EP0563160A1 - Verfahren zur herstellung einer gesinterten karbonitridlegierung für die extrem-feinbearbeitung beim drehen mit hohen schneidraten. - Google Patents

Verfahren zur herstellung einer gesinterten karbonitridlegierung für die extrem-feinbearbeitung beim drehen mit hohen schneidraten.

Info

Publication number
EP0563160A1
EP0563160A1 EP92901527A EP92901527A EP0563160A1 EP 0563160 A1 EP0563160 A1 EP 0563160A1 EP 92901527 A EP92901527 A EP 92901527A EP 92901527 A EP92901527 A EP 92901527A EP 0563160 A1 EP0563160 A1 EP 0563160A1
Authority
EP
European Patent Office
Prior art keywords
alloy
raw material
carbonitride
metals
producing
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
EP92901527A
Other languages
English (en)
French (fr)
Other versions
EP0563160B1 (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 EP0563160A1 publication Critical patent/EP0563160A1/de
Application granted granted Critical
Publication of EP0563160B1 publication Critical patent/EP0563160B1/de
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
    • C22C29/04—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 for extremely fine machining when turning with high cutting rates.
  • 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.
  • the surrounding rims have higher contents of group VI-metals, i.e. molybdenum and tungsten and higher contents of nitrogen than the cores. This leads inter alia to an improved resistance against plastic deformation.
  • 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 solid solution, milling said solid solution to obtain a carbonitride powder which is mixed with Co and/or Ni and sintered.
  • carbonitride alloys are produced using complex cubic
  • the metals at least two preferably at least three from the groups IV and V in addition to carbon and nitrogen being part of the finished sintered carbonitride alloy unique structures as well as unique properties are obtained.
  • titanium and tantalum shall be present in the raw material according to the invention.
  • vanadium, niobium and suitably also zirconium and hafnium are present if they are part of the finished sintered alloy.
  • Metals from group VI, Cr, Mo and W shall, if they are present, be added as multiple carbides, single carbides and/or as metal+carbon, but they may also be part of the raw material according to the invention provided that the raw material remains cubic.
  • the raw material accordinging to the invention is produced directly by carbonitriding of the oxides of the metals or the metals themselves. As a result a carbonitride powder with essentially equiaxial grains and a narrow grain size distribution is
  • the invention thus relates to a method of producing a titanium based carbonitride alloy with 3-25 % by weight binder phase 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 binder phase 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. As is evident from figure 1 the window comprises the
  • composition area :
  • the latter restricted window can be divided into two, one without other group V metals than Ta:
  • Titanium-based carbonitride alloys with 14 % Ni+Co binder phase were produced with the use of a complex raw material according to the invention (Ti 0 . 90 ,Ta 0.03 ,V 0.07 ) (C 0.79 ,N 0.21 ) 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:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Ceramic Products (AREA)
EP92901527A 1990-12-21 1991-12-19 Verfahren zur herstellung einer gesinterten karbonitridlegierung für die extrem-feinbearbeitung beim drehen mit hohen schneidraten Expired - Lifetime EP0563160B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9004116A SE469385B (sv) 1990-12-21 1990-12-21 Saett att framstaella en sintrad karbonitridlegering foer finbearbetning vid svarvning
SE9004116 1990-12-21
PCT/SE1991/000885 WO1992011393A1 (en) 1990-12-21 1991-12-19 Method of producing a sintered carbonitride alloy for extremely fine machining when turning with high cutting rates

Publications (2)

Publication Number Publication Date
EP0563160A1 true EP0563160A1 (de) 1993-10-06
EP0563160B1 EP0563160B1 (de) 1997-04-09

Family

ID=20381286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92901527A Expired - Lifetime EP0563160B1 (de) 1990-12-21 1991-12-19 Verfahren zur herstellung einer gesinterten karbonitridlegierung für die extrem-feinbearbeitung beim drehen mit hohen schneidraten

Country Status (6)

Country Link
EP (1) EP0563160B1 (de)
JP (1) JPH06503856A (de)
AT (1) ATE151472T1 (de)
DE (1) DE69125624T2 (de)
SE (1) SE469385B (de)
WO (1) WO1992011393A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2420768A1 (de) * 1973-06-18 1975-01-09 Teledyne Ind Karbonitridlegierungen fuer schneidwerkzeuge und verschleissteile
AU501073B2 (en) * 1974-10-18 1979-06-07 Sumitomo Electric Industries, Ltd. Cemented carbonitride alloys
US4127596A (en) * 1977-04-11 1978-11-28 The Upjohn Company Non-aromatic oxygenated strong acid dehydration of 9α-hydroxyandrostenediones
JPS565946A (en) * 1979-06-28 1981-01-22 Sumitomo Electric Ind Ltd Sintered hard alloy and its manufacture
JPS60181079A (ja) * 1984-02-28 1985-09-14 Sanyo Chem Ind Ltd ３−置換−２−オキサゾリジノン化合物の製造法
US4769070A (en) * 1986-09-05 1988-09-06 Sumitomo Electric Industries, Ltd. High toughness cermet and a process for the production of the same
PT87687B (pt) * 1987-06-12 1992-09-30 Gist Brocades Nv Processo para a preparacao de esteroides de 9(11)-dehidro
US5041399A (en) * 1989-03-07 1991-08-20 Sumitomo Electric Industries, Ltd. Hard sintered body for tools

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9211393A1 *

Also Published As

Publication number Publication date
DE69125624T2 (de) 1997-07-17
DE69125624D1 (de) 1997-05-15
SE9004116D0 (sv) 1990-12-21
WO1992011393A1 (en) 1992-07-09
JPH06503856A (ja) 1994-04-28
EP0563160B1 (de) 1997-04-09
ATE151472T1 (de) 1997-04-15
SE9004116L (sv) 1992-06-22
SE469385B (sv) 1993-06-28

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