EP1990438B1 - Outil doté d'un revêtement - Google Patents

Outil doté d'un revêtement Download PDF

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Publication number
EP1990438B1
EP1990438B1 EP20080450060 EP08450060A EP1990438B1 EP 1990438 B1 EP1990438 B1 EP 1990438B1 EP 20080450060 EP20080450060 EP 20080450060 EP 08450060 A EP08450060 A EP 08450060A EP 1990438 B1 EP1990438 B1 EP 1990438B1
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Prior art keywords
tool
coating
object according
body portion
alloy
Prior art date
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EP20080450060
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German (de)
English (en)
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EP1990438A1 (fr
Inventor
Ziya Devrim Caliskanoglu
Christian Mitterer
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Voestalpine Boehler Edelstahl GmbH and Co KG
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Boehler Edelstahl GmbH and Co KG
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Priority to SI200830049T priority Critical patent/SI1990438T1/sl
Publication of EP1990438A1 publication Critical patent/EP1990438A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • 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
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12049—Nonmetal 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
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12104—Particles discontinuous
    • Y10T428/12111—Separated by nonmetal matrix or binder [e.g., welding electrode, etc.]
    • Y10T428/12125—Nonparticulate component has Fe-base
    • 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.]
    • Y10T428/12639—Adjacent, identical composition, components
    • Y10T428/12646—Group VIII or IB metal-base
    • Y10T428/12653—Fe, containing 0.01-1.7% carbon [i.e., steel]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to a tool or article which carries a coating applied by a PVD or CVD method.
  • the invention preferably relates to a tool for machining metals, in particular austenitic steels, nickel-base alloys and titanium, and titanium alloys.
  • Precipitation-hardenable iron-cobalt-molybdenum and / or tungsten alloys are known as tool materials and state of the art.
  • a production of larger tools from these so-called quick-cut alloys is associated with a number of problems because on the one hand given a high separation tendency in the solidification of the melt and on the other hand, a hot working of the material are possible only within narrow limits at high temperature.
  • the tool as a composite tool, with only small cutting parts made of an iron-cobalt-tungsten alloy, which are connected to a support member, usually made of an alloy steel, by welding.
  • An improvement in the performance characteristics of the cutting parts should be achieved by a powder metallurgical (PM) production.
  • the tool has long been known and customary to provide at least the working areas of the cutting tools with a surface hard layer.
  • the tool After the tool has been formed in its shape and given a thermal coating, it is applied by applying at least one layer of hard material, usually of carbide and / or nitride and of carbonitride and / or oxide, in particular of the elements Ti and / or Al and / or Cr, after PVD or CVD process at a temperature between 500 ° C and 680 ° C, at most below the tempering temperature of the tool steel alloy, in particular the high speed steel alloy.
  • hard material usually of carbide and / or nitride and of carbonitride and / or oxide, in particular of the elements Ti and / or Al and / or Cr
  • a carbide coating is also known for hard metals and is used extensively for such tools.
  • the technological advancement of coated high-speed steel tools improved their quality and performance characteristics such that similarly coated tools made of carbon-free, precipitation hardened (Fe-Co-Mo) cutting parts have approximately the same property profile or equal cutting strength during chip removal.
  • the invention which is based on the object to provide a tool or an object, which or which, in particular in a machining of metals, such as titanium, has a significantly improved performance.
  • a tool or article which consists of a substantially carbon-free, precipitation-hardened iron-cobalt-molybdenum / tungsten-nitrogen alloy and carries a coating which is applied by the PVD or CVD method and having a monophasic crystalline structure, said body part using a powder metallurgical (PM) process with atomization of liquid metal for block production from an alloy containing in% by weight: Cobalt (Co) 15.0 to 30.0 Molybdenum (Mo) to 20.0 Nitrogen (N) 0005 to 12:12 Silicon (Si) 0.1 to 0.8 Manganese (Mn) 0.1 to 0.6 Chrome (Cr) 12:02 to 0.2 Vanadium (1 /) 12:02 to 0.2 Tungsten (W) to 25.0 Molybdenum + 0.5 tungsten Mo + W / 2 10.0 to 22.0 Nickel (Ni) 12:01 to 0.5 Titanium (Ti) 0001 to 0.2 Niobium / tantalum
  • the advantages of the invention can be seen synergistically in an optimization of the alloying technology as well as the selected production method of the main body and in the coating formation.
  • a nitrogen content of the Fe-Co-Mo / WN alloy provided according to the invention not only a favorable precipitation behavior of the intermetallic phase with improved homogeneity is achieved, but also the seeding conditions or the adhesion conditions for a hard material layer are advantageously influenced.
  • a PM production improves the uniformity of a fine microstructure and has a favorable effect on the deformability of the material.
  • the applied to the tool under improved adhesion according to the invention single-phase crystalline structured coating has not only a high hardness and high toughness and a low surface roughness, which has in a chip of particularly tough metals, as has been shown, particular advantages in terms of reduced Tool heating and an improved chip removal brings.
  • the advantages of the article or the like according to the invention are, as it turned out, based on a synergy.
  • a powder metallurgical production of the main body which has a significantly higher thermal conductivity, a microstructure with a fine distribution of the phases of the material is achieved, in comparison with high-alloyed high-speed steels no noticeable material softening at high temperatures, eg at 600 ° C, occurs.
  • the alloying element nitrogen with a minimum concentration of 0.005 wt .-%, in particular of 0.01 wt .-% in the substrate, because this significantly increases the adhesion of the growing coating.
  • a monophasic crystalline layer with face-centered cubic structure proves to be superior, because on the one hand it has improved mechanical properties and, on the other hand, has a low surface roughness, which is advantageous in particular for cutting tools.
  • the abovementioned alloy within wide limits of the chemical composition is also particularly suitable for atomization of the liquid metal and subsequent solidification to largely homogeneous, small powder grains. This also results in improved deformation conditions of the hot isostatic pressed (HIP) block.
  • HIP hot isostatic pressed
  • thermoformed article but also the property profile of the main body of a tool and ultimately of the tool itself can be further improved if the body part using a powder metallurgical (PM) method with atomization of liquid metal for block production and of an alloy containing in% by weight: Cobalt (Co) 20.0 to 30.0 Molybdenum (Mo) 11.0 to 19.0 Tungsten (W) 12:01 to 0.9
  • PM powder metallurgical
  • Iron (Fe) and production-related impurities is made as a remainder .
  • An alloy optimization of the chemical composition according to the above values relates to the concentrations of the basic elements, the ratio of cobalt to molybdenum, a narrow limitation of the micro-alloying elements and a limitation of the impurities in the material.
  • the nitrogen content is ambivalent on the one hand with regard to the microstructure, on the other hand advantageous in terms of adhesion and a type of coating.
  • the elements of silicon and manganese are particularly suitable, which in particular reduce harmful grain boundary deposits.
  • the impurity elements aluminum and carbon are ambivalently effective, but should not exceed the specified maximum concentrations.
  • Phosphorus, sulfur and oxygen are to be regarded as pests which should have as low as possible levels in the alloy.
  • one or more alloying constituent (s) or accompanying element (s) has a concentration in% by weight: Co 24.0 to 27.0 Not a word 13.5 to 17.5 N 0008 to 12:01 Si 0.2 to 0.6 Mn 0.1 to 0.3 Cr 12:03 to 12:07 V 0025 to 12:06 W 12:03 to 12:08 Ni 12:09 to 0.2 Ti 0003 to 0009 Nb / Ta 0003 to 0009 al 0001 to 0009 C 12:01 to 12:07 P MAX 0008 S MAX 0015
  • the hardness of the body part exceeds a value of 66 HRC, in particular of 67 HRC, the highest possible stability of the coating can be achieved. Even in the case of a small-area pressure load, ie a locally high, specific surface load, high hardness of the body part or of the main body prevents the brittle hard material layer from breaking in. An improved support of the coating on the substrate with high hardness causes an intact hard layer, prevents a partial peeling thereof, thereby extending the possible service life of the tool.
  • the material toughness can be increased in spite of high material hardness.
  • the aforementioned tool according to the invention or a like object has a coating with a largely single-phase crystalline structure.
  • a predominantly single-phase, cubic face-centered atomic structure of the applied layer can only be achieved at a coating temperature of substantially above 500 ° C.
  • thermodynamic and kinetic energy in the micro-region during layer formation or layer build-up, exerts a decisive influence on the formation of the structure of the growing layer.
  • a high energy promotes the diffusion of the atoms in a columnar layer forming and thereby causes a compact, contiguous, face-centered cubic, electrically conductive, substantially single-phase layer structure with high layer hardness.
  • a hexagonal atomic structure of a layer is hard, but also brittle and electrically non-conductive.
  • a high energy or temperature load in the micron range is achieved on the substrate with an abovementioned chemical composition without a decrease in material hardness, hard, smooth and tough surface coatings can be produced which also have a low tendency to breakdown due to the high substrate hardness due to local stresses have and thus cause a high quality of the tool or object.
  • a temperature of about 520 ° C. to 600 ° C. in PVD or CVD processes is usually used for a single-phase crystalline formation thereof.
  • high coating temperatures can have a retroactive effect on the material hardness of a main body or body part made of conventional tool steels, eg high-speed steels.
  • HIP hot isostatic pressing
  • the thus prepared HIP block with a diameter of approx. 400 mm ⁇ was hot-rolled at high temperature onto a round bar with a diameter of 31 mm ⁇ .
  • an Fe-Co-Mo-N alloy in the present case the material S 903 PM, in particular in the range between RT and 600 ° C has a significantly higher thermal conductivity than a high-speed steel of type S 6-5-2 ( M2).
  • the hardness and Young's modulus of a layer deposited on a substrate by the PVD or CVD method increases with higher coating temperatures. At the same time, the roughness of the surface of the applied layer, in particular of a single-phase crystalline structure, is reduced.
  • An increased nitrogen concentration on the surface of the tool body part can also be achieved by embroidering it to a nitrogen content of up to 0.4% by weight.
  • a favorable kinetics for growth of the layer on the substrate can be achieved.
  • X-ray studies can be used to determine the structure of a PVD or CVD layer applied to a substrate or tool.
  • Single-phase crystalline, cubic-face-centered structure having high-temperature layers show at the same X-ray intensity due to the lattice planes of the crystals a much higher reflectance in the angular range of the compound TiN / AIN, as in Fig. 4 is illustrated.
  • test results of layers according to Fig. 4 show that high temperature layers applied at 575 ° C are at least 5-fold, preferably at least 10-fold, in intensity as measured in pulses by TiN as compared to low-temperature layers applied to 375 ° C (lower panel) / AIN at 2 theta (2 ⁇ ) between 60 and 80.
  • a milling cutter with grinding addition formed by cutting and subjected to a thermal treatment in vacuum at a solution annealing temperature of 1180 ° C with a subsequent quenching in nitrogen at 5 bar. This was followed by hardening of the raw mill at a temperature between 580 ° C and 620 ° C, for a period of between 2 and 4 hours.
  • a similar milling cutter was made of S-ISO-PM super high speed steel with a previously mentioned composition, thermally tempered and coated with hard material.
  • Figure 5 shows that the service life of the tool according to the invention was significantly greater or the cutting wear extremely low. Such a possible duration of use of a tool according to the invention can be extended to a high degree.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Chemical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Claims (11)

  1. Outil ou objet, particulièrement outil pour l'usinage de métaux, ledit outil étant formé d'une partie de corps d'une alliage de fer-cobalt-molybdène/tungstène-nitrogène sensiblement exempte de carbone et trempé par précipitation, portant un revêtement appliqué selon le procédé PVD ou CVD et ayant une structure sensiblement cristalline monophasée, cubique à faces centrées, dans lequel la partie de corps est fabriquée en utilisant un procédé métallurgique des poudres (PM) incluant une atomisation de métal liquide pour produire un bloc d'un alliage contenant en pourcentage en poids : cobalt (Co) 15,0 à 30,0 molybdène (Mo) jusqu'à 20,0 nitrogène (N) 0,005 à 0,12 silicium (Si) 0,1 à 0,8 manganèse (Mn) 0,1 à 0,6 chrome (Cr) 0,02 à 0,2 vanadium (V) 0.02 à 0,2 tungstène (W) jusqu'à 25,0 molybdène + 0,5 tungstène Mo + W/2 10,0 à 22,0 nickel (Ni) 0,01 à 0,5 titane (Ti) 0,001 à 0,2 niobium/tantale (Nb)/(Ta) 0,001 à 0,1 aluminium (Al) 0,043 en maximum carbone (C) 0,09 en maximum phosphore (P) 0,01 en maximum soufre (S) 0,02 en maximum oxygène (O) 0,032 en maximum
    avec le fer (Fe) et des impuretés conditionnées par la production comme le reste,
    sous la condition, que la relation des concentrations de cobalt à molybdène ait un valeur de 1,3 à 1,9 Co Mo = 1 , 3 - 1 , 9
    Figure imgb0007
    et que la surface de l'outil ou de l'objet porte un revêtement d'une épaisseur d'au moins de 0,8 µm ayant une portion plus grande que 70 pourcent volumétrique d'au moins une couche, qui a une structure cristalline monophasée, cubique à faces centrées.
  2. Outil ou objet selon la revendication 1, dans lequel la partie de corps consiste, en pourcentage en poids, de cobalt (Co) 20,0 à 30,0 molybdène (Mo) 11,0 à 19,0 tungstène (W) 0,01 à 0,9
  3. Outil ou objet selon une quelconque des revendications 1 ou 2, caractérisé en ce, qu'un ou plusieurs composant(s) d'alliage ou un ou plusieurs élément(s) accompagnant(s) a (ont) une concentration en pourcentage en poids de : Co 24,0 à 27,0 Mo 13,5 à 17,5 N 0,008 à 0,01 Si 0,2 à 0,6 Mn 0,1 à 0,3 Cr 0,03 à 0,07 V 0,025 à 0,06 W 0,03 à 0,08 Ni 0,09 à 0,2 Ti 0,003 à 0,009 Nb/Ta 0,003 à 0,009 Al 0,001 à 0,009 C 0,01 à 0,07 P 0,008 en maximum S 0,015 en maximum.
  4. Outil ou objet selon une quelconque des revendications 1 à 3, caractérisé en ce, que la relation des concentrations de Co à Mo dans l'alliage a un valeur de 1,5 à 1,8 Co Mo = 1 , 5 - 1 , 8
    Figure imgb0008
  5. Outil ou objet selon une quelconque des revendications 1 à 4, caractérisé en ce, que la dureté de la partie de corps dépasse un valeur de 66 HRC, particulièrement de 67 HRC.
  6. Outil ou objet selon une quelconque des revendications 1 à 5, caractérisé en ce, que la partie de corps de l'outil ou de l'objet est fabriquée d'un alliage précité incluant un façonnage à chaud du bloc comprimé d'une façon isostatique à chaud (HIP) avec un dégrée de façonnage d'au moins de 2,5 fois.
  7. Outil ou objet selon une quelconque des revendications 1 à 6, caractérisé en ce, que la partie de corps a un teneur de nitrogène élevé vers la surface.
  8. Outil ou objet selon une quelconque des revendications 1 à 7, dans lequel le revêtement de la partie de corps à une portion plus grande que 85 % volumétriques, et consiste d'au moins une couche ayant une structure cristalline monophasée, cubique à faces centrées, préférablement de plusieurs couches individuelles de cette sorte.
  9. Outil ou objet selon la revendication 8, caractérisé en ce, qu'au moins une couche du revêtement a une composition de (Σ MexAly)N, dans laquelle le nombre stoechiométrique respectif dans la liaison atomique de
    X est 0,25 à 0,50, préférablement 0,28 à 0,35 et
    Y est 0,50 à 0,75, préférablement 0,65 à 0,72
    et Σ Me comprend au moins un élément des groupes 4, 5 ainsi que 6 de la classification périodique des éléments.
  10. Outil ou objet selon une quelconque des revendications 8 ou 9, caractérisé en ce, qu'au moins cette couche du revêtement, qui est en proximité du substrat, est formée à la base de
    (Crx Aly) N avec le nombre stoechiométrique respectif dans la liaison atomique de étant
    X jusqu'à 0,3 et
    Y jusqu'à 0,7 ou
    (Tix Aly) N avec le nombre stoechiométrique respectif dans la liaison atomique de étant
    X jusqu'à 0,33 et
    Y jusqu'à 0,67.
  11. Outil ou objet selon la revendication 8, caractérisé en ce, qu'au moins une partie du revêtement est formée comme un revêtement d'oxyde métallique, ayant sensiblement la composition de (Cr + Al2O3 et une structure d'alpha ou de kappa.
EP20080450060 2007-05-08 2008-04-22 Outil doté d'un revêtement Active EP1990438B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200830049T SI1990438T1 (sl) 2007-05-08 2008-04-22 Orodje s prevleko

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0070707A AT505221B1 (de) 2007-05-08 2007-05-08 Werkzeug mit beschichtung

Publications (2)

Publication Number Publication Date
EP1990438A1 EP1990438A1 (fr) 2008-11-12
EP1990438B1 true EP1990438B1 (fr) 2010-07-07

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Country Link
US (1) US7851067B2 (fr)
EP (1) EP1990438B1 (fr)
AR (1) AR066254A1 (fr)
AT (2) AT505221B1 (fr)
BR (1) BRPI0801492B1 (fr)
CA (1) CA2630716C (fr)
DE (1) DE502008000891D1 (fr)
ES (1) ES2348322T3 (fr)
RU (1) RU2384650C2 (fr)
SI (1) SI1990438T1 (fr)
UA (1) UA91381C2 (fr)

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US8740515B2 (en) * 2008-09-03 2014-06-03 Black & Decker Inc. Metal cutting drill bit
EP2502709B1 (fr) 2011-03-22 2017-02-01 Black & Decker Inc. Ciseaux
USD737875S1 (en) 2013-03-15 2015-09-01 Black & Decker Inc. Drill bit
US9333564B2 (en) 2013-03-15 2016-05-10 Black & Decker Inc. Drill bit
USD734792S1 (en) 2013-03-15 2015-07-21 Black & Decker Inc. Drill bit
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UA91381C2 (en) 2010-07-26
RU2384650C2 (ru) 2010-03-20
BRPI0801492B1 (pt) 2019-11-26
EP1990438A1 (fr) 2008-11-12
SI1990438T1 (sl) 2010-09-30
BRPI0801492A2 (pt) 2008-12-30
ES2348322T3 (es) 2010-12-02
ATE473309T1 (de) 2010-07-15
US7851067B2 (en) 2010-12-14
RU2008118281A (ru) 2009-11-20
AR066254A1 (es) 2009-08-05
AT505221B1 (de) 2009-09-15
US20090007992A1 (en) 2009-01-08
CA2630716C (fr) 2012-02-14
CA2630716A1 (fr) 2008-11-08
DE502008000891D1 (de) 2010-08-19

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