977-12-23 1981-07-07 Sumitomo Electric Industries, Ltd. Sintered hard metal and the method for producing the same
US4548786A (en) * 1983-04-28 1985-10-22 General Electric Company Coated carbide cutting tool insert
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
US4778521A (en) * 1986-02-20 1988-10-18 Hitachi Metals, Ltd. Tough cermet and process for producing the same
US4830930A (en) * 1987-01-05 1989-05-16 Toshiba Tungaloy Co., Ltd. Surface-refined sintered alloy body and method for making the same
EP0368336A2 (en) * 1988-11-11 1990-05-16 Mitsubishi Materials Corporation Cermet blade member for cutting-tools and process for producing same
US5106674A (en) * 1988-10-31 1992-04-21 Mitsubishi Materials Corporation Blade member of tungsten-carbide-based cemented carbide for cutting tools and process for producing same
EP0499223A1 (en) * 1991-02-13 1992-08-19 Toshiba Tungaloy Co. Ltd. High toughness cermet and process for preparing the same
EP0515340A2 (en) * 1991-05-24 1992-11-25 Sandvik Aktiebolag Titanium based carbonitride alloy with binder phase enrichment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE453202B (en) * 1986-05-12 1988-01-18 Sandvik Ab SINTER BODY FOR CUTTING PROCESSING
SE505425C2 (en) * 1992-12-18 1997-08-25 Sandvik Ab Carbide metal with binder phase enriched surface zone
US5577424A (en) * 1993-02-05 1996-11-26 Sumitomo Electric Industries, Ltd. Nitrogen-containing sintered hard alloy

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277283A (en) * 1977-12-23 1981-07-07 Sumitomo Electric Industries, Ltd. Sintered hard metal and the method for producing the same
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
US4548786A (en) * 1983-04-28 1985-10-22 General Electric Company Coated carbide cutting tool insert
US4778521A (en) * 1986-02-20 1988-10-18 Hitachi Metals, Ltd. Tough cermet and process for producing the same
US4830930A (en) * 1987-01-05 1989-05-16 Toshiba Tungaloy Co., Ltd. Surface-refined sintered alloy body and method for making the same
US5106674A (en) * 1988-10-31 1992-04-21 Mitsubishi Materials Corporation Blade member of tungsten-carbide-based cemented carbide for cutting tools and process for producing same
EP0368336A2 (en) * 1988-11-11 1990-05-16 Mitsubishi Materials Corporation Cermet blade member for cutting-tools and process for producing same
EP0499223A1 (en) * 1991-02-13 1992-08-19 Toshiba Tungaloy Co. Ltd. High toughness cermet and process for preparing the same
EP0515340A2 (en) * 1991-05-24 1992-11-25 Sandvik Aktiebolag Titanium based carbonitride alloy with binder phase enrichment

Also Published As

Publication number Publication date
EP0687744B1 (en) 1999-11-03
DE69513086D1 (en) 1999-12-09
KR0180522B1 (en) 1999-02-18
KR950032671A (en) 1995-12-22
EP0822265B1 (en) 2001-10-17
DE69523342D1 (en) 2001-11-22
DE69513086T2 (en) 2000-07-13
EP0687744A2 (en) 1995-12-20
EP0822265A2 (en) 1998-02-04
DE69523342T2 (en) 2002-06-27
EP0687744A3 (en) 1996-08-21

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