TiuNbvZrwTaxXyAlzN multi-component nitride coating cutter

Abstract

The invention discloses a TiuNbvZrwTaxXyAlzN multi-component nitride coating cutter which comprises a cutter base body and a TiuNbvZrwTaxXyAlzN multi-component nitride coating deposited on the cutter base body, X is one element of Cr, Hf, W and Mo, z is larger than or equal to 0.30 and smaller than or equal to 0.60, u, v, w and x are larger than or equal to (1-z) / 5-0.02 and smaller than or equal to (1-z) / 5 + 0.02, y is smaller than or equal to (1-z) / 5 + 0.02, and y = 1-u-v-w-x-z. The coated cutting tool has high hardness, high wear resistance and excellent high-temperature oxidation resistance, good bonding strength is shown between the coating and the matrix, and the coated cutting tool can be suitable for cutting of materials difficult to machine.

Description

Technical Field

[0001] The present invention belongs to the technical field of cutting tool preparation, and relates to a cutting tool with a multi-component nitride coating, and specifically relates to a Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools. Background Art

[0002] Coated tools combine the advantages of high wear resistance and high thermal performance of the surface coating with the high toughness and high strength of the substrate. They can greatly improve the cutting performance of the tool and improve the machining efficiency, becoming an important development direction of modern tools. TiAlN coating has excellent properties such as high hardness, high melting point and good thermal stability. It is one of the most commonly used cutting tool coating materials. However, the oxidation resistance temperature of TiAlN coating is relatively low, about 800°C. During the cutting process, the interaction between the tool surface and the workpiece causes the temperature of the cutting zone to rise sharply. Especially when cutting some difficult-to-process materials, the temperature of the tool edge may reach more than 1000°C, exceeding the service temperature of the TiAlN coating.

[0003] The literature [Research on the structure, mechanical and high-temperature properties of Zr and Cr doped TiAlN coatings, Journal of Central South University 51 (2020) 3178] shows that adding Cr and Zr to TiAlN coatings can improve the mechanical properties and oxidation resistance of the coatings to a certain extent, but the hardness is not significantly improved.

[0004] The literature [Improved Ti-Al-N coatings through Ta alloying and multilayerarchitecture, Surface and Coatings Technology 385 (2020) 125444] shows that adding Ta element to TiAlN can significantly improve its antioxidant properties, but it promotes the formation of hexagonal phase in the coating, which in turn reduces the hardness of the coating. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a Ti with high hardness, high wear resistance, excellent high temperature oxidation resistance and adaptability to the cutting of difficult-to-process materials. u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0007] A Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating tool, comprising a tool substrate and Ti deposited on the tool substrate u Nb v Zr w Ta x X y Al z N multi-component nitride coating, wherein X is one element selected from Cr, Hf, W and Mo, 0.30≤z≤0.60, (1-z) / 5-0.02≤u≤(1-z) / 5+0.02, (1-z) / 5-0.02≤v≤(1-z) / 5+0.02, (1-z) / 5-0.02≤w≤(1-z) / 5+0.02, (1-z) / 5-0.02≤x≤(1-z) / 5+0.02 and (1-z) / 5-0.02≤y≤(1-z) / 5+0.02, and y=1-uvwxz.

[0008] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, preferably, 0.40≤z≤0.55, to ensure that the coating has a single-phase cubic structure.

[0009] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated cutting tools, preferably, (1-z) / 5-0.01≤u≤(1-z) / 5+0.01, (1-z) / 5-0.01≤v≤(1-z) / 5+0.01, (1-z) / 5-0.01≤w≤(1-z) / 5+0.01, (1-z) / 5-0.01≤x≤(1-z) / 5+0.01 and (1-z) / 5-0.01≤y≤(1-z) / 5+0.01, ensure that the compositions of the five elements Ti, Nb, Zr, Ta and X are close to the same molar ratio, thereby improving the thermal stability of the coating.

[0010] The above Ti u Nb v Zr wTa x X y Al z N multi-component nitride coated tool, preferably, the Ti u Nb v Zr w Ta x X y Al z The structure of the N multi-component nitride coating is a single-phase face-centered cubic structure.

[0011] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, preferably, the Ti u Nb v Zr w Ta x X y Al z The thickness of the N multi-component nitride coating is 1.0 μm to 7.0 μm.

[0012] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, more preferably, the Ti u Nb v Zr w Ta x X y Al z The thickness of the N multi-component nitride coating is 1.0 μm to 4.0 μm.

[0013] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, preferably, the tool substrate and the Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coatings are also provided with M 1-a Al a N transition layer, M is one element selected from Ti, Nb, Zr, Ta, Cr and Hf, 0≤a≤0.70. More preferably, M1-a Al a M in the N transition layer is Ti or Cr.

[0014] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, preferably, the M 1-a Al a The crystal structure of the N transition layer is a single-phase face-centered cubic structure.

[0015] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, preferably, the M 1-a Al a The thickness of the N transition layer is 0.2 μm to 4.0 μm.

[0016] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, preferably, the total coating thickness of the tool is 2.0 μm to 10.0 μm.

[0017] The above Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, more preferably, the total coating thickness of the tool is 3.0 μm to 8.0 μm.

[0018] In the present invention, Ti u Nb v Zr w Ta x X y Al z The composition of the N layer is controlled to be 0.30≤z≤0.60, preferably 0.40≤z≤0.55, which can ensure that Ti u Nb v Zr w Ta x X y Al zThe N layer is a single-phase cubic structure. The structure and mechanical properties of the Al-containing nitride coating are closely related to the Al content. As the Al content increases, the coating will change from a single-phase cubic structure to a two-phase structure of cubic and hexagonal or even a single-phase hexagonal structure. While ensuring the cubic structure of the coating, the hardness and oxidation resistance of the coating will increase with the increase of the Al content; once the Al content increases to the point where a hexagonal phase appears, the performance of the coating will drop sharply. Therefore, in the present invention, if the Al content in the coating is too low, the performance of the coating cannot be optimized, and if the Al content is too high, a hexagonal phase will appear in the coating, and the performance of the coating will drop significantly.

[0019] In the present invention, Ti u Nb v Zr w Ta x X y Al z The composition of the N layer is controlled to be (1-z) / 5-0.02≤u≤(1-z) / 5+0.02, (1-z) / 5-0.02≤v≤(1-z) / 5+0.02, (1-z) / 5-0.02≤w≤(1-z) / 5+0.02, (1-z) / 5-0.02≤x≤(1-z) / 5+0.02 and (1-z) / 5-0.02≤y≤(1-z) / 5+0.02 with y=1-uvwxz, ensuring that the compositions of the five elements Ti, Nb, Zr, Ta and X are close to the equimolar ratio, inhibiting the thermal diffusion of the coating at high temperature, thereby improving the thermal stability of the coating.

[0020] In the present invention, the total thickness of the tool coating is 2.0 μm to 10.0 μm. If the coating is too thin, it will affect the protective performance and protective effect of the coating, but if it is too thick, it will not only produce excessive stress, causing the coating to peel off easily, but also increase the cost.

[0021] In various technical solutions of the present invention, the tool substrate can be various cutting tools known in the art, and is particularly suitable for cemented carbide tools, metal ceramic tools, superhard tools and high-speed steel tools.

[0022] Ti of the present invention u Nb v Zr w Ta x X y Al z The N multi-component nitride coated tool can be prepared by the following preparation method, including the following steps:

[0023] (1) Pre-treating the tool substrate;

[0024] (2) Deposit M on the pretreated tool substrate 1-a Al aN layer transition layer, then deposit Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating; wherein X is one of Cr, Hf, W and Mo, and M is one of Ti, Nb, Zr, Ta, Cr and Hf. The preparation method of the multi-layer coating tool of the present invention has the characteristics of simple process, low equipment requirements and low production cost. The coating tool prepared by the method can meet the requirements of high-speed cutting and greatly prolong the service life of the cutting tool.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coatings utilize the solid solution strengthening effect caused by multiple elements occupying the metal sites in the cubic nitride coatings, which can greatly improve the hardness of the coatings. u Nb v Zr w Ta x X y Al z The diffusion of Al element in N multi-component nitride coating at high temperature will cause the coating to form hexagonal AlN and reduce the hardness of the coating. The present invention uses the nearly equal atomic ratio of Ti, Nb, Zr, Ta and X elements and arranges the atoms of the contained elements in a disordered manner to increase the mixing entropy of the coating, thereby inhibiting the high-temperature thermal diffusion of the coating components and improving the thermal stability of the coating. u Nb v Zr w Ta x X y Al z N multi-component nitride coating can inhibit the phase transformation during the oxidation process of Ti element and improve the anti-oxidation performance of the coating. It can also improve the thermal stability of the coating and reduce the friction coefficient of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Ti of Examples 1, 2, 4-10 of the present invention u Nb v Zr w Ta x X y Al z Schematic diagram of the structure of a multi-component nitride coated tool.

[0028] Figure 2 Ti of Example 3 of the present invention u Nb v Zr w Ta x X y Al z Schematic diagram of the structure of a multi-component nitride coated tool.

[0029] Figure 3 The Ti in the test of Example 1 of the present invention 0.40 Al 0.60 N coating and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Cr 0.10 Al 0.50 XRD patterns of N coating.

[0030] Legend:

[0031] 1. Tool base; 2. M 1-a Al a N transition layer; 3. Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby. The materials and instruments used in the following embodiments are all commercially available.

[0033] Example 1

[0034] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, the tool substrate 1 and the Ti deposited on the tool substrate 1 u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, Ti u Nb v Zr w Ta x Xy Al z N multi-component nitride coating 3 is Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Cr 0.10 Al 0.50 N coating is a single-phase face-centered cubic structure with a thickness of 2.5μm.

[0035] In this embodiment, the tool base 1 and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is also provided with M 1-a Al a N transition layer 2, M 1-a Al a N transition layer 2 is Ti 0.40 Al 0.60 N coating is a single-phase face-centered cubic structure with a thickness of 1.5μm.

[0036] In this embodiment, the tool base 1 adopts a CNMG120408 carbide blade.

[0037] A Ti of the above embodiment u Nb v Zr w Ta x X y Al z The preparation method of a multi-component nitride coated tool comprises the following steps:

[0038] (1) performing surface cleaning, Ar etching and other pretreatment on a CNMG120408 cemented carbide insert to obtain a tool substrate 1;

[0039] (2) A TiAl target is used to deposit a Ti layer with a thickness of 1.5 μm on the tool substrate 1 using a physical vapor deposition (PVD) method. 0.40 Al 0.60 N transition layer, the deposition atmosphere is a mixture of N2 and Ar or N2; then TiNbZrTaCrAl target material is used to deposit a Ti with a thickness of 2.5 μm 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Cr 0.10 Al 0.50 N layer, the deposition atmosphere is a mixture of N2 and Ar or N2. Unless otherwise specified, the preparation methods of the following other embodiments are the same as those of this embodiment.

[0040] In this embodiment, in order to verify Ti 0.40 Al 0.60 N transition layer and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Cr 0.10 Al 0.50 The crystal structure of the N multi-component nitride layer is deposited separately with a thickness of 4.0 μm. 0.40 Al 0.60 N coating and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Cr 0.10 Al 0.50 N coating, used for XRD analysis. Figure 3 As shown, XRD test results show that Ti 0.40 Al 0.60 N coating and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Cr 0.10 Al 0.50 N coatings all have a single-phase face-centered cubic structure.

[0041] Control experiment: The tool substrate 1 of the control product is the same as that of Example 1, and ordinary Ti is deposited by ordinary physical vapor deposition method. 0.50 Al 0.50 N coating (single coating structure, thickness of 4.0 μm), the hard alloy coating blade currently used in the market is prepared, and the comparison of other embodiments is Ti 0.50 Al 0.50 The composition and thickness of the N coating are the same as those in Example 1, and both are common commercial coatings.

[0042] The Ti prepared in this example u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool A and the reference product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 1 below.

[0043] Table 1 Comparative experimental results of multi-component nitride coating tool A of Example 1 and the control product

[0044]

[0045]

[0046] As can be seen from Table 1, under the same tool substrate, cutting conditions and total coating thickness, the cutting performance of the coated tool in Example 1 is better than that of the Ti 0.50 Al 0.50 N coating.

[0047] Example 2

[0048] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer 2 and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, Ti u Nb v Zr w Ta x X y Al z N multi-component nitride layer is Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Hf 0.10 Al 0.50 N coating, single-phase face-centered cubic structure, thickness is 2.5μm. 1-a Al a N transition layer is Cr 0.30 Al 0.70 N coating is a single-phase face-centered cubic structure with a thickness of 1.5μm.

[0049] In this embodiment, XRD detection (omitted for illustration, the same description is given for other embodiments) Cr 0.30 Al 0.70 N transition layer and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Hf 0.10 Al 0.50 N coatings all have a single-phase face-centered cubic structure.

[0050] The multi-component nitride coated tool B prepared in this embodiment and the reference product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 2 below.

[0051] Table 2 Comparative experimental results of multi-component nitride coating tool B of Example 2 and the control product

[0052]

[0053] It can be seen from Table 2 that under the same tool substrate, cutting conditions and total coating thickness, the Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Hf 0.10 Al 0.50 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0054] Example 3

[0055] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 2 As shown, it includes a tool substrate 1 and Ti deposited on the tool substrate 1 u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Hf 0.10 Al 0.50 N coating, with a thickness of 4.0 μm, has a single-phase face-centered cubic structure.

[0056] In this embodiment, XRD detection shows that Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Hf 0.10 Al0.50 The N coating has a single-phase face-centered cubic structure.

[0057] The multi-component nitride coated tool C prepared in this embodiment and the reference product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 3 below.

[0058] Table 3 Comparative experimental results of multi-component nitride coated tool C of Example 3 and the control product

[0059]

[0060] It can be seen from Table 3 that under the same tool substrate, cutting conditions and total coating thickness, the Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Hf 0.10 Al 0.50 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating. Compared with Example 2, this embodiment does not have Cr 0.30 Al 0.70 N transition layer, its performance is degraded.

[0061] Example 4

[0062] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer 2 and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 W 0.10 Al 0.50N coating, single-phase face-centered cubic structure, thickness 4.0μm, M 1-a Al a N transition layer is Ti 0.50 Al 0.50 N coating is a single-phase face-centered cubic structure with a thickness of 4.0 μm.

[0063] In this embodiment, XRD detection shows that Ti 0.50 Al 0.50 N transition layer and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 W 0.10 Al 0.50 N coatings all have a single-phase face-centered cubic structure.

[0064] The multi-component nitride coated tool D prepared in this embodiment and the reference product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 4 below.

[0065] Table 4 Comparative experimental results of multi-component nitride coated tool D of Example 4 and the control product

[0066]

[0067] It can be seen from Table 4 that under the same tool base and cutting conditions, the Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 W 0.10 Al 0.50 The cutting performance of the N-coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0068] Example 5

[0069] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer 2 and Ti u Nb v Zr w Ta x X y Al zN multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Mo 0.10 Al 0.50 N coating, single-phase face-centered cubic structure, thickness 7.0μm, M 1-a Al a N transition layer is Nb 0.60 Al 0.40 N coating is a single-phase face-centered cubic structure with a thickness of 3.0 μm.

[0070] In this embodiment, XRD detection shows that Nb 0.60 Al 0.40 N transition layer and Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Mo 0.10 Al 0.50 N coatings all have a single-phase face-centered cubic structure.

[0071] The Ti prepared in this example 0.10 Nb 0.10 Zr 0.10 Ta 0.10 Mo 0.10 Al 0.50 N multi-component nitride coated tool E and the reference product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 5 below.

[0072] Table 5 Comparative experimental results of multi-component nitride coated tool E of Example 5 and the control product

[0073]

[0074] It can be seen from Table 5 that under the same tool base and cutting conditions, the Ti 0.10 Nb 0.10 Zr 0.10 Ta 0.1 0Mo 0.10 Al 0.50 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0075] Example 6

[0076] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer 2 and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.12 Nb 0.14 Zr 0.11 Ta 0.12 Hf 0.11 Al 0.40 N coating, thickness 1.8μm, single-phase face-centered cubic structure, M 1-a Al a N transition layer is Ta 0.70 Al 0.30 N coating, with a thickness of 0.20 μm, has a single-phase face-centered cubic structure.

[0077] In this embodiment, XRD detection shows that Ta 0.70 Al 0.30 N transition layer and Ti 0.12 Nb 0.11 Zr 0.08 Ta 0.10 Hf 0.09 Al 0.40 N coatings all have a single-phase face-centered cubic structure.

[0078] The Ti prepared in this example 0.12 Nb 0.14 Zr 0.11 Ta 0.12 Hf 0.11 Al 0.40 N multi-component nitride coated tool F and the reference product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 6 below.

[0079] Table 6 Comparative experimental results of multi-component nitride coating tool F of Example 6 and the control product

[0080]

[0081] It can be seen from Table 6 that under the same tool base and cutting conditions, the Ti 0.12 Nb 0.14 Zr 0.11 Ta 0.12 Hf 0.11 Al 0.40 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0082] Example 7

[0083] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.12 Nb 0.15 Zr 0.16 Ta 0.14 Hf 0.13 Al 0.30 N coating, thickness 3.0μm, single-phase face-centered cubic structure, M 1-a Al a The N transition layer is a HfN coating with a thickness of 1.0 μm and a single-phase face-centered cubic structure.

[0084] In this embodiment, XRD test results show that the HfN transition layer and Ti 0.12 Nb 0.15 Zr 0.16 Ta 0.14 Hf0.13 Al 0.30 N coatings all have a single-phase face-centered cubic structure.

[0085] The Ti prepared in this example 0.12 Nb 0.15 Zr 0.16 Ta 0.14 Hf 0.13 Al 0.30 N multi-component nitride coated tool G and the control product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 7 below.

[0086] Table 7 Comparative experimental results of multi-component nitride coating tool G of Example 7 and the control product

[0087]

[0088] It can be seen from Table 7 that under the same tool base and cutting conditions, the Ti 0.12 Nb 0.14 Zr 0.11 Ta 0.12 Hf 0.11 Al 0.40 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0089] Example 8

[0090] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.11 Nb 0.10 Zr 0.09Ta 0.10 Mo 0.10 Al 0.50 N coating, thickness 1.5μm, single-phase face-centered cubic structure, M 1-a Al a N transition layer 2 is Nb 0.80 Al 0.20 N coating, with a thickness of 2.0 μm, has a single-phase face-centered cubic structure.

[0091] In this embodiment, the XRD test results show that Nb 0.80 Al 0.20 N transition layer and Ti 0.11 Nb 0.10 Zr 0.09 Ta 0.10 Mo 0.10 Al 0.50 N coatings all have a single-phase face-centered cubic structure.

[0092] The Ti prepared in this example 0.11 Nb 0.10 Zr 0.09 Ta 0.10 Mo 0.10 Al 0.50 N multi-component nitride coated tool H and the control product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 8 below.

[0093] Table 8 Comparative experimental results of multi-component nitride coated tool H of Example 8 and the control product

[0094]

[0095] It can be seen from Table 8 that under the same tool base and cutting conditions, the Ti 0.13 Nb 0.10 Zr 0.10 Ta 0.10 Mo 0.12 Al 0.55 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0096] Example 9

[0097] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer 2 and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.06 Nb 0.09 Zr 0.09 Ta 0.10 W 0.06 Al 0.6 0N coating, thickness is 3.0μm, single-phase face-centered cubic structure, M 1-a Al a N transition layer 2 is Zr 0.72 Al 0.38 N coating, with a thickness of 3.0 μm, has a single-phase face-centered cubic structure.

[0098] In this embodiment, XRD detection shows that Zr 0.72 Al 0.38 N transition layer and Ti 0.06 Nb 0.09 Zr 0.09 Ta 0.10 W 0.06 Al 0.60 N coatings all have a single-phase face-centered cubic structure.

[0099] The Ti prepared in this example 0.06 Nb 0.09 Zr 0.09 Ta 0.10 W 0.06 Al 0.60 N multi-component nitride coated tool I and the control product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 9 below.

[0100] Table 9: Comparative experimental results of multi-component nitride coated tool I of Example 9 and the control

[0101]

[0102] It can be seen from Table 9 that under the same tool base and cutting conditions, the Ti 0.13 Nb 0.10Zr 0.10 Ta 0.10 Mo 0.12 Al 0.55 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0103] Example 10

[0104] A Ti of the present invention u Nb v Zr w Ta x X y Al z N multi-component nitride coated tools, such as Figure 1 As shown, it includes a tool base 1 and M deposited on the tool base 1 from bottom to top. 1-a Al a N transition layer and Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3, wherein Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coating 3 is Ti 0.10 Nb 0.08 Zr 0.09 Ta 0.11 W 0.07 Al 0.55 N coating, thickness 4.0μm, single-phase face-centered cubic structure, M 1-a Al a The N transition layer is a TaN coating with a thickness of 1.0 μm and a single-phase face-centered cubic structure.

[0105] In this embodiment, XRD detection shows that the TaN transition layer and Ti 0.10 Nb 0.08 Zr 0.09 Ta 0.11 W 0.07 Al 0.55 N coatings all have a single-phase face-centered cubic structure.

[0106] The Ti prepared in this example 0.10 Nb 0.08 Zr 0.09 Ta 0.11 W 0.07 Al 0.55N multi-component nitride coated tool J and the control product were subjected to a comparative experiment of continuous turning of stainless steel (1Cr18Ni9Ti). The comparative experimental results are shown in Table 10 below.

[0107] Table 10 Comparative experimental results of multi-component nitride coating tool J of Example 10 and the control product

[0108]

[0109] It can be seen from Table 10 that under the same tool base and cutting conditions, the Ti 0.10 Nb 0.08 Zr 0.0 9Ta 0.11 W 0.07 Al 0.55 The cutting performance of the N multi-component nitride coated tool is better than that of the control Ti 0.50 Al 0.50 N coating.

[0110] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention, still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The invention comprises a tool substrate and a Ti layer deposited on the tool substrate. u Nb v Zr w Ta x X y Al z N multi-component nitride coating, wherein X is one element selected from Cr, Hf, W and Mo, 0.30≤z≤0.60, (1-z) / 5-0.02≤u≤(1-z) / 5+0.02, (1-z) / 5-0.02≤v≤(1-z) / 5+0.02, (1-z) / 5-0.02≤w≤(1-z) / 5+0.02, (1-z) / 5-0.02≤x≤(1-z) / 5+0.02 and (1-z) / 5-0.02≤y≤(1-z) / 5+0.02, and y=1-uvwxz.

2. Ti according to claim 1 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: 0.40≤z≤0.55。 3. Ti according to claim 1 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: (1-z) / 5-0.01≤u≤(1-z) / 5+0.01, (1-z) / 5-0.01≤v≤(1-z) / 5+0.01, (1-z) / 5-0.01≤w ≤(1-z) / 5+0.01, (1-z) / 5-0.01≤x≤(1-z) / 5+0.01 and (1-z) / 5-0.01≤y≤(1-z) / 5+0.

01.

4. Ti according to claim 1 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The Ti u Nb v Zr w Ta x X y Al z The structure of the N multi-component nitride coating is a single-phase face-centered cubic structure.

5. Ti according to claim 1 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The Ti u Nb v Zr w Ta x X y Al z The thickness of the N multi-component nitride coating is 1.0 μm to 7.0 μm.

6. Ti according to claim 3 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The Ti u Nb v Zr w Ta x X y Al z The thickness of the N multi-component nitride coating is 1.0 μm to 4.0 μm.

7. Ti according to any one of claims 1 to 6 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The tool substrate and the Ti u Nb v Zr w Ta x X y Al z N multi-component nitride coatings are also provided with M 1-a Al a N transition layer, M is an element selected from Ti, Nb, Zr, Ta, Cr and Hf, 0≤a≤0.

70.

8. Ti according to claim 7 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The M 1-a Al a The crystal structure of the N transition layer is a single-phase face-centered cubic structure.

9. Ti according to claim 7 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The M 1-a Al a The thickness of the N transition layer is 0.2 μm to 4.0 μm.

10. Ti according to claim 8 or 9 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The total coating thickness of the tool is 2.0 μm to 10.0 μm.

11. Ti according to claim 10 u Nb v Zr w Ta x X y Al z N multi-component nitride coated tool, characterized in that: The total coating thickness of the tool is 3.0 μm to 8.0 μm.

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