EP0563203B1 - Verfahren zur herstellung einer gesinterten karbonitridlegierung zur intermittierenden bearbeitung schwer bearbeitbarer materialien - Google Patents

Verfahren zur herstellung einer gesinterten karbonitridlegierung zur intermittierenden bearbeitung schwer bearbeitbarer materialien Download PDF

Info

Publication number
EP0563203B1
EP0563203B1 EP92901893A EP92901893A EP0563203B1 EP 0563203 B1 EP0563203 B1 EP 0563203B1 EP 92901893 A EP92901893 A EP 92901893A EP 92901893 A EP92901893 A EP 92901893A EP 0563203 B1 EP0563203 B1 EP 0563203B1
Authority
EP
European Patent Office
Prior art keywords
carbonitride
alloy
metals
complex
carbon
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 - Lifetime
Application number
EP92901893A
Other languages
English (en)
French (fr)
Other versions
EP0563203A1 (de
Inventor
Gerold Weinl
Rolf Oskarsson
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 EP0563203A1 publication Critical patent/EP0563203A1/de
Application granted granted Critical
Publication of EP0563203B1 publication Critical patent/EP0563203B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C22C29/04—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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/09—Mixtures of metallic powders
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling

Definitions

  • the present invention relates to a method of producing a sintered carbonitride alloy with titanium as main constituent particularly suited for intermittent machining of materials difficult to machine.
  • Sintered carbonitride alloys based on mainly titanium usually referred to as cermets have during the last years increased their use at the expense of more traditional cemented carbide i.e. tungsten carbide based alloys.
  • US 3,971,656 discloses the production of an alloy with a duplex hard constituent where the core has a high content of Ti and N and the surrounding rim has a lower content of these two elements which is compensated for by a higher content of group VI metals i.e. in principle Mo and W and by higher carbon content.
  • group VI metals i.e. in principle Mo and W and by higher carbon content.
  • the higher content of Mo, W and C has inter alia the advantage that the wetting against the binderphase is improved i.e. the sintering is facilitated.
  • As a raw material a carbonitride of titanium and a group VI metal is used.
  • EP-A-259192 discloses a sintered alloy comprising a mixed carbonitride of titanium and at least one element from the group consisting of group IV, V and VI elements except titanium in a binder phase based on Co and/or Ni.
  • the alloy is produced by mixing powders of the hard constituents, heating the mixture in a nitrogen atmosphere at a temperature of at least the sintering temperature to form a complex carbonitride solid solution comprising also the group VI element(s), milling said solid solution to obtain a carbonitride powder which is mixed with Co and/or Ni and sintered.
  • the invention is defined in claim 1.
  • titanium and tantalum shall be present in the raw material according to the invention.
  • vanadium, niobium and suitably also zirconium and hafnium are present in the complex carbonitride form if they are part of the finished sintered alloy.
  • the raw material accordinging to the invention is produced directly by carbonitriding of the oxides of the metals or the metals themselves.
  • a carbonitride powder with essentially equiaxial grains and a narrow grain size distribution is obtained with a mean grain size of 0.8 - 3 ⁇ m, preferably 1 - 2 ⁇ m.
  • the invention thus relates to a method of producing a titanium based carbonitride alloy with 3-25 % by weight binderphase based on Co, Ni and/or Fe using the above mentioned complex raw material.
  • This raw material is milled together with carbides from group VI, if any, and binderphase elements and carbon addition, if any, and minor additions of e.g. TiC, TiN, TaC, VC or combinations thereof due to small deviations in composition of the complex raw material whereafter compaction and sintering, preferably in an inert atmosphere, is performed according to known technique.
  • Fig 1 shows the 'window' in the composition diagram for Group IV-Group V - C-N, expressed in molar ratio, of the complex raw material which shows the above mentioned advantages in high magnification, whereas fig 2 shows where in the total molar ratio diagram this small area is situated.
  • Group IV metals are Ti, Zr and/or Hf and Group V metals are V, Nb and/or Ta.
  • the window comprises the composition area: 0.84 ⁇ X IV ⁇ 0.97 0.44 ⁇ X C ⁇ 0.55 and in particular: 0.86 ⁇ X IV ⁇ 0.95 0.46 ⁇ X C ⁇ 0.53
  • the latter restricted window can be divided into two, one without other group V metals than Ta: 0.905 ⁇ X IV ⁇ 0.95 0.46 ⁇ X C ⁇ 0.53 and another one with other group V elements than Ta i.e. V and Nb: 0.86 ⁇ X IV ⁇ 0.905 0.46 ⁇ X C ⁇ 0.53
  • the invention comprises stoichiometric as well as usually substoichiometric carbonitrides.
  • Titanium-based carbonitride alloys with 17.5 % Ni+Co binder phase were produced with the use of a complex raw material according to the invention (Ti 0.88 , Ta 0.06 , Nb 0.06 ) (C 0.51 , N 0.49 ) as well as with the use of simple raw material: TiN, TiC and VC. In both cases also WC and Mo 2 C were added in addition to Co and Ni. The following compaction pressure and porosity after milling and sintering to the same grain size were obtained: Compaction Porosity pressure, N/mm 2 Alloy according to the invention A00 154 Simple raw materials A06-A08 206 B04

Landscapes

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

Claims (1)

  1. Verfahren zur Herstellung eines gesinterten Carbonitridlegierung auf Titanbasis für Feinbearbeitung mit 3 bsi 25 Gew. % Bindephase durch Vermahlen, Pressen und Sintern eines Pulvergemisches nach bekannter pulvermetallurgischer Technik, wobei der Hauptteil des Pulvergemisches ein komplexes kubisches Carbonitridpulver ist, das aus Metallen der Gruppen IV und V des Periodensystems sowie Kohlenstoff und Stickstoff besteht, wobei mehr als 95 % der Menge dieser Metalle in der fertigen Legierung aus diesem komplexen Carbontrid kommen und dieses komplexe Carbonitrid die Zusammensetzung 0,86 ≤ X IV ≤ 0,97
    Figure imgb0015
     0,44 ≤ X C ≤ 0,55
    Figure imgb0016
     hat, worin XIV der molare Anteil der Elemente der Gruppe IV ist und XC der molare Anteil von Kohlenstoff ist, das komplexe Carbonitrid im wesentlichen äquiaxiale Körner mit einer engen Korngrößenverteilung mit einer mittleren Korngröße von 0,8 bis 3 µm umfaßt und das komplexe Carbonitrid indirekt durch Carbonitrierung der Oxide der Metalle oder der Metalle selbst erhalten wird.
EP92901893A 1990-12-21 1991-12-19 Verfahren zur herstellung einer gesinterten karbonitridlegierung zur intermittierenden bearbeitung schwer bearbeitbarer materialien Expired - Lifetime EP0563203B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9004119A SE9004119D0 (sv) 1990-12-21 1990-12-21 Saett foer framstaellning av en sintrad karbonitridlegering foer intermittent bearbetning av svaarbearbetade material
SE9004119 1990-12-21
PCT/SE1991/000888 WO1992011396A1 (en) 1990-12-21 1991-12-19 Method of producing a sintered carbonitride alloy for intermittent machining of materials difficult to machine

Publications (2)

Publication Number Publication Date
EP0563203A1 EP0563203A1 (de) 1993-10-06
EP0563203B1 true EP0563203B1 (de) 1997-04-09

Family

ID=20381289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92901893A Expired - Lifetime EP0563203B1 (de) 1990-12-21 1991-12-19 Verfahren zur herstellung einer gesinterten karbonitridlegierung zur intermittierenden bearbeitung schwer bearbeitbarer materialien

Country Status (6)

Country Link
EP (1) EP0563203B1 (de)
JP (1) JPH06504588A (de)
AT (1) ATE151473T1 (de)
DE (1) DE69125626T2 (de)
SE (1) SE9004119D0 (de)
WO (1) WO1992011396A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002221127A1 (en) * 2000-12-19 2002-07-01 Honda Giken Kogyo Kabushiki Kaisha Composite material
CN109338196B (zh) * 2018-11-30 2020-12-11 岭南师范学院 Ti(C，N)基金属陶瓷及其制备方法和应用

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU501073B2 (en) * 1974-10-18 1979-06-07 Sumitomo Electric Industries, Ltd. Cemented carbonitride alloys
US4769070A (en) * 1986-09-05 1988-09-06 Sumitomo Electric Industries, Ltd. High toughness cermet and a process for the production of the same

Also Published As

Publication number Publication date
EP0563203A1 (de) 1993-10-06
WO1992011396A1 (en) 1992-07-09
DE69125626D1 (de) 1997-05-15
DE69125626T2 (de) 1997-07-24
SE9004119D0 (sv) 1990-12-21
JPH06504588A (ja) 1994-05-26
ATE151473T1 (de) 1997-04-15

Similar Documents

Publication Publication Date Title
EP0406201B1 (de) Gesinterte Carbonitridlegierung
EP0374358B1 (de) Hochfester, Stickstoff enthaltender Cermet und Verfahren zu seiner Herstellung
EP0515341B1 (de) Gesinterte Karbonitridlegierung mit hochlegierter Bindemetallphase
EP0302635B1 (de) Verbundlegierung
EP0417333B1 (de) Cermet und dessen Herstellungsverfahren
US5421851A (en) Sintered carbonitride alloy with controlled grain size
EP0591121B1 (de) Carbonitridlegierung auf Titanbasis mit gesteuerter Struktur
EP0586352B1 (de) Verfahren zur Herstellung einer gesinterten Karbonitridenlegierung mit verbesserter Zähigkeit
EP0578031B1 (de) Gesinterte Karbonitridlegierung und Verfahren zu ihrer Herstellung
EP0563204B1 (de) Verfahren zur herstellung einer gesinterten karbonitridlegierung zum feinfräsen
EP0563203B1 (de) Verfahren zur herstellung einer gesinterten karbonitridlegierung zur intermittierenden bearbeitung schwer bearbeitbarer materialien
EP0563182B1 (de) Verfahren zur herstellung einer gesinterten karbonitridlegierung zum fein bis mittelfeinfräsen
EP0563160B1 (de) Verfahren zur herstellung einer gesinterten karbonitridlegierung für die extrem-feinbearbeitung beim drehen mit hohen schneidraten
EP0563205B1 (de) Verfahren zur herstellung einer gesinterten karbonitridlegierung zur groben bearbeitung
US5552108A (en) Method of producing a sintered carbonitride alloy for extremely fine machining when turning with high cutting rates
US5581798A (en) Method of producing a sintered carbonitride alloy for intermittent machining of materials difficult to machine
EP0775755A1 (de) Verschleissfester Karbonitrid-Cermet Schneidkörper
JP3227774B2 (ja) 耐摩耗性のすぐれたＴｉ系炭窒硼酸化物基サーメット製切削工具

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19930616

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE FR GB IT SE

17Q First examination report despatched

Effective date: 19950911

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT SE

REF Corresponds to:

Ref document number: 151473

Country of ref document: AT

Date of ref document: 19970415

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

REF Corresponds to:

Ref document number: 69125626

Country of ref document: DE

Date of ref document: 19970515

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20001206

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001211

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20001212

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20001213

Year of fee payment: 10

Ref country code: AT

Payment date: 20001213

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011219

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011220

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

EUG Se: european patent has lapsed

Ref document number: 92901893.5

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20011219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020830

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051219