• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    al-cr-b-n / ti-al-n multi-layer coated cutting tools. The present invention relates to a multilayer coating system deposited on at least a portion of a solid body surface and which contains in the multilayer architecture individual layers of al-cr-bn deposited by a method. physical vapor deposition characterized in that, at least a part of the overall thickness of the multilayer coating system, the individual layers of al-cr-bn are combined with the individual layers of ti-al-n, wherein the individual al-cr-bn and ti-al-n layers are alternately deposited on one another, and wherein the thickness of the individual al-cr-bn layers is thicker than the thickness of the layers. ti-al-n and thus the residual stress of the multilayer coating system is considerably lower compared to the residual stress of the corresponding analog al-cr-bn monolayer coating.
    公开号:BR112012019543B1
    申请号:R112012019543-3
    申请日:2011-01-25
    公开日:2019-11-26
    发明作者:Markus Lechthaler；Christian Tritremmel
    申请人:Oerlikon Trading Ag, Trübbach；
    IPC主号:
    专利说明:

    [001] The present invention relates to coatings deposited by means of physical vapor deposition methods. These coatings are mainly based on aluminum, chromium and boron nitrides and have improved wear resistance. In addition, these coatings can be particularly applied to cutting tools.
    [002] According to the present invention, Al-CrB-N films are part of a multilayer coating architecture.
    State of the art [003] Both Ti-AI-N and Cr-AI-N consist of well-established wear-resistant coating systems. On the one hand, TiAI-N is, for example, widely used for machining hardened steel. It is structurally stable up to about 900 ° C in the presence of oxygen. However, Ti-AI-N significantly loses its hardness at temperatures above 600 ° C. On the other hand, Cr-AI-N has, at least after applications of hot temperature in oxygen atmosphere, a hardness superior to Ti-AI-N and resistance to oxidation much better. Cr-AI-N is even structurally stable up to 1100 ° C in the presence of oxygen. However, compared to other coatings, Cr-AI-N does not essentially improve the performance of coated cutting tools when machining hardened steels.
    [004] Due to the very interesting properties of titanium and aluminum nitrides and chrome and aluminum nitrides, many new coating system designs still include these nitrides or are based on them.
    [005] The document on the under. WO2006084404 presents a system
    Petition 870190030799, of 03/29/2019, p. 4/26
    2/17 coating theme designed to be specially used as a hard coating with extremely high oxidation resistance for the protection of cutting tools that also require wear protection. The coating system described comprises at least one main layer on a substrate surface, a hidden layer and an outer surface layer, where the surface layer comprises AlCrZ, where Z can consist of N, C, B, CN, BN, CBN, NO, CO, BO, CNO, BCNO or CBNO. The covered layer comprises any of the following materials or combinations thereof: a metal nitride, carbide or carbonitride, a metal nitride, carbide or silicon carbide, where the metal consists of at least one transition metal of the group IVB, VB or VIB or a multiple layer of materials, a material, a combination or a multiple layer of materials that comprise at least one metal or carbon, preferably a diamond-like carbon layer. The main layer comprises a nitride, carbide or carbonitride or a multiple layer of nitride, carbide or carbonitride material. The main layer can be deposited on the workpiece directly or through an interlayered adhesion layer, which can consist of a transition metal or metal nitride mentioned above, preferably AlCr, AITi, Cr, Ti, AICrN, AITiN, TiN or CrN.
    [006] Similarly, in in on the document.
    WO2008037556 a coating system based on AICrN is presented which also considers a combination with TiAIN. More precisely, in WO2008037556, a coating system for improving wear resistance is presented below, consisting of at least one layer with the following composition: (Ah-ab-cCraBbZc) X, where X is at least one among N, C, CN, NO, CO, CNO and Z is at least one among W, Mo, Ta, Cb (also
    Petition 870190030799, of 03/29/2019, p. 5/26
    3/17 mentioned as Nb) and where 0.2 <a <0.5, 0.01 <b <0.2 and 0.001 <c <0.04 is valid. Additionally, it is shown that the at least one AlCrBZX layer mentioned can thus be applied directly to the surface of the workpiece body or can be applied to form the outermost layer of the coating system. Similarly, it is mentioned that at least one layer of AlCrBZX can be embedded within a multilayer system between a first layer subsystem towards the workpiece body surface and a second layer subsystem towards the body surface coated. Furthermore, it is mentioned that in a multi-layer system more than one of the AlCrBZX layers covered by material composition and / or equal or varied stoichiometry can be provided. Thus, such layers of the AlCrBZX type can remain directly on top of each other with stoichiometry and / or different material composition or can be separated by respective coating layer subsystems. Additionally, it is shown that the coating system can comprise at least one interlayer of (TidAle) N or (CrfAlg) N between the substrate and the outermost layer, where 0.4 <d 0.6, 0.4 <and < 0.6, 0.4 <f <0.7 and 0.3 <g <0.6. Thus, the TiAIN or CrAIN interlayer addressed can be provided so that it consists of a layer of a multilayer subsystem between the body surface and the AlCrBZX layer. In addition, the coating system may comprise a multiple layer of alternating layers of at least one of the interlayer covered and at least one of the layers of AlCrBZX.
    [007] Additionally, the document on the under. JP2009012139 features a cutting tool whose surface is coated with a hard AlCrBN coating layer that has a layer thickness of 0.8 to 5 pm. It is mentioned that the reverse layer
    Petition 870190030799, of 03/29/2019, p. 6/26
    4/17 AlCrBN coating described provides high hardness, excellent lubricity and wear resistance in high speed cutting of materials with high weldability. The AlCrBN coating described consists of a first film deposited on the surface of the substrate that has a composition of (AIxCd-xBy) Nz with 0.5 <X <0.7, 0.001 <Y <0.1, 0.9 < Z <1.25, X + Y <0.75 and a second film deposited on the first film which has a composition of (AlaCr1-aBb) Nc with 0.4 <a <0.7, 1 <b <2, 5, 0.25 <c <0.68. The coating generally presents an average AlaCr1aBpNy composition, where 0.5 <α <0.7, 0.003 <β <0.12, 0.8 <γ <1.25.
    Purpose of the invention [008] The inventors have observed that Al-Cr-B-N effectively single-layer coatings exhibit improved tribology and hardness compared to well-established Al-Cr-N coatings. However, there is still a need for further improvement. Al-Cr-B-N coatings also exhibit very high residual stress despite their interesting properties. This worsens the cutting performance of tools coated with these promising coating films. This is especially disadvantageous in applications that require high coating thicknesses, where particularly low residual stresses in the coatings are required to prevent delamination of the coating.
    [009] It is an objective of the present invention to provide coatings that exhibit low residual stress, optimized hardness and improved wear coefficients, as compared with Al-Cr-N and Al-Cr-B-N monolayer coatings. Description of the invention [0010] In order to achieve reduced residual stresses in Al-Cr-B-N coatings, different structures of multiple ca
    Petition 870190030799, of 03/29/2019, p. 7/26
    5/17 layers were synthesized by means of physical vapor deposition processes, preferably with the use of ionic deposition methods by reactive cathodic arc.
    [0011] The inventors have surprisingly found that multilayer coating structures that combine individual layers of Al-Cr-BN and TiAI-N particularly alternately, especially when the thickness of the individual layers of Al-Cr-BN is thicker than the thickness of the individual layers of Ti-AI-N, basically maintaining a predominantly 2: 1 ratio to the thickness of the individual layers of AlCr-BN related to the thickness of the individual layers of Ti-AI-N, exhibit impressive low residual stresses and high hardness at the same time. By adding individual layers of Ti-AI-N, it was possible to considerably improve the elasticity of the coating. Consequently, the coating adhesion strength, strength of strength and roughness of the coating could be considerably improved in general.
    [0012] In this way, the inventors present a coating with low residual stress in combination with optimized hardness and good tribological properties.
    [0013] According to an embodiment of the present invention, a combination of Al-Cr-BN and Ti-AI-N is carried out in a multi-layer architecture with at least two layers of Ti-AI-N and at least two layers of Al-Cr-BN alternately deposited and where the individual layer that is closest to the substrate surface consists of a layer of Ti-AI-N, and the individual layer that is closest to the coating surface consists of a layer of Al-Cr-BN. More preferably, at least three layers of Ti-AI-N and at least three layers of Al-Cr-B-N are alternately deposited. The first layer of Ti-AI-N can have a
    Petition 870190030799, of 03/29/2019, p. 8/26
    6/17 different layer thickness compared to the other individual layers of Ti-AI-N and can also be deposited directly on the substrate surface for use as an adhesion layer. The last layer of Al-Cr-B-N can have a different thickness compared to the other individual layers of Al-CrB-N and can also be deposited as the outermost layer.
    [0014] According to a preferred embodiment of the present invention, multi-layer coatings of AI-Cr-BN / Ti-AI-N are synthesized by means of cathodic arc evaporation in an atmosphere of N2 at 3.5 Pa and 500 ° C in an Oerlikon Balzers INNOVA industrial scale deposition system. For the purpose of forming the multilayer architecture, the Al-Cr-BN layers are deposited from at least one target source source material containing aluminum, chromium and boron with the following element composition: AlxCryBz, where x + y + z = 1, x = 1.8. y and 0.1 <z <0.3 (the values of x, y and z are given here in atomic fractions). The Ti-AI-N layers are deposited from at least one target source source material containing aluminum and titanium. In this preferred embodiment, TiAI targets with a 50:50 elemental atomic percentage composition were used. Additionally, the multilayer coating design according to this modality consists of a first layer of 0.3 pm thick Ti-Al-N deposited on the substrate surface, followed by eight iterations of individual layers of Al-Cr 0.2 pm-BN and 0.1 pm Ti-AI-N deposited alternately (multilayer bilayer period thickness: 0.3 pm) and concluding with an Al-Cr-BN layer of 0, 8 pm as the outermost layer, resulting in a total coating thickness of about 3.5 pm.
    [0015] X-ray diffraction revealed that all coatings exhibit a cubic structure with faces centered in the state CONPetition 870190030799, of 29/03/2019, p. 9/26
    ONE form deposited. X-ray photoelectron spectroscopy showed peaks that indicate the formation of a BxNy phase in the outermost layer of Al-Cr-B-N.
    [0016] It has been observed that the increase in the B content results in a grain refinement.
    [0017] After examining the tribological and mechanical properties of different Al-Cr-BN coatings deposited as simple monolayer coatings by varying element and thickness compositions, it could be determined that Al-Cr-BN monolayer coatings exhibit hardness maximum of about 43 GPa by basically residual stresses of around -1.5 GPa and good wear resistance.
    [0018] Similar examinations of tribological and mechanical properties were also carried out on coatings synthesized in accordance with the present invention. In order to draw representative conclusions about the advantages of multi-layered coatings of AI-Cr-BN / Ti-AI-N synthesized in accordance with the present invention compared to Al-Cr-BN monolayer coatings, Individual layers of Al-Cr-BN from the multilayer coatings were synthesized by coating parameters analogous to those used by the deposition of the examined Al-Cr-BN monolayer coatings. For comparison, the multilayer coatings of AI-Cr-B-N / Ti-AI-N synthesized in accordance with the present invention were deposited with a general coating thickness similar to Al-Cr-B-N monolayer coatings analogous.
    [0019] In the context of this patent specification, the word analogue is used to refer to Al-Cr-B-N monolayer coatings and AI-Cr-B-N / Ti-AI-N monolayer coatings in which:
    Petition 870190030799, of 03/29/2019, p. 10/26
    8/17
    - the respective Al-Cr-B-N layers are deposited using the same coating parameters and using the same type of source material targets with the same target element composition, and
    - total coating thickness is almost equal.
    [0020] The comparison revealed a significant improvement in tribological and mechanical properties.
    [0021] The combination obtained of very high hardness and very low residual stress at the same time exhibited by the multilayer coatings synthesized in accordance with the present invention was especially surprising.
    [0022] Multilayer coatings synthesized according to the present invention using AlxCryBz source material targets with z values between 0.15 and 0.25 for the deposition of the individual layers of Al-Cr- BN exhibited the best tribological and mechanical properties. Very low residual stresses of around -0.25 GPa and optimized hardness of around 50 GPa, as well as improved tribological properties, which include wear coefficients in the range of 4x10 -16 m 3 / Nm at 500 ° C , could be measured.
    [0023] Particularly, due to the extremely low residual stresses and consequently the improved coating adhesion strength in general and the strength intensity observed by the multi-layer Al-Cr-BN / Ti-Al-N coatings synthesized according to of the present invention, a preferred embodiment added to the invention consists of the synthesis of multilayer coatings of AI-Cr-BN / Ti-AI-N with relatively thick coating thickness in comparison with the physical vapor deposition processes deposited by means of example, arc evaporation and sputtering methods. According to this hand
    Petition 870190030799, of 03/29/2019, p. 11/26
    9/17 quality of the present invention, multi-layer coatings of AI-Cr-BN / Ti-AI-N are deposited which have a total coating thickness equal to or thicker than 3 μm, preferably equal to or thicker than 5 μm. Coating thicknesses thicker than 10 μm, 20 μm and even up to 30 μm can be achieved and the coatings still retain their excellent properties, as described above. In some applications, such thicknesses are preferred, as they may even increase the life span additionally. Thicknesses even greater than 30 μm can be achieved.
    [0024] According to an additional preferred embodiment of the present invention, the multilayer coating of AI-Cr-B-N / TiAI-N, the coating is synthesized by means of reactive cathodic arc evaporation. Due to the deposition using arc evaporation, the macroparticles of metallic materials from the target are present in the coating, which deviate significantly in their composition and properties from the rest of the coating. This is a consequence of the typical droplet production that did not completely react with the reactive gas during arc evaporation. These macroparticles (droplets) can be kept small enough that they do not worsen the mechanical, thermal, chemical and tribological properties of the multi-layer coatings of AICr-B-N / Ti-AI-N synthesized in accordance with the present invention. However, at the same time, these macroparticles still contribute to improving the strength intensity of the coating in general by adding plasticity.
    [0025] According to an additional preferred embodiment of the present invention, the multi-layer Al-Cr-B-N / TiAI-N coating consists of a nano-laminated coating, whose individual layers of Al-Cr-BN have a thickness <100 nm, from
    Petition 870190030799, of 03/29/2019, p. 12/26
    10/17 preferably, which have a bilayer period of the Al-Cr-B-N and Ti-AI-N nanolayers between 75 and 15 nm.
    [0026] According to an additional preferred embodiment of the present invention, the multi-layer Al-Cr-B-N / TiAI-N coating, the coating contains an additional adhesion layer for further enhancement of the coating's adhesion to the substrate and / or an additional outermost layer or upper layer which may consist, for example, of a decorative layer or a tread layer.
    [0027] According to an additional preferred embodiment of the present invention, the multi-layer coating of Al-Cr-B-N / TiAI-N, the coating that presents in the direction of the coating thickness at least one area with a thickness of at least 1 pm, where the multilayer architecture of AI-Cr-BN Ti-AI-N is characterized by the fact that the bilayer period of the individual layers of Ti-AI-N and Al-Cr-BN is constant.
    [0028] According to an additional preferred embodiment of the present invention, the multi-layer Al-Cr-B-N / TiAI-N coating, the coating which presents in the direction of the coating thickness at least one area of multiple architecture layers of AI-Cr-BN / Ti-AI-N with constant bilayer period, as defined in the previous modality, and which additionally has at least one layer of Ti-AI-N with different thickness in relation to the individual layers of Ti-AI-N contained in at least one area of multilayered architecture with constant bilayer period.
    [0029] According to an additional preferred embodiment of the present invention, the multi-layer Al-Cr-B-N / TiAI-N coating, the coating that presents in the direction of the coating thickness at least one area of multiple architecture layers of AI-Cr-BN / Ti-AI-N with constant bilayer period, as defined in 870190030799, dated 29/03/2019, p. 13/26
    11/17 defined in the previous modality, which additionally has at least one layer of Al-Cr-BN with different thickness in relation to the individual layers of Al-Cr-BN contained in at least one area of multi-layered architecture with constant bilayer period. [0030] A multilayer coating system deposited on at least part of a solid body surface and containing, in the multilayer architecture, individual layers of Al-Cr-BN deposited using a method of physical deposition of steam characterized by the fact that, in at least part of the total thickness of the multilayer coating system, the individual layers of Al-Cr-B-N are combined with the individual layers of Ti-AI-N, where the individual layers of Ti-AI-N and AlCr-BN are alternately deposited on top of each other, where the thickness of the individual layers of Al-Cr-BN is greater than the thickness of the individual layers of Ti-AI-N and thus, the residual stress of the multilayer coating system is considerably lower compared to the residual stress of the corresponding analog Al-Cr-BN monolayer coating system and, preferably, the hardness of the coating system multilayer coating is greater than or equal to the hardness of the corresponding Al-Cr-B-N monolayer coating.
    [0031] In the multilayer coating system, as previously mentioned, the thickness ratio of the individual layers of Al-Cr-BN to the individual layers of Ti-AI-N in the coating part where the individual layers of Ti-AI-N AI-N and AlCr-BN are deposited alternately on top of each other, it can be basically 2: 1.
    [0032] In the multilayer coating system, as mentioned earlier, the layer composition of the Al-Cr-B-N layers contained in the coating part where the layers
    Petition 870190030799, of 03/29/2019, p. 14/26
    12/17 individual Ti-AI-N and Al-Cr-B-N are deposited alternately on top of each other, it may consist of AlaCrbBcNd with a + b + c = 1, a = 9/5. y, 0.1 <z 0.3, where a, b and c are the atomic fractions determined after the element analysis that takes into account only the elements Al, Cr and B for the element equilibrium.
    [0033] In the multilayer coating system, as mentioned earlier, the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are alternately deposited on top of each other can contain at least two layers individual Ti-AI-N and two Al-Cr-BN, more preferably at least three individual layers of Ti-AI-N and three of Al-Cr-BN.
    [0034] In the multilayer coating system, as mentioned earlier, the thickness of the individual layers of Ti-AI-N and Al-Cr-BN, in the coating part where the individual layers of Ti-AI-N and Al- Cr-BN are deposited alternately on top of each other, preferably remaining constant.
    [0035] In the multilayer coating system, as mentioned earlier, the element composition of the individual layers of Al-Cr-BN in the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are deposited alternately on top of one another is preferably constant.
    [0036] In the multilayer coating system, as mentioned earlier, the individual layers of Ti-AI-N and Al-Cr-BN in the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are deposited alternately on top of each other may consist of nano-layers whose corresponding individual thicknesses are each <100 nm, preferably the bilayer period defined as the sum of the thicknesses corresponding to an individual nano-layer of Al-Cr-BN and one of Ti-Al-N is <100 nm, preferably the bilayer period is between 75 and 15
    Petition 870190030799, of 03/29/2019, p. 15/26
    13/17 nm.
    [0037] In the multilayer coating system, as mentioned earlier, an individual layer of additional Ti-AI-N can be deposited between the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are alternately deposited on top of each other and the surface of the substrate and whose values of thickness and concentration of elements are the same or different from the corresponding values of the individual layers of Ti-AI-N contained in the coating part where the individual layers of Ti-AI-N AI-N and Al-Cr-BN are deposited alternately on top of each other.
    [0038] In the multilayer coating system, as mentioned earlier, an individual layer of additional Al-Cr-BN can be deposited between the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are alternately deposited on top of each other and the surface of the coating and whose values of thickness and concentration of elements are the same or different from the corresponding values of the individual layers of Al-CrB-N contained in the coating part where the individual layers of Ti-CrB-N AI-N and Al-Cr-BN are deposited alternately on top of each other.
    [0039] In the multilayer coating system, as mentioned earlier, the individual layer of additional Ti-AI-N can be deposited directly on the surface of the substrate and / or the individual layer of additional Al-Cr-B-N is deposited as the outermost layer.
    [0040] In the multilayer coating system as mentioned above, an additional adhesion layer that does not consist of Ti-AI-N can be deposited directly on the substrate surface to improve the adhesion of the coating to the substrate and / or a layer additional external which does not consist
    Petition 870190030799, of 03/29/2019, p. 16/26
    14/17 in Al-Cr-B-N is deposited on the surface of the coating as the top layer, this layer can consist, for example, of a thin decorative layer or a rolling layer.
    [0041] In the multilayer coating system, as mentioned earlier, the overall coating thickness of the multilayer coating system can be chosen to be equal to or thicker than 3 pm, preferably equal to or thicker than than 5 Mm. In addition, the coating and general thickness can be chosen to be equal to or thicker than 10 pm, 20 pm, and up to 30 pm or thicker according to the application requirements.
    [0042] In the multilayer coating system, as mentioned earlier, at least the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are alternately deposited on top of each other is preferably , synthesized by means of reactive cathodic arc evaporation. Due to the deposition using arc evaporation, the macroparticles of metallic materials from the target are present in the coating, which deviate significantly in their composition and properties from the rest of the coating. These macroparticles contribute to improving the strength of the coating in general by adding elasticity and do not worsen the mechanical, thermal, chemical and tribological properties of the multi-layer coatings of AI-Cr-B-N Ti-AI-N.
    [0043] In the multilayer coating system, as mentioned above, at least the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are preferably deposited alternately on top of each other exhibit a cubic structure with faces centered in the state as deposited.
    Petition 870190030799, of 03/29/2019, p. 17/26
    15/17 [0044] In the multilayer coating system, as mentioned earlier, the outermost layer can consist of an Al-Cr-B-N layer that exhibits the formation of BxNy.
    [0045] According to the invention, a solid body can be at least partially coated with a different multilayer coating system than that previously described. The solid body can consist, for example, of a cutting tool, a forming tool, mold, die, a precision component, an automotive component or a component to be used in the engine industry or in the aerospace industry, such as example, a turbine component.
    [0046] In particular, the invention can be used for the following applications:
    1. Tools:
    - disposable inserts based on carbide, cermet, boron nitride, silicon nitride or silicon carbide for grinding, turning or drilling
    - cutters, such as ballhead cutters and endmills
    - thread cutters
    - helical cutters
    - profile cutters
    - stick blades
    - drills
    - dies
    - punchers
    - engraving tools
    - countersinks
    2. Forming and stamping tools:
    - aluminum die-casting molds
    Petition 870190030799, of 03/29/2019, p. 18/26
    16/17
    - plastic coating forms
    - extrusion dies
    - blade forming tools
    - dies for metal stamping
    - forging jaws, especially for hot forging
    - tools for hot setting
    3. Components and parts especially in the engine industry:
    - Valves
    - eccentric wrench
    - loofah needles
    - rockers
    - eccentrics
    - cylinder shafts
    - rocker fingers
    - cam followers
    - camshafts
    - cam shaft bearings
    - valve tappets
    - tilt levers
    - piston rings
    - piston pins
    - injectors and injector parts
    - turbine blades
    - pump parts
    - high pressure bomb
    - gears
    - gear wheels
    - backrest for washer
    Petition 870190030799, of 03/29/2019, p. 19/26
    17/17
    - components of the electric acceleration and control system
    - components in the ABS system
    - bearings
    - ball bearings
    - cylinder bearing
    - cam shaft bearing [0047] The invention presented in this patent document includes the method for manufacturing a solid body coated with the multilayer coating system described above in accordance with the present invention.
    权利要求:
    Claims (4)
    [1]
    1. A multilayer coating system deposited on at least part of a solid-body surface and containing, in the multilayer architecture, individual layers of Al-Cr-BN deposited by means of a physical vapor deposition method, said system being characterized by the fact that, in at least part of the overall thickness of the multilayer coating system, the individual layers of Al-Cr-BN are combined with the individual layers of Ti-AI-N, being that the individual layers of Ti-AI-N and Al-Cr-BN are deposited alternately on top of each other, and the thickness of the individual layers of Al-Cr-BN is thicker than the thickness of the individual layers of Ti-AI-N, and thus the residual stress of the multilayer coating system is considerably less compared to the residual stress of the corresponding Al-Cr-BN monolayer coating system and, preferably reference, the hardness of the multilayer coating system is greater than or equal to the hardness of the corresponding Al-Cr-B-N monolayer coating.
    [2]
    2. Multilayer coating system, according to claim 1, characterized by the fact that the thickness ratio of the individual layers of Al-Cr-BN related to the individual layers of Ti-AI-N, in the coating part where the individual layers of Ti-AI-N and Al-Cr-BN are deposited alternately on top of each other, it is basically 2: 1.
    [3]
    3. Multilayer coating system according to claim 1 or 2, characterized in that the layer composition of the layers of Al-Cr-BN, contained in the coating part where the individual layers of Ti-AI- N and Al-Cr-BN are
    Petition 870190030799, of 03/29/2019, p. 21/26
    2/2 alternately deposited on top of each other, is AlaCrbBcNd with a + b + c = 1, a = 9/5 · y, 0.1 <c 0.3, where a, b and c are the atomic fractions determined after element analysis taking into account only elements Al, Cr and B for element balance.
    [4]
    Multi-layer coating system according to any one of claims 1 to 3, characterized in that the coating part where the individual layers of Ti-AIN and Al-Cr-BN are alternately deposited one on the other contains at least two individual layers of Ti-AI-N and two of Al-Cr-BN, more preferably at least three individual layers of Ti-AI-N and three of Al-Cr-BN.
    类似技术:
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    同族专利:
    公开号 | 公开日
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    MY156403A|2016-02-26|
    KR101800039B1|2017-12-20|
    CN102725434B|2014-10-29|
    KR20120113790A|2012-10-15|
    US20130052477A1|2013-02-28|
    CA2788142A1|2011-08-11|
    US8926722B2|2015-01-06|
    BR112012019543A2|2017-06-27|
    CN102725434A|2012-10-10|
    JP2013518987A|2013-05-23|
    JP5684829B2|2015-03-18|
    MX343044B|2016-10-21|
    CA2788142C|2019-02-19|
    WO2011095292A1|2011-08-11|
    EP2531633B1|2017-11-22|
    SG182749A1|2012-08-30|
    RU2560480C2|2015-08-20|
    ES2657844T3|2018-03-07|
    MX2012009044A|2012-12-17|
    EP2531633A1|2012-12-12|
    引用文献:
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    法律状态:
    2017-11-28| B25G| Requested change of headquarter approved|Owner name: OERLIKON TRADING AG, TRUBBACH (CH) |
    2018-04-10| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-02-05| B06T| Formal requirements before examination|
    2019-10-08| B09A| Decision: intention to grant|
    2019-11-26| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/01/2011, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/01/2011, OBSERVADAS AS CONDICOES LEGAIS |
    优先权:
    申请号 | 申请日 | 专利标题
    US30133610P| true| 2010-02-04|2010-02-04|
    US61/301,336|2010-02-04|
    PCT/EP2011/000295|WO2011095292A1|2010-02-04|2011-01-25|CUTTING TOOLS WITH Al-Cr-B-N / Ti-Al-N MULTILAYER COATINGS|
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