GB2048960A - Coating Articles With Layers of Hard Materials - Google Patents

Coating Articles With Layers of Hard Materials Download PDF

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Publication number
GB2048960A
GB2048960A GB8013737A GB8013737A GB2048960A GB 2048960 A GB2048960 A GB 2048960A GB 8013737 A GB8013737 A GB 8013737A GB 8013737 A GB8013737 A GB 8013737A GB 2048960 A GB2048960 A GB 2048960A
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United Kingdom
Prior art keywords
hard material
layers
composite body
individual layers
thickness
Prior art date
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Granted
Application number
GB8013737A
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GB2048960B (en
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Fried Krupp AG
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Fried Krupp AG
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Publication of GB2048960B publication Critical patent/GB2048960B/en
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
    • C23C28/04—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 only coatings of inorganic non-metallic material
    • C23C28/044—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 only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/32—Carbides
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/34—Nitrides
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/36—Carbonitrides
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40—Oxides
    • C23C16/403—Oxides of aluminium, magnesium or beryllium
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40—Oxides
    • C23C16/405—Oxides of refractory metals or yttrium
    • 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
    • C23C28/40—Coatings including alternating layers following a pattern, a periodic or defined repetition
    • C23C28/42—Coatings including alternating layers following a pattern, a periodic or defined repetition characterized by the composition of the alternating layers
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates

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  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Vapour Deposition (AREA)
  • Laminated Bodies (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Powder Metallurgy (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

A composite body, for use as a part resistant to wear or as an insert in a cutting tool, comprises a substrate carrying one or more surface layers of hard material devoid of binder. The thickness of each such surface layer is 1 to 50 mu m and one of the layers is composed of a multiplicity of individual layers each having a thickness of 0.02 to 0.1 mu m. Alternate individual layers consist of hard material of different composition.

Description

SPECIFICATION Composite Body The invention relates to a composite body which consists of a substrate and one or more surface layers of hard material of different composition and devoid of binder metal. The substrate may consist, for example, of steel, of ceramic material or of hard metal consisting of at least one appropriate metal carbide as the hard material and at least one of the binder metals cobalt, iron or nickel. All layers of hard material constitute the hard coating of the substrate and each layer of hard material consists of one or more hard materials. The hard materials are carbides, nitrides, borides, silicides or oxides which have a high resistance to wear and high chemical stability. The known layers of hard material normally have a thickness of 1 to 50 ym.
In published Austrian Patent Application A 6317/72 is described a composite body of hard metal intended for use as a wear resistant element which has, at least on the portions subjected to wear, a coating of hard materials which consists of several layers of different composition and consisting of compounds of elements of Groups Ill to VI of the Periodic System with carbon and/or nitrogen and/or boron and/or silicon, the individual layers having a thickness of 0.2 to 30 Xum and merging into one another over a thickness of 0.1 to 10 ssm. In addition, DE-AS 2,253,745 describes a composite body, which consists of a core and two superposed layers of hard material devoid of binder metal, the outer layer consisting of one or more extremely wear resistant deposits of aluminium oxide and/or zirconium oxide and having a thickness of 0.2 to 20 tjm while the inner layer adjoining the core consists of one or more carbides and/or nitrides of the elements titanium, zirconium, hafnium, vanadium, niobium, tantalum chromium, molybdenum, tungsten, silicon and/or boron and has a thickness of 1 to 10 ,um.Also DEOS 2,525,185 describes wear-resistant parts consisting of a hard metal substrate and two superposed layers, the outer and extremely wear-resistant layer consisting of aluminium oxide and/or zirconium oxide and the inner layer consisting of one or more borides, in particular diborides-of of the elements titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten, the inner layer and the outer layer each having a thickness of 0.5 Mm to 20 Mm. Finally, GB-PS 1,509,752 describes steel or hard metal tools coated with several layers of hard materials of different composition, the thickness of the coating being 1 to 50 ,um and the thickness of the individual layers being 0.5 to 20 ym. The known composite bodies have the disadvantage that the coatings of hard material have inadequate adhesive strength when subjected to wear. In particular the oxide layers have a tendency to crack, and the cracks lead to a separation of the coatings.
The object of the invention is to provide a composite body in which the layers of hard material devoid of binder metal have besides a high wear resistance an improved adhesion to the substrate and to the adjoining layers, because the high wear resistance of the layers of hard material can only be fully utilized when they are bound sufficiently firmly to the substrate and to one another. In addition, the hard material coating should have a high fracture toughness and thus be able to resist higher stresses requiring toughness.
The problem underlying the invention is solved in that one of the layers of hard material in the composite body has a thickness of 1 to 50 Mm and is composed of a multiplicity of thin individual layers each having a thickness of 0.02 to 0.1 Mm, the hard material in each of these individual layers differing in composition from that in both of the adjoining individual layers. Surprisingly, it has been found that a composite body according to the invention has both a high wear resistance and a substantially greater adhesive strength of the entire coating of hard material, notwithstanding the fact that the coating can be made both of relatively thick layers and of a multiplicity of thin individual layers.
In particular, it was not to be expected that when the composite body is subjected to wear, energyconsuming phenomena would occur in the layer consisting of a multiplicity of thin individual layers, which strongly inhibit formation of cracks and premature separation of the coating of hard material.
The composite body according to the invention has, in addition, a high fracture toughness and, consequently, can resist higher stresses requiring toughness.
It has been found that the composite body according to the invention can take the following forms: (a) Substrate-layer of hard material composed of many thin individual layers.
(b) Substrate-one or more layers of hard material-layer of hard material composed of many thin individual layers.
(c) Substrate-one or more layers of hard material-layer of hard material composed of many thin individual layers-one or more layers of hard material.
(d) Substrate-layer of hard material composed of many thin individual layers-one or more layers of hard material.
The layers of hard material have a thickness of 1 to 50 Mm.
As a further feature of the invention it is proposed that the layer of hard material composed of a multiplicity of individual layers has a thickness of 3 to 1 5 4m, as this thickness provides optimum properties for the composite body. The composite body according to the invention has been found to be particularly advantageous when the many thin individual layers consist alternatively of titanium carbide, nitride or carbonitride and of aluminium oxide or zirconium oxide, or, as another possibility, alternately of titanium carbide and zirconium carbonitride. It is also specially advantageous for the substrate of the composite body to be metallic, a substrate of steel or hard metal being especially suitable.According to a further feature of the invention a substrate of hard metal may carry a hard material layer of titanium carbide on which is a hard material layer consisting of a multiplicity of thin individual layers which are alternatively of titanium nitride and of aluminium oxide. Alternatively the hard metal substrate may carry a hard material layer, consisting of a multiplicity of thin individual layers consisting alternatively of titanium carbide, nitride or carbonitride and of aluminium or zirconium oxide, on which is a hard material layer of aluminium oxide. The outer layer of aluminium oxide may have a nitrogen content of 0.5 to 4 atom %. Owing to its high wear resistance, the composite body according to the invention may be used for elements subjected to wear or for machining metallic and nonmetallic materials.
Various known coating procedures, in particular the CVD procedure, can be used to produce the composite body. The multiple thin individual layers can be identified by electron microscopy.
The invention will now be explained in more detail, bymference to an example. A substrate of hard metal, in the form of an indexable insert, was provided in a furnace at a temperature of 1000 C, at a pressure of 50 mbar and over a period of 100 minutes with a hard coating of titanium carbide having a thickness of 3,arm, the titanium carbide being produced by a vapour phase reaction from titanium tetrachloride, methane and hydrogen.Then, in the same furnace at a temperature of 1000 C, at a pressure of 50 mbar and over a period of 250 minutes there was deposited on the layer of titanium carbide a coating of hard material which had a thickness of 3,um and consisted in alternation of 1 9 layers of titanium nitride and 1 9 layers of aluminium oxide.
The 38 individual layers were formed by vapour phase reactions, the individual layers of titanium nitride being formed using a gas composed, in proportions by volume, of 22.2% nitrogen, 1.2% titanium tetrachloride and 76.6% hydrogen and the layers of aluminium oxide being formed using a gas composed, in proportions by volume, of 4.0% carbon dioxide, 1 6.6% carbon monoxide, 2.3% aluminium chloride and 77.1% hydrogen. The resulting composite body was used as an indexable insert for machining metallic materials and found to have in comparison with known coated inserts a substantially higher wear resistance and higher toughness as shown by the following experimental results.
1. Smooth cutting: Material machined: Steel C 60 Form of the indexable insert in accordance with ISO 1832: SNUN 120408 Cutting speed: v=200 m/min Depth of cuttingxfeed: axs=1.5x0.28 mm2/rev Machining time: T=10 min.
Crater depth Flank wear KTym VB mm Tool insert of hard metal carrying a layer of TiC of thickness 6,um 46 0.20 Tool insert of hard metal carrying an inner layer of TiC of thickness 5,um and an outer layer of Awl203 of thickness 1 ym 30 0.18 Tool insert according to the invention of hard metal carrying an inner layer of TiC of thickness 3,um and an outer layer of thickness 3,um and consisting of 1 9 layers of TiN and 1 9 layers of Al203 10 0.1 3 2. Interrupted cutting: Four rods of C 45 KN steel, having a diameter of 40 mm and a length of 60 mm, were clamped parallel to one another in holes disposed in a circle of diameter 190 mm in a supporting device and were surfaced in an outward direction.
Cutting speed: 250 m/min Depth of cut: a=2 mm Feed: s=0.22 mm/rev.
Number of cuts Tool insert of hard metal carrying a layer of TiC of thickness 6 Mm 19200 Tool insert of hard metal carrying an inner layer of TiC of thickness 5 jum and an outer layer of Awl203 of thickness 1 Mm 17920 Tool insert according to the invention of hard metal carrying an inner layer of TiC of thickness 3 um and an outer layer of thickness 3 ,um and consisting of 19 layers of TiN and 19 layers of Awl203 32000

Claims (9)

Claims
1. A composite body which consists of a substrate and one or more layers of hard material of different composition and devoid of binder material and each layer having a thickness of 1 to 50 4m, characterized in that one of the layers of hard material is composed of a multiplicity of thin individual layers each having a thickness of 0.02 to 0.1 ,um, the hard material in each of these individual layers differing in composition from that in both of the adjoining individual layers.
2. A composite body according to claim 1, characterized in that the layer of hard material composed of a multiplicity of individual layers has a thickness of 3 to 15,am.
3. A composite body according to claims 1 and 2, characterized in that the individual layers consist altetnately of titanium carbide, nitride or carbonitride and of aluminium oxide or zirconium oxide.
4. A composite body according to claims 1 and 2, characterized in that the individual layers consist alternately of titanium carbide and of zirconium carbonitride.
5. A composite body according to claims 1 to 4, characterized in that it has a metallic substrate.
6. A composite body according to claims 1, 2, 3 and 5, characterized in that the substrate is of hard metal carrying a hard material layer of titanium carbide on which is a hard material layer consisting of a multiplicity of thin individual layers which are alternately of titanium nitride and of aluminium oxide.
7. A composite body according to claims 1, 2, 3 and 5, characterized in that the substrate is of hard metal carrying a hard material layer, consisting of a multiplicity of thin individual layers consisting alternately of titanium carbide, nitride or carbonitride and of aluminium or zirconium oxide, on which is a hard material layer of aluminium oxide.
8. A composite body according to claim 7, characterized in that the outermost hard material layer consists of aluminium oxide having a nitrogen content of 0.5 to 4 atom %.
9. The use of the composite body according to claims 1 to 8 as an element to be subjected to wear and for machining metallic and non-metallic materials.
GB8013737A 1979-04-28 1980-04-25 Coating articles with layers of hard materials Expired GB2048960B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792917348 DE2917348C2 (en) 1979-04-28 1979-04-28 Wear-resistant composite body

Publications (2)

Publication Number Publication Date
GB2048960A true GB2048960A (en) 1980-12-17
GB2048960B GB2048960B (en) 1983-05-18

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GB8013737A Expired GB2048960B (en) 1979-04-28 1980-04-25 Coating articles with layers of hard materials

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JP (1) JPS55145165A (en)
AT (1) AT380492B (en)
DE (1) DE2917348C2 (en)
FR (1) FR2454903A1 (en)
GB (1) GB2048960B (en)
SE (1) SE454890B (en)

Cited By (26)

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JPS586969A (en) * 1981-07-06 1983-01-14 Mitsubishi Metal Corp Surface clad sintered hard alloy member for cutting tool
FR2519071A1 (en) * 1981-12-24 1983-07-01 Mtu Muenchen Gmbh DAWN OF A GAS FLOW MACHINE, IN PARTICULAR A GAS TURBINE
EP0095131A1 (en) * 1982-05-20 1983-11-30 Gte Valenite Corporation Coated silicon nitride cutting tools
EP0095128A1 (en) * 1982-05-20 1983-11-30 GTE Laboratories Incorporated Coated composite silicon nitride cutting tools
DE3423911A1 (en) * 1983-06-30 1985-01-10 Mitsubishi Kinzoku K.K., Tokio/Tokyo SURFACE-COVERED CERAMIC MATERIALS BASED ON SIALON FOR TOOLS
US4525415A (en) * 1981-09-11 1985-06-25 Iscar Limited Sintered hard metal products having a multi-layer wear-resistant coating
EP0162656A2 (en) * 1984-05-14 1985-11-27 Sumitomo Electric Industries Limited Multilayer coated cemented carbides
GB2166162A (en) * 1984-10-26 1986-04-30 Parker Pen Co Multilayer coatings
US4599281A (en) * 1981-12-24 1986-07-08 Schwartzkopf Development Corporation Wearing part
GB2182060A (en) * 1985-10-25 1987-05-07 Vni Instrument Inst Cutting tool with high hardness coating
EP0275975A2 (en) * 1987-01-20 1988-07-27 Valenite Inc. Ultrathin laminated oxide coatings
WO1990011156A1 (en) * 1989-03-17 1990-10-04 Kennametal Inc. Multilayer coated cemented carbide cutting insert
US4984940A (en) * 1989-03-17 1991-01-15 Kennametal Inc. Multilayer coated cemented carbide cutting insert
US5674564A (en) * 1991-06-25 1997-10-07 Sandvik Ab Alumina-coated sintered body
EP0885984A2 (en) * 1997-06-19 1998-12-23 Sumitomo Electric Industries, Ltd. Coated hard tool having multi-layer coating
WO1999029921A1 (en) * 1997-12-10 1999-06-17 Sandvik Ab (Publ) Multilayered pvd coated cutting tool
WO1999029920A1 (en) * 1997-12-10 1999-06-17 Sandvik Ab (Publ) Multilayered pvd coated cutting tool
EP1616976A2 (en) * 2004-07-13 2006-01-18 Sandvik Intellectual Property AB Coated insert
US7033682B1 (en) * 2001-12-28 2006-04-25 Ues, Inc. Coating solutions for titanium and titanium alloy machining
EP1705263A1 (en) 2005-03-23 2006-09-27 Sandvik Intellectual Property AB Coated cutting tool insert
US7153562B2 (en) 2003-01-24 2006-12-26 Sandvik Intellectual Property Ab Coated cemented carbide insert
US7396371B2 (en) 2004-06-24 2008-07-08 Sandvik Intellectual Property Ab Coated insert
US7416778B2 (en) * 2004-10-04 2008-08-26 Sandvik Intellectual Property Ab Method for high speed machining and coated cutting tool
US7964295B2 (en) 2004-12-22 2011-06-21 Sandvik Intellectual Property Ab Coated cutting inserts
CN104540624A (en) * 2012-08-10 2015-04-22 株式会社图格莱 Coated tool
US20160305018A1 (en) * 2015-04-20 2016-10-20 Kennametal Inc. Cvd coated cutting insert and method of making the same

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IL58548A (en) * 1979-10-24 1983-07-31 Iscar Ltd Sintered hard metal products having a multi-layer wearresistant coating
JPS5779169A (en) * 1980-11-06 1982-05-18 Sumitomo Electric Ind Ltd Physical vapor deposition method
BR8108985A (en) * 1981-02-23 1983-03-01 Vni Instrument Inst MULTILAYER COATING OF METAL CUTTING TOOLS
CH647556A5 (en) * 1981-07-02 1985-01-31 Stellram Sa WEAR PART IN REFRACTORY MATERIAL.
US4619865A (en) * 1984-07-02 1986-10-28 Energy Conversion Devices, Inc. Multilayer coating and method
DE3512986A1 (en) * 1985-04-11 1986-10-16 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe VIELLAGE, HIGH-WEAR-RESISTANT HARD MATERIAL PROTECTIVE LAYER FOR METALLIC, STRICTLY STRESSED SURFACES OR SUBSTRATES
JP2529190B2 (en) * 1985-08-28 1996-08-28 住友電気工業株式会社 Coated cemented carbide
AT387186B (en) * 1987-05-04 1988-12-12 Ver Edelstahlwerke Ag COATED CARBIDE BODY
DE4239234A1 (en) * 1992-11-21 1994-06-09 Krupp Widia Gmbh Tool and method for coating a tool body
DE59607891D1 (en) * 1995-08-19 2001-11-15 Widia Gmbh COMPOSITE BODY AND METHOD FOR THE PRODUCTION THEREOF
DE19530518A1 (en) * 1995-08-19 1997-02-20 Widia Gmbh Metal carbonitride hard coating
DE19530517A1 (en) * 1995-08-19 1997-02-20 Widia Gmbh Metal carbonitride hard coating

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US4525415A (en) * 1981-09-11 1985-06-25 Iscar Limited Sintered hard metal products having a multi-layer wear-resistant coating
US4599281A (en) * 1981-12-24 1986-07-08 Schwartzkopf Development Corporation Wearing part
FR2519071A1 (en) * 1981-12-24 1983-07-01 Mtu Muenchen Gmbh DAWN OF A GAS FLOW MACHINE, IN PARTICULAR A GAS TURBINE
EP0095131A1 (en) * 1982-05-20 1983-11-30 Gte Valenite Corporation Coated silicon nitride cutting tools
EP0095128A1 (en) * 1982-05-20 1983-11-30 GTE Laboratories Incorporated Coated composite silicon nitride cutting tools
DE3423911A1 (en) * 1983-06-30 1985-01-10 Mitsubishi Kinzoku K.K., Tokio/Tokyo SURFACE-COVERED CERAMIC MATERIALS BASED ON SIALON FOR TOOLS
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EP0162656A2 (en) * 1984-05-14 1985-11-27 Sumitomo Electric Industries Limited Multilayer coated cemented carbides
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GB2166162A (en) * 1984-10-26 1986-04-30 Parker Pen Co Multilayer coatings
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US6333099B1 (en) 1997-12-10 2001-12-25 Sandvik Ab Multilayered PVD coated cutting tool
US7033682B1 (en) * 2001-12-28 2006-04-25 Ues, Inc. Coating solutions for titanium and titanium alloy machining
US7153562B2 (en) 2003-01-24 2006-12-26 Sandvik Intellectual Property Ab Coated cemented carbide insert
US7727592B2 (en) 2004-06-24 2010-06-01 Sandvik Intellectual Property Ab Coated insert
US7396371B2 (en) 2004-06-24 2008-07-08 Sandvik Intellectual Property Ab Coated insert
EP1616976A3 (en) * 2004-07-13 2006-06-21 Sandvik Intellectual Property AB Coated insert
US7470296B2 (en) 2004-07-13 2008-12-30 Sandvik Intellectual Property Ab Coated insert and method of making same
EP1616976A2 (en) * 2004-07-13 2006-01-18 Sandvik Intellectual Property AB Coated insert
US7416778B2 (en) * 2004-10-04 2008-08-26 Sandvik Intellectual Property Ab Method for high speed machining and coated cutting tool
US7964295B2 (en) 2004-12-22 2011-06-21 Sandvik Intellectual Property Ab Coated cutting inserts
EP1705263A1 (en) 2005-03-23 2006-09-27 Sandvik Intellectual Property AB Coated cutting tool insert
US7597951B2 (en) 2005-03-23 2009-10-06 Sandvik Intellectual Property Ab Coated cutting tool insert
CN104540624A (en) * 2012-08-10 2015-04-22 株式会社图格莱 Coated tool
CN104540624B (en) * 2012-08-10 2016-08-10 株式会社图格莱 coated tool
US20160305018A1 (en) * 2015-04-20 2016-10-20 Kennametal Inc. Cvd coated cutting insert and method of making the same
US10100405B2 (en) * 2015-04-20 2018-10-16 Kennametal Inc. CVD coated cutting insert and method of making the same

Also Published As

Publication number Publication date
AT380492B (en) 1986-05-26
DE2917348B1 (en) 1980-10-30
DE2917348C2 (en) 1984-07-12
ATA212280A (en) 1982-10-15
JPS55145165A (en) 1980-11-12
FR2454903A1 (en) 1980-11-21
SE8002819L (en) 1980-10-29
FR2454903B1 (en) 1984-04-20
SE454890B (en) 1988-06-06
GB2048960B (en) 1983-05-18

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