EP0200088B1 - Corps en métal dur enrobé résistant à l'usure et procédé pour sa fabrication - Google Patents

Corps en métal dur enrobé résistant à l'usure et procédé pour sa fabrication Download PDF

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Publication number
EP0200088B1
EP0200088B1 EP86105195A EP86105195A EP0200088B1 EP 0200088 B1 EP0200088 B1 EP 0200088B1 EP 86105195 A EP86105195 A EP 86105195A EP 86105195 A EP86105195 A EP 86105195A EP 0200088 B1 EP0200088 B1 EP 0200088B1
Authority
EP
European Patent Office
Prior art keywords
intermediate layer
hard
metal
hard metal
layer
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
Application number
EP86105195A
Other languages
German (de)
English (en)
Other versions
EP0200088A1 (fr
Inventor
Udo Dr. König
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.)
Widia GmbH
Original Assignee
Fried Krupp AG
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=6269734&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0200088(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Publication of EP0200088A1 publication Critical patent/EP0200088A1/fr
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Publication of EP0200088B1 publication Critical patent/EP0200088B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12576—Boride, carbide or nitride component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component

Definitions

  • the invention relates to a wear-resistant coated hard metal body, which consists of a hard metal base body, a metallic intermediate layer and at least one metal-free hard material layer.
  • the invention further relates to a method for producing this hard metal body.
  • DE-OS 2 528 255 discloses utility articles and decorative articles provided with a coating, the coating of which is 0.1 to 50 ⁇ m thick and consists of hard materials, the hard materials being the carbides and / or nitrides and / or borides and / or Silicides and / or oxides of the elements of 111th to Vl. Periodic table group are used.
  • DE-OS 2 528 255 it is also proposed to use one or more intermediate layers of metals or of alloys of metals and hard materials or of hard materials to improve the adhesive strength of the hard materials or to reduce thermal stresses.
  • both metallic and non-metallic substances come into question, such as. B. steels, cast materials, non-ferrous metals, light metals, hard metals, glass and ceramics.
  • the composite material known from CH-PS 542 678 is produced in that the intermediate layer material is deposited on the substrate by chemical reaction from the gas phase, the substrate material and intermediate layer material diffusing into one another, and in that the cover layer is chemically reacted from the gas phase on the intermediate layer deposits, with the cover layer material and the intermediate layer material diffusing into one another.
  • a wear-resistant coated hard metal body which is suitable as a tool for cutting and non-cutting shaping, is known with a metallic intermediate layer.
  • substrate material and interlayer material diffuse into one another.
  • the high temperatures of 900 to 1200 ° C. for the diffusion process are disadvantageous.
  • the invention is therefore based on the object of providing a wear-resistant coated hard metal body which consists of a hard metal base body, a metallic intermediate layer and at least one metal-free hard material layer which has wear properties and which allow its use as a tool for cutting and non-cutting shaping of metallic workpieces Intermediate layer is applied at much lower temperatures.
  • the metallic intermediate layer consists of molybdenum and / or tungsten, has a thickness of 0.1 to 2 J.Lm and is applied to the hard metal base body by a PVD process, which is applied during the application of the Intermediate layer has a temperature of 200 to 600 ° C.
  • a body designed in this way has wear properties which enable its use as a tool for the non-cutting and cutting shaping of metallic workpieces.
  • the metallic intermediate layer made of molybdenum and / or tungsten is applied to the hard metal base body by direct sputtering, since in this PVD process a particularly uniform sputtering of the molybdenum and / or tungsten onto the hard metal base body is achieved.
  • the properties of the intermediate layer according to the invention can advantageously be varied by replacing 0.1 to 49% by weight of the molybdenum and / or the tungsten with titanium, zirconium, hafnium, niobium and / or tantalum.
  • the object underlying the invention is further achieved by a method for producing the wear-resistant coated hard metal body, in which the metallic intermediate layer is applied to the hard metal base body by a PVD process, which is heated to a temperature of 200 to 600 ° C. during the application of the intermediate layer becomes.
  • a method for producing the wear-resistant coated hard metal body in which the metallic intermediate layer is applied to the hard metal base body by a PVD process, which is heated to a temperature of 200 to 600 ° C. during the application of the intermediate layer becomes.
  • the metallic intermediate layer is applied to the hard metal base body by direct cathode sputtering, since a particularly uniform sputtering of the intermediate layer is achieved with this PVD process.
  • at least one metal-free hard material layer is applied to the metallic intermediate layer by reactive sputtering or that at least one metal-free hard material layer is applied to the metallic intermediate layer by gas phase reaction.
  • the application of hard material layers by reactive sputtering or by gas phase reaction is known per se.
  • hard metal base bodies were used, which were designed as indexable inserts with the geometric shape SNUN 120408 and made of hard metal M15 (composition in% by weight: 82.5 WC, 11 (Ti, Ta, Nb) C, 6.5 Co ) passed.
  • the indexable insert was first treated in a CVD system at 1020 ° C. with a gas mixture of titanium tetrachloride, methane and hydrogen. After 60 minutes the temperature was lowered to 990 ° C and methane was replaced by nitrogen. After a total of 180 minutes, the oven heating was turned off and the insert was cooled in flowing hydrogen. A metallographic cut showed that a hard material double layer of titanium carbide and titanium nitride with a total thickness of 7.5 J.Lm had formed on the carbide insert.
  • a layer of titanium nitride was formed at a temperature of 350 ° C. on the indexable insert by reactive sputtering of a titanium target (cathode) in a gas atmosphere composed of 10% by volume nitrogen and 90% by volume argon and a pressure of 1 Pascal a thickness of 7.2 J.Lm deposited.
  • a 0.6 ⁇ m thick intermediate layer made of nickel was produced on an indexable insert by direct sputtering of a nickel target in an argon atmosphere, the indexable insert having a temperature of approximately 400.degree.
  • a titanium nitride layer was then applied to the intermediate nickel layer in the manner described in Example 2.
  • An intermediate molybdenum layer with a thickness of 0.6 ⁇ m was deposited on the indexable insert by sputtering a molybdenum target in an argon atmosphere.
  • the indexable insert had a temperature of approximately 400 ° C. during the deposition of the molybdenum intermediate layer.
  • a titanium nitride hard material layer was then applied to the molybdenum intermediate layer in the manner described in Example 2.
  • the indexable inserts were examined by metallographic methods, the layer thicknesses being measured and the bond between the base bodies and the layers being qualitatively assessed. With the help of the scratch test, in which a diamond cone tip is drawn over the layer with increasing contact load, a quantitative measure of the adhesive strength, the so-called critical load, could be determined. Finally, the edge retention of the coated indexable inserts was determined on a test lathe by machining a C60 steel shaft. The results of the tests are given in Table 1. The indexable insert coated according to Example 1 after the CVD process reached a critical load of 4.5 kg in the scratch test. In the machining test, a crater depth of 25 ⁇ m and a wear mark width of 0.15 mm were found after a turning time of 12 minutes.
  • the indexable insert coated according to Example 2 showed a critical load of only 2.5 kg.
  • the lower layer adhesive strength had an impact due to a higher crater wear and a larger wear mark width.
  • layer flaking was observed in the indexable insert coated according to Example 2.
  • the indexable insert according to Example 3 already showed so much scour wear after a turning time of 2 minutes that the machining test was terminated.
  • the indexable insert according to the invention according to Example 4 had a high critical load and thus also a high adhesive strength of the hard material layer. With regard to the wear characteristics, this indexable insert was superior to the comparison insert according to example 1.
  • An indexable insert was coated by direct sputtering with a molybdenum intermediate layer and then by reactive sputtering with a 2 ⁇ m thick aluminum oxide layer.
  • the temperature of the hard metal base body was approximately 400 ° C. during the two coating processes.
  • the critical load of the indexable insert coated in this way was determined to be 6 kg. In the absence of the molybdenum intermediate layer, the critical load was 1.5 kg.
  • an indexable insert was provided with an intermediate layer made of a molydane alloy which consisted of 0.07% zirconium, 0.5% titanium and the rest molybdenum. This intermediate layer also gave the subsequently applied titanium nitride hard material layer good adhesive strength and good wear properties.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Powder Metallurgy (AREA)
  • Chemical Vapour Deposition (AREA)

Claims (8)

1. Corps de métal dur plaqué résistant à l'usure qui comporte un corps de base en métal dur, une couche métallique intermédiaire, et au moins une couche de matériau dur non métallique, caractérisé en ce que la couche intermédiaire est constituée par du modybdène et/ou du tungstène, elle présente une épaisseur de 0,1 à 2 J.Lm et elle est déposée, au moyen d'un procédé PVD, sur le corps de base en métal dur qui, pendant le dépôt de la couche intermédiaire, présente une température de 200 à 600° C.
2. Corps de métal dur suivant la revendication 1, caractérisé en ce que la couche intermédiaire métallique de molybdène et/ou de tungstène est déposée sur le corps de base en métal dur par pulvérisation cathodique.
3. Corps de métal dur suivant les revendications 1 et 2, caractérisé en ce que l'on remplace 0,1 à 49 % en poids du molybdène et/ou du tungstène par du titane, du zirconium, du hafnium, du niobium et/ou du tantale.
4. Corps de métal dur suivant les revendications 1 à 3, caractérisé en ce que les couches de matériau dur non métalliques sont constituées de carbure de titane, de nitrure de titane, de carbonitrure de titane ou d'oxyde d'aluminium.
5. Procédé pour la fabrication du corps de métal dur plaqué résistant à l'usure suivant les revendications 1 à 4, caractérisé en ce que la couche intermédiaire métallique est déposée, au moyen d'un procédé PVD, sur le corps de base en métal dur qui, pendant le dépôt de la couche intermédiaire, est chauffé à une température de 200 à 600° C.
6. Procédé suivant la revendication 5, caractérisé en ce que la couche intermédiaire métallique est déposée sur le corps de base en métal dur par pulvérisation cathodique directe.
7. Procédé suivant les revendications 5 et 6, caractérisé en ce que, sur la couche intermédiaire métallique, est déposée au moins une couche de matériau dur non métallique par pulvérisation cathodique réactive.
8. Procédé suivant les revendications 5 et 6, caractérisé en ce que, sur la couche intermédiaire métallique, est déposée au moins une couche de matériau dur non métallique par réaction en phase gazeuse.
EP86105195A 1985-05-03 1986-04-15 Corps en métal dur enrobé résistant à l'usure et procédé pour sa fabrication Expired EP0200088B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853515919 DE3515919A1 (de) 1985-05-03 1985-05-03 Verschleissfester beschichteter hartmetallkoerper und verfahren zu seiner herstellung
DE3515919 1985-05-03

Publications (2)

Publication Number Publication Date
EP0200088A1 EP0200088A1 (fr) 1986-11-05
EP0200088B1 true EP0200088B1 (fr) 1989-01-25

Family

ID=6269734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105195A Expired EP0200088B1 (fr) 1985-05-03 1986-04-15 Corps en métal dur enrobé résistant à l'usure et procédé pour sa fabrication

Country Status (5)

Country Link
US (1) US4728579A (fr)
EP (1) EP0200088B1 (fr)
JP (1) JPS61264171A (fr)
DE (1) DE3515919A1 (fr)
IN (2) IN165323B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781989A (en) * 1986-03-07 1988-11-01 Mitsubishi Kinzoku Kabushiki Kaisha Surface-coated cutting member
US4804583A (en) * 1987-05-26 1989-02-14 Exxon Research And Engineering Company Composition of matter that is hard and tough
US5069092A (en) * 1987-12-16 1991-12-03 Ford Motor Company Cutting tool for aluminum workpieces having enhanced crater wear resistance
US5157997A (en) * 1987-12-16 1992-10-27 Ford Motor Company Cutting tool for aluminum workpieces having enhanced crater wear resistance
EP0349925A1 (fr) * 1988-07-04 1990-01-10 INTERATOM Gesellschaft mit beschränkter Haftung Procédé pour revêtir des substrats en métaux réfractaires
GB8827541D0 (en) * 1988-11-25 1988-12-29 Atomic Energy Authority Uk Multilayer coatings
EP0404973A1 (fr) * 1989-06-27 1991-01-02 Hauzer Holding B.V. Procédé et appareillage pour le revêtement de substrats
DE4037480A1 (de) * 1990-11-24 1992-05-27 Krupp Widia Gmbh Verfahren zur herstellung eines beschichteten hartmetallschneidkoerpers
JPH0649645A (ja) * 1992-07-31 1994-02-22 Yoshida Kogyo Kk <Ykk> 硬質多層膜形成体およびその製造方法
CA2150739A1 (fr) * 1994-06-14 1995-12-15 Deepak G. Bhat Methode de deposition d'un revetement composite de diamant sur un substrat dur
DE4434428A1 (de) * 1994-09-27 1996-03-28 Widia Gmbh Verbundkörper, Verwendung dieses Verbundkörpers und Verfahren zu seiner Herstellung
DE19601234A1 (de) 1996-01-15 1997-07-17 Widia Gmbh Verbundkörper und Verfahren zu seiner Herstellung
US6228484B1 (en) * 1999-05-26 2001-05-08 Widia Gmbh Composite body, especially for a cutting tool
JP4225081B2 (ja) * 2002-04-09 2009-02-18 株式会社村田製作所 電子部品の製造方法、電子部品及び弾性表面波フィルタ
US20050129565A1 (en) * 2003-12-15 2005-06-16 Ohriner Evan K. Tungsten alloy high temperature tool materials
DE102006008762A1 (de) * 2006-02-24 2007-09-13 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit verbesserter Welle
US7732014B2 (en) * 2006-04-18 2010-06-08 Philos Jongho Ko Process for diffusing titanium and nitride into a material having a generally compact, granular microstructure
JP4704970B2 (ja) * 2006-07-19 2011-06-22 株式会社神戸製鋼所 除膜性に優れた硬質皮膜

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DE342324C (fr) *
DE336905C (de) * 1919-10-22 1921-05-19 Walter Breakenridge Templeton Hebebock
DE1060517B (de) * 1957-11-22 1959-07-02 Siemens Planiawerke Ag Elektrisch hochbelastbare Kohle- oder Graphitelektrode
CH542678A (de) * 1969-06-02 1973-10-15 Suisse De Rech S Horlogeres La Verbundwerkstoff für Schneidwerkzeuge
US3640689A (en) * 1970-03-04 1972-02-08 Fansteel Inc Composite hard metal product
FR2183603B1 (fr) * 1972-05-12 1974-08-30 Cit Alcatel
SE412417B (sv) * 1973-01-18 1980-03-03 Massachusetts Inst Technology Skaerverktyg av volframkarbid och foerfarande foer dess tillverkning
AT350285B (de) * 1974-08-07 1979-05-25 Plansee Metallwerk Mit einem ueberzug versehene, metallische gebrauchsgegenstaende
AT336905B (de) * 1975-02-10 1977-06-10 Plansee Metallwerk Verschleissteil fur die spanabhebende und spanlose formgebung
AT342324B (de) * 1975-02-28 1978-03-28 Plansee Metallwerk Gebrauchs- und schmuckartikel
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DE3503105A1 (de) * 1985-01-30 1986-07-31 Leybold-Heraeus GmbH, 5000 Köln Verfahren zum beschichten von maschinenteilen und werkzeugen mit hartstoffmaterial und durch das verfahren hergestellte maschinenteile und werkzeuge

Also Published As

Publication number Publication date
DE3515919C2 (fr) 1993-08-19
JPH0580548B2 (fr) 1993-11-09
IN165910B (fr) 1990-02-10
DE3515919A1 (de) 1986-11-06
JPS61264171A (ja) 1986-11-22
US4728579A (en) 1988-03-01
IN165323B (fr) 1989-09-23
EP0200088A1 (fr) 1986-11-05

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