EP1364732B1 - Hartmetallbauteil mit gradiertem Aufbau - Google Patents

Hartmetallbauteil mit gradiertem Aufbau Download PDF

Info

Publication number
EP1364732B1
EP1364732B1 EP03008539A EP03008539A EP1364732B1 EP 1364732 B1 EP1364732 B1 EP 1364732B1 EP 03008539 A EP03008539 A EP 03008539A EP 03008539 A EP03008539 A EP 03008539A EP 1364732 B1 EP1364732 B1 EP 1364732B1
Authority
EP
European Patent Office
Prior art keywords
structural part
production
part according
dispersion
carbide
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
EP03008539A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1364732A2 (de
EP1364732A3 (de
Inventor
Johannes Glätzle
Rolf Dr. Kösters
Wolfgang Dr. Glätzle
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.)
Ceratizit Austria GmbH
Original Assignee
Ceratizit Austria GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3485393&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1364732(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ceratizit Austria GmbH filed Critical Ceratizit Austria GmbH
Publication of EP1364732A2 publication Critical patent/EP1364732A2/de
Publication of EP1364732A3 publication Critical patent/EP1364732A3/de
Application granted granted Critical
Publication of EP1364732B1 publication Critical patent/EP1364732B1/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
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a powder metallurgically produced component made of a hard metal alloy with a binder content of 0.1 to 20 wt.%, Which contains at least one grain growth inhibiting additive and a process for its preparation.
  • hard metal is meant a composite material consisting essentially of a carbide component and a binder.
  • carbide components are the carbides or mixed carbides of the metals W, Ti, Zr, Hf, V, Nb, Ta, Mo and Cr.
  • Typical binder metals are Co, Ni and Fe.
  • additives of other hard materials, such as carbonitrides, are used.
  • the properties of hard metals are determined by the ratio of carbide content to binder content, chemical composition, carbide grain size and carbide grain size distribution. This opens up many possibilities to adapt the properties of carbide to the respective field of application.
  • increasing binder content improves fracture toughness and flexural strength while reducing hardness, stiffness and compressive strength.
  • a reduction in the carbide grain size leads to an increase in hardness, compressive and flexural strength, with reduced impact and fracture toughness.
  • carbide powders in the particle size range 0.2 ⁇ m to 15 ⁇ m are used today for the production of carbide components.
  • grain growth inhibitors are added.
  • the most effective grain growth inhibiting additives are vanadium carbide, chromium carbide, titanium carbide, tantalum carbide and niobium carbide.
  • two or more additives are used, such as mixtures of VC and Cr 3 C 2 or TaC, NbC and TiC.
  • the grain growth inhibiting additive can thereby already be finely distributed in the main component before or during the carburization.
  • the effectiveness is also present when the grain growth inhibitor is added to the hard metal powder or individual constituents of the hard metal powder before, during or after the grinding.
  • Hard metal components can be locally loaded very differently. Therefore, early solutions have been known or implemented, based on a composite material of two or more hard metal alloys. That's how it describes US 5,543,235 a cemented carbide material composite produced by powder metallurgy composite pressing, wherein the individual material regions differ by their composition or microstructure.
  • a rotating composite tool which is composed of two hard metal alloys, is also in the PCT / US00 / 33644 described. The preparation is also preferably via composite presses.
  • Another process technique for producing a hard metal composite body is based on U.S. 5,594,931 out.
  • a slurry is applied, which consists of a powder mixture, a solvent, a binder and a plasticizer.
  • the composite green compact produced in this way is compacted by sintering.
  • a disadvantage of the material composites described here is that in the areas of the composite body, where materials meet with different properties, stress concentrations arise. Furthermore, it has to be considered that every material component has its own sintering behavior. This can cause a distortion of the component during sintering.
  • compositionally graded structure is meant that the composition changes gradually over a range of grades.
  • coated carbide graded versions are in the area of the layer, in the transition area Layer / base material and in the neighboring base material has long been known. This grading is achieved, for example, by the addition of carbonitrides.
  • the metallic carbide or nitride forming elements diffuse towards the center of the carbide body. This achieves a binder enrichment in the region of the edge zone and a graded transition to the matrix composition.
  • indexable inserts with a binder-rich edge zone, adjacent to the hard material layer have long been used for steel cutting.
  • the grading is limited to a small, near-surface area.
  • binder metals such as cobalt
  • a method is for example in the EP 0 871 556 described.
  • a composite consisting of at least two areas differing in binder content is produced by composite pressing.
  • the temperature should be adjusted so that the binder metal diffuses from the higher binder content composite region to the lower binder content composite region.
  • the disadvantage is that the sintering temperature is set very accurately, so as not to achieve a complete concentration balance and thus loss of different material properties.
  • the composite pressing is associated with higher production costs, as is the case in the production of a monolithic green body.
  • This object is achieved by a method for producing a component from a hard metal alloy according to claim 1.
  • the graded concentration course of the grain growth inhibiting additive leads to a graded course of the carbide grain size. Subsequently, the mechanical properties also show a graded course. This is advantageous, for example, where a high level of wear resistance and bending strength at the surface and at the same time a high level of toughness in the core is required, for example in the case of forming tools or tools for diamond production.
  • the concentration profile of the grain growth-inhibiting additive is adjusted so that in the region of the edge zone, the concentration values are higher and these decrease towards the center of the component, the edge zone is fine-grained, with a graded transition to the coarse-grained center.
  • ком ⁇ онент with excellent wear resistance and bending strength in the region of the edge zone, combined with a high toughness of the center can be produced. These have improved tool life.
  • a high fracture toughness in the region of the edge zone may be advantageous. This is achieved by a reduced content of grain growth inhibiting additive in the region of the edge zone.
  • Advantageous grain growth inhibiting additives are vanadium and chromium compounds, the maximum concentration being 2% by weight. Higher levels lead to embrittlement effects.
  • a particularly advantageous process is the superficial application of a dispersion or solution on a green body.
  • the dispersion contains the grain growth inhibiting additive in very finely divided form.
  • the green compact can be in the as-pressed state. If the green compact contains waxing or plasticizing agent additives, it can also be present in the dewaxed or partially dewaxed state, in accordance with an advantageous embodiment of the present invention.
  • the application of the dispersion or solution can be done for example by dipping, spraying or brushing. Subsequently, the dispersion or solution penetrates into the interior of the green body along open pore channels.
  • the reaction time and the content of the dispersion or solution of grain growth inhibiting additive essentially determine the amount introduced or the penetration depth.
  • the carbide component of the green body has a mean particle size of less than 2 microns.
  • Fig. 1 shows the vanadium content over the sample cross-section.
  • Fig.2 In addition to the vanadium content, the carbide grain size is indicated.
  • Figure 3 and Fig. 5 each show the hardness profile over the sample cross-section.
  • Fig. 4 schematically shows the cross section of a drawing tool.
  • Fig. 1 and Fig. 2 refer to Example 1, Fig. 3 on example 2, Fig. 4 and Fig. 5 on example 3.
  • the greenlings were subjected to a usual eviscerating process.
  • the green compacts were immersed for 5 seconds in the above-described dispersion and then dried in air at 50 ° C.
  • Fig. 1 shows that the vanadium content in the region of the edge zone is 0.24% by weight and this value gradually decreases inwards over the cross section of the sample.
  • the vanadium content at a distance of 3.8 mm from the sample edge is 0.08 wt.%.
  • the corresponding vanadium concentrations were below the detection limit of the microprobe.
  • the graded vanadium distribution leads to a graded grain stabilization effect, as does the WC grain size values in Fig. 2 document. As the average grain size increases from the edge zone towards the center, the corresponding hardness values decrease, as in FIG Fig. 3 is shown.
  • a cemented carbide approach with 89.5 wt.% WC having an average grain size of 0.8 micron, 0.5 wt.% Cr 3 C 2, balance Co was prepared according to the usual method in the hard metal industry.
  • the greenlings were subjected to a usual eviscerating process.
  • a dispersion of distilled water and V 2 O 5 was prepared, the solid content being 2% by weight and the average V 2 O 5 particle size being less than 50 nm.
  • the green compacts were immersed for 5 seconds in the above-described dispersion and then dried in air at 50 ° C.
  • samples were sintered with reference green sheets that were not aftertreated at a temperature of 1400 ° C under vacuum.
  • the analysis of the samples was carried out by electron beam microprobe, the microstructural and mechanical characterization by a light microscopic examination or hardness test.
  • the samples according to the invention again show a graded vanadium concentration course, with a marginal zone value of 0.21 wt.% V and a center value of 0.03 wt.% V.
  • the corresponding hardness values are 1698 HV30 or 1648 HV30.
  • the hardness curve is in Figure 3 played.
  • the reference sample shows a uniform hardness profile over the cross section with an average value of 1605 HV30.
  • the samples according to the invention and the reference samples were also subjected to a bending test.
  • the mean value of ten measurements is 3950 MPa for the samples according to the invention and 3500 MPa for the comparative samples.
  • a hard metal batch with 93.4 wt.% WC with an average particle size of 2.0 .mu.m, 0.2 wt.% TiC, 0.4 wt.% TaC / NbC, remainder Co was prepared according to the methods customary in the hard metal industry. Cylindrical green compacts were produced by isostatic pressing with a compacting pressure of 100 MPa, which were formed by mechanical machining into a hard metal drawing tool. The greenlings were subjected to a usual eviscerating process. In turn, a dispersion of distilled water and V 2 O 5 was prepared, wherein the solids content was 2 wt.%, With a particle size of dispersed V 2 O 5 particles of less than 50 nm.
  • Fig. 4 shows the area where the characterization was done by electron microprobe and hardness testing.
  • the vanadium content in the edge zone is 0.18 wt.%, At a distance of 2 mm from the sample edge only 0.11 wt.%.
  • Fig. 5 shows the gradual hardness curve.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
EP03008539A 2002-04-17 2003-04-14 Hartmetallbauteil mit gradiertem Aufbau Expired - Lifetime EP1364732B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0024502U AT5837U1 (de) 2002-04-17 2002-04-17 Hartmetallbauteil mit gradiertem aufbau
AT2452002U 2002-04-17

Publications (3)

Publication Number Publication Date
EP1364732A2 EP1364732A2 (de) 2003-11-26
EP1364732A3 EP1364732A3 (de) 2005-12-21
EP1364732B1 true EP1364732B1 (de) 2008-03-05

Family

ID=3485393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03008539A Expired - Lifetime EP1364732B1 (de) 2002-04-17 2003-04-14 Hartmetallbauteil mit gradiertem Aufbau

Country Status (7)

Country Link
US (2) US20040009088A1 (he)
EP (1) EP1364732B1 (he)
JP (1) JP2003328067A (he)
CN (1) CN100482836C (he)
AT (2) AT5837U1 (he)
DE (1) DE50309292D1 (he)
IL (1) IL155430A (he)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7385889B2 (en) * 2003-03-03 2008-06-10 Samsung Electronics Co., Ltd. Method and apparatus for managing disc defect using temporary DFL and temporary DDS including drive and disc information disc with temporary DFL and temporary DDS
JP4313587B2 (ja) * 2003-03-03 2009-08-12 株式会社タンガロイ 超硬合金及び被覆超硬合金部材並びにそれらの製造方法
US7506109B2 (en) * 2003-05-09 2009-03-17 Lg Electronics Inc. Recording medium having data structure for managing at least a data area of the recording medium and recording and reproducing methods and apparatuses
PT1548136E (pt) * 2003-12-15 2008-06-12 Sandvik Intellectual Property Ferramenta de carboneto cementado e método para a sua produção
EP1697551B1 (en) * 2003-12-15 2015-07-22 Sandvik Intellectual Property AB Cemented carbide tools for mining and construction applications and method of making the same
US7634582B2 (en) * 2003-12-19 2009-12-15 Intel Corporation Method and architecture for optical networking between server and storage area networks
DE102004034312A1 (de) * 2004-07-15 2006-02-02 Mtu Aero Engines Gmbh Dichtungsanordnung und Verfahren zur Herstellung eines Dichtkörpers für eine Dichtungsanordnung
DE04090325T1 (de) * 2004-08-24 2006-06-22 Tungaloy Corporation, Kawasaki Hartmetall, beschichtetes Hartmetallteil und Verfahren zu dessen Herstellung
CN100419105C (zh) * 2005-02-04 2008-09-17 李北 一种金属陶瓷材料及其成型工艺
WO2009111749A1 (en) * 2008-03-07 2009-09-11 University Of Utah Thermal degradation and crack resistant functionally graded cemented tungsten carbide and polycrystalline diamond
SE532704C2 (sv) * 2008-03-31 2010-03-23 Atlas Copco Secoroc Ab Förfarande för att öka segheten av stift för ett bergborrverktyg.
DE102008040094A1 (de) 2008-07-02 2009-01-29 Basf Se Verfahren zur Herstellung eines oxidischen geometrischen Formkörpers
DE102008040093A1 (de) 2008-07-02 2008-12-18 Basf Se Verfahren zur Herstellung eines ringähnlichen oxidischen Formkörpers
EP2184122A1 (en) 2008-11-11 2010-05-12 Sandvik Intellectual Property AB Cemented carbide body and method
CN101429618B (zh) * 2008-11-21 2012-10-31 嘉应学院 型内熔化扩散形成梯度耐磨材料及其制造方法
AT13536U1 (de) * 2013-05-07 2014-02-15 Plansee Se Verfahren zur Herstellung eines Formkörpers und damit herstellbarer Formkörper
KR102231553B1 (ko) * 2013-05-31 2021-03-23 산드빅 인터렉츄얼 프로퍼티 에이비 초경합금의 신규 제조 방법 및 그로부터 획득되는 제품
IN2013CH04500A (he) 2013-10-04 2015-04-10 Kennametal India Ltd
CN104404283B (zh) * 2014-12-15 2017-01-04 中南大学 一种直接添加难熔金属制备梯度硬质合金的方法
CN104988372B (zh) * 2015-08-06 2017-04-26 广东工业大学 一种表面软化的梯度硬质合金及其制备方法
RU2746537C2 (ru) * 2016-09-28 2021-04-15 Сандвик Интеллекчуал Проперти Аб Вставка долота для бурения
CN108480624B (zh) * 2018-04-13 2019-09-13 昆明理工大学 一种粉末递增压制装置及压制方法
EP3653743A1 (en) * 2018-11-14 2020-05-20 Sandvik Mining and Construction Tools AB Binder redistribution within a cemented carbide mining insert
WO2020127684A1 (en) * 2018-12-20 2020-06-25 Ab Sandvik Coromant Coated cutting tool
ES2912991T3 (es) * 2019-07-10 2022-05-30 Sandvik Mining And Construction Tools Ab Cuerpo de carburo cementado con gradiente y método de fabricación del mismo
CN111069610A (zh) * 2019-12-20 2020-04-28 株洲硬质合金集团有限公司 一种梯度结构硬质合金球齿及其制备方法
EP3909707A1 (en) * 2020-05-14 2021-11-17 Sandvik Mining and Construction Tools AB Method of treating a cemented carbide mining insert
DE102020120576A1 (de) * 2020-08-04 2022-02-10 Hauni Maschinenbau Gmbh Hartmetallmesser für Strangschnitt und Messerhalter
JP6957828B1 (ja) * 2020-10-30 2021-11-02 住友電工ハードメタル株式会社 超硬合金及びそれを備える切削工具
CN114737097B (zh) * 2022-04-27 2022-12-09 山东大学 一种三层梯度结构硬质合金及其制备方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101703A (en) * 1972-02-04 1978-07-18 Schwarzkopf Development Corporation Coated cemented carbide elements
US4610931A (en) * 1981-03-27 1986-09-09 Kennametal Inc. Preferentially binder enriched cemented carbide bodies and method of manufacture
EP0111600A1 (en) 1982-12-13 1984-06-27 Reed Rock Bit Company Improvements in or relating to cutting tools
DE3574738D1 (de) * 1984-11-13 1990-01-18 Santrade Ltd Gesinterte hartmetallegierung zum gesteinsbohren und zum schneiden von mineralien.
SE456428B (sv) 1986-05-12 1988-10-03 Santrade Ltd Hardmetallkropp for bergborrning med bindefasgradient och sett att framstella densamma
US5116416A (en) 1988-03-11 1992-05-26 Vermont American Corporation Boron-treated hard metal
JP3046336B2 (ja) * 1990-09-17 2000-05-29 東芝タンガロイ株式会社 傾斜組成組識の焼結合金及びその製造方法
JP3080983B2 (ja) 1990-11-21 2000-08-28 東芝タンガロイ株式会社 傾斜組成組織の硬質焼結合金及びその製造方法
SE500049C2 (sv) 1991-02-05 1994-03-28 Sandvik Ab Hårdmetallkropp med ökad seghet för mineralavverkning samt sätt att framställa denna
US5431239A (en) * 1993-04-08 1995-07-11 Tibbitts; Gordon A. Stud design for drill bit cutting element
US5494635A (en) * 1993-05-20 1996-02-27 Valenite Inc. Stratified enriched zones formed by the gas phase carburization and the slow cooling of cemented carbide substrates, and methods of manufacture
US6073518A (en) * 1996-09-24 2000-06-13 Baker Hughes Incorporated Bit manufacturing method
US5543235A (en) 1994-04-26 1996-08-06 Sintermet Multiple grade cemented carbide articles and a method of making the same
US5945167A (en) * 1994-10-27 1999-08-31 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing composite material
US5762843A (en) 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US5594931A (en) * 1995-05-09 1997-01-14 Newcomer Products, Inc. Layered composite carbide product and method of manufacture
US5623723A (en) * 1995-08-11 1997-04-22 Greenfield; Mark S. Hard composite and method of making the same
US6495115B1 (en) * 1995-09-12 2002-12-17 Omg Americas, Inc. Method to produce a transition metal carbide from a partially reduced transition metal compound
SE513740C2 (sv) * 1995-12-22 2000-10-30 Sandvik Ab Slitstark hårmetallkropp främst för användning vid bergborrning och mineralbrytning
JPH10138027A (ja) * 1996-11-11 1998-05-26 Shinko Kobelco Tool Kk ドリル用超硬合金および該合金を用いたプリント基板穿孔用ドリル
DE19752289C1 (de) 1997-11-26 1999-04-22 Hartmetall Beteiligungs Gmbh Gesinterter Hartmetall-Formkörper
WO2000038864A1 (en) * 1998-12-23 2000-07-06 De Beers Industrial Diamond Division (Proprietary) Limited Abrasive body
US6511265B1 (en) 1999-12-14 2003-01-28 Ati Properties, Inc. Composite rotary tool and tool fabrication method
DE10135790B4 (de) * 2001-07-23 2005-07-14 Kennametal Inc. Feinkörniges Sinterhartmetall und seine Verwendung
US6869460B1 (en) * 2003-09-22 2005-03-22 Valenite, Llc Cemented carbide article having binder gradient and process for producing the same

Also Published As

Publication number Publication date
CN1480543A (zh) 2004-03-10
IL155430A0 (en) 2003-11-23
CN100482836C (zh) 2009-04-29
EP1364732A2 (de) 2003-11-26
DE50309292D1 (de) 2008-04-17
US20080075621A1 (en) 2008-03-27
JP2003328067A (ja) 2003-11-19
ATE387978T1 (de) 2008-03-15
AT5837U1 (de) 2002-12-27
US20040009088A1 (en) 2004-01-15
EP1364732A3 (de) 2005-12-21
US7537726B2 (en) 2009-05-26
IL155430A (he) 2009-05-04

Similar Documents

Publication Publication Date Title
EP1364732B1 (de) Hartmetallbauteil mit gradiertem Aufbau
EP3426813B1 (de) Zerspanungswerkzeug
DE602004012521T2 (de) Sinterkarbideinsatz und Method zu dessen Herstellung.
DE3346873C2 (he)
EP3247813B1 (de) Hartmetall-cermet-verbundwerkstoff und verfahren zu dessen herstellung
DE10356470B4 (de) Zirkonium und Niob enthaltender Hartmetallkörper und Verfahren zu seiner Herstellung und seine Verwendung
DE69728786T2 (de) Pulver auf eisenbasis
DE69433214T2 (de) Stickstoff enthaltende hartgesinterte Legierung
DE19907749A1 (de) Gesinterter Hartmetallkörper und dessen Verwendung
EP3426814B1 (de) Zerspanungswerkzeug
WO2017186468A1 (de) Hartmetall mit zähigkeitssteigerndem gefüge
DE69915304T2 (de) Insert aus zementiertem karbid mit binderangereicherter oberflächenzone
DE2433737C3 (de) Hartmetallkörper, Verfahren zu seiner Herstellung und seine Verwendung
DE10361321B4 (de) Wegwerfspitze und Verfahren zu deren Herstellung
DE69028598T2 (de) Schneideinsatz aus gesintertem Hartmetall
DE112021005360T5 (de) Pulverisier-/rühr-/misch-/knetmaschinenkomponente
DE4406961C2 (de) Verschleißbeständiger Schneideinsatz, hergestellt aus einem Cermet auf Titancarbonitrid-Basis
DE60133833T2 (de) Bearbeitungswerkzeug und verfahren zur herstellung desselben
DE19845376B4 (de) Hartmetall- oder Cermet-Körper
DE102008048967A1 (de) Hartmetallkörper und Verfahren zu dessen Herstellung
DE2110520C3 (de) Verfahren zum Beschichten eines zementierten Carbidgegenstandes
DE102013206497A1 (de) Schneidkörper und Verfahren zum Herstellen eines solchen
DE69724652T2 (de) Bohrer- oder fräser-rohling
DE4423451A1 (de) Cermet und Verfahren zu seiner Herstellung
DE102008052559A1 (de) Metallpulver

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CERATIZIT AUSTRIA GESELLSCHAFT M.B.H.

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

RIC1 Information provided on ipc code assigned before grant

Ipc: 7C 22C 29/02 B

Ipc: 7C 22C 1/05 B

Ipc: 7B 22F 7/02 A

17P Request for examination filed

Effective date: 20051121

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070301

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20080305

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50309292

Country of ref document: DE

Date of ref document: 20080417

Kind code of ref document: P

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080616

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: CERATIZIT AUSTRIA -G. M.B.H.

Effective date: 20080430

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

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080805

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

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

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

Ref country code: MC

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

Effective date: 20080430

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: SANDVIK INTELLECTUAL PROPERTY AB

Effective date: 20081205

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

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

Ref country code: BE

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

Effective date: 20080430

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080605

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

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

Ref country code: AT

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

Effective date: 20080414

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

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

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 20090706

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

Ref country code: LU

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

Effective date: 20080414

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080906

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080305

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080606

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

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

Ref country code: SE

Payment date: 20220421

Year of fee payment: 20

Ref country code: IT

Payment date: 20220420

Year of fee payment: 20

Ref country code: GB

Payment date: 20220420

Year of fee payment: 20

Ref country code: FR

Payment date: 20220420

Year of fee payment: 20

Ref country code: DE

Payment date: 20220420

Year of fee payment: 20

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

Ref country code: CH

Payment date: 20220421

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50309292

Country of ref document: DE

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20230413

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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 EXPIRATION OF PROTECTION

Effective date: 20230413