CN114289745B - Cutting tool - Google Patents
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- CN114289745B CN114289745B CN202111648314.9A CN202111648314A CN114289745B CN 114289745 B CN114289745 B CN 114289745B CN 202111648314 A CN202111648314 A CN 202111648314A CN 114289745 B CN114289745 B CN 114289745B
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- 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
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Abstract
The invention relates to the technical field of hard alloy cutting tools, in particular to a cutting tool. The present invention provides a cutting tool comprising: a substrate and a coating layer composited on the substrate; the coating comprises at least one layer of a-alpha-l having the following texture coefficients 2 O 3 Alpha-alpha l of grain composition 2 O 3 A coating; the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 3; TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 1; the texture coefficient TC (hkl) is defined as shown in formula (1). The coating of the cutting tool provided by the invention has the preferred orientation of the (122) crystal face, the toughness of the cutting tool in cutting is obviously improved, the impact resistance and the wear resistance are excellent, and the coating can be applied to cast iron cutting.
Description
Technical Field
The invention relates to the technical field of hard alloy cutting tools, in particular to a cutting tool.
Background
CVD coated cemented carbide cutting tools have been in use in industry for many years, such as inner TiCN and outer α -ai 2 O 3 Is the major CVD ceramic coating layer at present. Especially external alpha-alpha l 2 O 3 The ceramic phase is the main part for improving the high-temperature red hardness performance of the cutting tool, wherein the texture is better to promote alpha-alpha l 2 O 3 Has an important pathway of alpha-alpha l 2 O 3 Alpha-alpha l with no preferred orientation of wear resistance and crater wear resistance of cutting tool with preferred coating 2 O is obviously improved. Currently, alpha-ai with preferential orientation has been disclosed 2 O 3 There are many commercial patents for coated cutting tools, such as: chinese patent CN1611313 a discloses a (012) textured alumina layer, but a cutting tool having a (012) textured alumina layer has a problem of insufficient toughness and impact resistance at the time of cast iron cutting.
Disclosure of Invention
In view of the above, the present invention aims to provide a cutting tool with a new structure, which has better toughness and impact resistance.
The present invention provides a cutting tool comprising: a substrate and a coating layer composited on the substrate;
the coating comprises at least one layer of a-alpha-l having the following texture coefficients 2 O 3 Alpha-alpha l of grain composition 2 O 3 A coating;
the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 3;
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 1;
the texture coefficient TC (hkl) is defined as shown in formula (1):
in the formula (1), the components are as follows,
i (hkl) is the measured intensity of (hkl) diffraction;
I 0 (hkl) is the standard intensity of PDF cards 46-1212 according to ICDD;
n is the number of diffractions used in the calculation;
the (hkl) reflections used in the calculations are (012), (104), (110), (113), (024), (116), (122), (214), and (300).
Preferably, the method comprises the steps of,
the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 7;
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 0.5.
Preferably, the α -al 2 O 3 The thickness of the coating is 1-20 mu m.
Preferably, the matrix comprises the following components:
Co 6wt％～7wt％；
0.8 to 1.2 weight percent of first carbide;
the balance of the second carbide;
the first carbide comprises TiC, taC, nbC and Cr 3 C 2 At least one of (a) and (b);
the second carbide is WC.
Preferably, the coating layer includes:
a TiN coating deposited on the substrate;
a TiCN coating deposited on the TiN coating;
a transition layer deposited on the TiCN coating;
alpha-al deposited on the transition layer 2 O 3 A coating;
the transition layer comprises (Ti x Al y ) CNO coating, wherein x+y=1, and 0.9.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.0.1.
Preferably, the transition layer further comprises a metal deposited on the (Ti x Al y ) Ti on CNO coating 2 O 3 A layer.
Preferably, ti is deposited 2 O 3 The gas raw material adopted by the layer comprises 0.5-1% TiCl by volume percent 4 1 to 4 percent of CO 2 And the balance H 2 ；
Deposition of Ti 2 O 3 The temperature of the layer is 970-1015 ℃, and the pressure is 30-60 mbar.
Preferably, the thickness of the TiN coating is 1-3 mu m;
the thickness of the TiCN coating is 3-12 mu m;
the thickness of the transition layer is 0.8-20 mu m;
the alpha-alpha l 2 O 3 The thickness of the coating is 1-20 mu m.
Preferably, the (Ti x Al y ) The gas raw material adopted by the CNO coating comprises 1-3% of TiCl by volume percent 4 15-30% of N 2 1 to 8 percent of CH 4 1 to 2.0 percent of CO and 0 to 2.5 percent of A lCl 3 H at the rest 2 ；
Depositing said (Ti x Al y ) The temperature of the CNO coating is 970-1015 ℃, and the pressure is 70-130 mbar.
Preferably, the alpha-al is deposited 2 O 3 The gas raw material adopted by the coating comprises 2.1-4% of CO and 2-4% of CO by volume percent 2 2-3% of A lCl 3 1.0 to 2.5 percent of HCl, 0.3 to 0.6 percent of H 2 S and the balance H 2 The ratio of CO to HCl is greater than 1 and less than 2;
depositing the alpha-alpha l 2 O 3 The temperature of the coating is 970-1015 ℃, and the pressure is 30-90 mbar.
The present invention provides a cutting tool comprising: a substrate and a coating layer composited on the substrate;
the coating comprises at least one layer of a-alpha-l having the following texture coefficients 2 O 3 Alpha-alpha l of grain composition 2 O 3 A coating;
the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 3;
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 1;
the texture coefficient TC (hkl) is defined as shown in formula (1):
in the formula (1), the components are as follows,
i (hkl) is the measured intensity of (hkl) diffraction;
I 0 (hkl) is the standard intensity of PDF cards 46-1212 according to ICDD;
n is the number of diffractions used in the calculation;
the (hkl) reflections used in the calculations are (012), (104), (110), (113), (024), (116), (122), (214), and (300).
The coating of the cutting tool provided by the invention has the preferred orientation of the (122) crystal face, so that the toughness of the cutting tool in cutting is obviously improved, the shock resistance is better, and meanwhile, the wear resistance of the cutting tool is also better, the coating can be applied to cast iron cutting, and the coating has obvious technical advantages in cast iron cutting, especially strong intermittent cutting.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention provides a cutting tool comprising: a substrate and a coating layer composited on the substrate;
the coating comprises at least one layer of a-alpha-l having the following texture coefficients 2 O 3 Alpha-alpha l of grain composition 2 O 3 A coating;
the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 3;
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 1;
the texture coefficient TC (hkl) is defined as shown in formula (1):
in the formula (1), the components are as follows,
i (hkl) is the measured intensity of (hkl) diffraction;
I 0 (hkl) is the standard intensity of PDF cards 46-1212 according to ICDD;
n is the number of diffractions used in the calculation;
the (hkl) reflections used in the calculations are (012), (104), (110), (113), (024), (116), (122), (214), and (300).
In certain embodiments of the invention, the matrix comprises the following components:
Co 6wt％～7wt％；
0.8 to 1.2 weight percent of first carbide;
the balance of the second carbide;
the first carbide comprises TiC, taC, nbC and Cr 3 C 2 At least one of (a) and (b);
the second carbide is WC.
In certain embodiments, the substrate is a cemented carbide insert of model cnmΑ120408, comprising in particular the following components:
in certain embodiments of the invention, the α - Αl 2 O 3 The grains are columnar grains, defining: measuring alpha-alpha l of single crystal grain along direction parallel to columnar crystal growth direction 2 O 3 Length L, measure alpha-alpha L 2 O 3 The widest length of the crystal grain perpendicular to the growth direction of the columnar crystal is marked as D; the aspect ratio L/D of the crystal grains is 2-15: 1.
in certain embodiments of the invention, the α - Αl 2 O 3 In the coating, TC (122) is more than or equal to 7.
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 0.5.
At the bookIn certain embodiments of the invention, the α -al 2 O 3 In the coating, TC (122) is 7.2, 7.3, 7.4, 6.2, 5.1, 5.6, 4.5, 3.5, or 3.1.
In certain embodiments of the invention, the α - Αl 2 O 3 The thickness of the coating is 1-20 mu m.
In certain embodiments of the invention, the coating is prepared by chemical vapor deposition.
In certain embodiments of the invention, the α -al is deposited 2 O 3 The gas raw material adopted by the coating comprises CO and HCl, and the volume ratio of the CO to the HCl is more than 1 and less than 2.
In certain embodiments of the invention, alpha-alpha l is deposited 2 O 3 The gas raw material adopted by the coating comprises 2.1-4% of CO and 2-4% of CO by volume percent 2 2-3% of A lCl 3 1.0 to 2.5 percent of HCl, 0.3 to 0.6 percent of H 2 S and the balance H 2 。
In certain embodiments of the invention, alpha-alpha l is deposited 2 O 3 The temperature of the coating is 970-1015 ℃, and the pressure is 30-90 mbar.
In certain embodiments of the invention, the coating comprises:
a TiN coating deposited on the substrate;
a TiCN coating deposited on the TiN coating;
a transition layer deposited on the TiCN coating;
alpha-al deposited on the transition layer 2 O 3 And (3) coating.
In certain embodiments of the present invention, the transition layer comprises (Ti x Al y ) CNO coating, wherein x+y=1, and 0.9.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.0.1.
In certain embodiments, the x=0.93, y=0.07, the x=0.95, y=0.05, or the x=0.9, y=0.1.
In certain embodiments of the present invention, the transition layer comprises:
deposited on the TiCN coating (Ti x Al y ) A CNO coating; wherein x+y=1, and x is more than or equal to 0.9 and less than or equal to 1, and y is more than or equal to 0 and less than or equal to 0.1;
deposited on the (Ti x Al y ) Ti on CNO coating 2 O 3 A layer.
In certain embodiments of the invention, the TiN coating has a thickness of 1 to 3 μm.
In certain embodiments of the invention, the TiCN coating has a thickness of 3-12 μm.
In certain embodiments of the invention, the transition layer has a thickness of 0.8 to 20 μm.
In certain embodiments of the invention, the α - Αl 2 O 3 The thickness of the coating is 1-20 mu m.
In certain embodiments of the present invention, the gaseous feed used to deposit the TiN coating comprises, by volume percent, 1.0% to 2.5% TiCl 4 20 to 50 percent of N 2 And the balance H 2 The method comprises the steps of carrying out a first treatment on the surface of the In certain embodiments, the gaseous feed used to deposit the TiN coating comprises 1.7% TiCl by volume percent 4 39% N 2 And the balance H 2 。
In certain embodiments of the invention, the TiN coating is deposited at a temperature of 850-930℃and a pressure of 100-200 mbar. In certain embodiments, the TiN coating is deposited at a temperature of 875-885 ℃, at a pressure of 155-165 mbar, and for a time of 95-105 minutes.
In certain embodiments of the present invention, the gaseous feedstock used to deposit the TiCN coating comprises 1.0% to 2.5% TiCl by volume 4 30-50% of N 2 0.8 to 3.5 percent of CH 3 CN and the balance H 2 . In certain embodiments, the gas used to deposit the TiCN coating comprises 2% TiCl by volume percent 4 39% N 2 0.8% CH 3 CN and the balance H 2 。
In certain embodiments of the invention, the TiCN coating is deposited at a temperature of 800-890℃and a pressure of 70-150 mbar. In certain embodiments of the invention, the TiCN coating is deposited at a temperature of 845-855 ℃, a pressure of 85-95 mbar, and a time of 415-425 minutes.
In certain embodiments of the invention, the deposition (Ti x Al y ) The gas raw material adopted by the CNO coating comprises 1-3% of TiCl by volume percent 4 15-30% of N 2 1 to 8 percent of CH 4 1 to 2.0 percent of CO and 0 to 2.5 percent of A lCl 3 H at the rest 2 . In certain embodiments, the deposition (Ti x Al y ) The gaseous raw material used for CNO coating comprises 2.6% TiCl by volume percent 4 20% N 2 3% CH 4 1.5% CO and 1.2% A lCl 3 H at the rest 2 . In certain embodiments, the deposition (Ti x Al y ) The gaseous raw material used for CNO coating comprises 2.6% TiCl by volume percent 4 20% N 2 3% CH 4 1.9% CO and 1.0% A lCl 3 H at the rest 2 。
In certain embodiments of the invention, the deposition (Ti x Al y ) The temperature of the CNO coating is 970-1015 ℃, and the pressure is 70-130 mbar.
In certain embodiments of the invention, ti is deposited 2 O 3 The gas raw material adopted by the layer comprises 0.5-1% TiCl by volume percent 4 1 to 4 percent of CO 2 And the balance H 2 . In certain embodiments, ti is deposited 2 O 3 The layer uses a gaseous feed comprising 1% TiCl by volume 4 3% CO 2 And the balance H 2 。
In certain embodiments of the invention, ti is deposited 2 O 3 The temperature of the layer is 970-1015 ℃, the pressure is 30-60 mbar, and the time is 1-10 min.
In certain embodiments of the invention, alpha-alpha l is deposited 2 O 3 The gas raw material adopted by the coating comprises 2.1-4% of CO and 2-4% of CO by volume percent 2 2-3% of A lCl 3 1.0 to 2.5 percent of HCl, 0.3 to 0.6 percent of H 2 S and the balance H 2 . In certain embodiments, depositing alpha-ai 2 O 3 Coating layerThe adopted gas raw materials comprise 3 percent of CO and 3.5 percent of CO by volume percent 2 2.5% of A lCl 3 2.0% HCl, 0.4% H 2 S and the balance H 2 . In certain embodiments, depositing alpha-ai 2 O 3 The gas raw material adopted by the coating comprises 2.1 percent of CO and 3.5 percent of CO by volume percent 2 2.5% of A lCl 3 1.8% HCl, 0.4% H 2 S and the balance H 2 。
In certain embodiments of the invention, alpha-alpha l is deposited 2 O 3 The temperature of the coating is 970-1015 ℃, and the pressure is 30-90 mbar. In certain embodiments, depositing alpha-ai 2 O 3 The temperature of the coating is 995-1005 ℃, the pressure is 60-70 mbar, and the time is 515-525 min.
The invention is characterized in that the catalyst is prepared by depositing (Ti x Al y ) Higher deposition pressure is adopted in the process of CNO coating to promote the rapid growth of tissue structure towards specific orientation, and Ti is deposited 2 O 3 The low pressure condition is adopted in the coating process, so that the effect of refining the tissue structure can be achieved, and a sufficient nucleation site is provided for subsequent nucleation growth of alumina. In addition, during the growth of alumina, CO and HCl are used as CO respectively 2 And A lCl 3 Is a reaction inhibitor for controlling A/L 2 O 3 In the invention, the use amount of oxygen source inhibitor CO is always maintained to be larger than that of aluminum source inhibitor HCl in the alumina growth process, and the highest use amount is not more than 2 times that of the alpha source inhibitor, namely: the volume ratio of CO to HCl is greater than 1 and less than 2.
The source of the raw materials used in the present invention is not particularly limited, and may be generally commercially available.
In order to further illustrate the present invention, a cutting tool according to the present invention will be described in detail with reference to examples, which should not be construed as limiting the scope of the present invention.
The sources of the raw materials used in the examples are generally commercially available.
Example 1
Preparing a cutting tool A:
the matrix is a cemented carbide blade with the model number of CNMA 120408, and specifically comprises the following components:
1) Depositing a TiN coating on the substrate;
2) Depositing a TiCN coating on the TiN coating;
3) Depositing (Ti on the TiCN coating x Al y ) A CNO coating;
4) In the (Ti) x Al y ) Deposition of Ti on CNO coating 2 O 3 A layer;
5) At the Ti 2 O 3 Deposition of alpha-al on layers 2 O 3 And (3) coating.
The composition, content and deposition process parameters of the gas feed used in each step are shown in table 1.
TABLE 1 Components, content and deposition Process parameters of the gaseous feed employed in the steps of example 1
Example 2
Preparing a cutting tool B:
the matrix is a cemented carbide blade with the model number of CNMA 120408, and specifically comprises the following components:
1) Depositing a TiN coating on the substrate;
2) Depositing a TiCN coating on the TiN coating;
3) Depositing (Ti on the TiCN coating x Al y ) A CNO coating;
4) In the (Ti) x Al y ) Deposition of Ti on CNO coating 2 O 3 A layer;
5) At the Ti 2 O 3 Deposition of alpha-al on layers 2 O 3 And (3) coating.
The gas feed composition, content and process parameters for the deposition used in each step are shown in table 2.
TABLE 2 Components, content and deposition Process parameters of the gas feed employed in example 2 steps
Example 3
Preparing a cutting tool C:
the matrix is a cemented carbide blade with the model number of CNMA 120408, and specifically comprises the following components:
1) Depositing a TiN coating on the substrate;
2) Depositing a TiCN coating on the TiN coating;
3) Depositing (Ti on the TiCN coating x Al y ) A CNO coating;
4) In the (Ti) x Al y ) Deposition of alpha-alpha l on CNO coating 2 O 3 A layer.
The gas feed composition, content and process parameters for the deposition used in each step are shown in table 3.
TABLE 3 Components, contents and deposition Process parameters of the gaseous feed employed in the various steps of EXAMPLE 3
Comparative example 1
Preparing a cutting tool D:
the matrix is a cemented carbide blade with the model number of CNMA 120408, and specifically comprises the following components:
1) Depositing a TiN coating on the substrate;
2) Depositing a TiCN coating on the TiN coating;
3) Depositing (Ti on the TiCN coating x Al y ) A CNO coating;
4) In the (Ti) x Al y ) Deposition of Ti on CNO coating 2 O 3 A layer;
5) At the Ti 2 O 3 Deposition of alpha-al on layers 2 O 3 And (3) coating.
The gas feed composition, content and process parameters for the deposition used in each step are shown in table 4.
TABLE 4 Components, content and deposition Process parameters of the gas feed employed in comparative example 1
Using the cutting tools a, a1, a2, a3 obtained in example 1, three random samples were taken from the same coating heat;
three random samples from the same coating pass were taken using cutting tools B, B1, B2, B3 obtained in example 2;
three random samples of the same coating heat were taken using the cutting tools C, C1, C2, C3 obtained in example 3;
three random samples were taken from the same coating heat using the cutting tools D, D1, D2, D3 obtained in comparative example 1;
XRD detection of coated alpha-l 2 O 3 The TC values are used to represent the preference of different crystal planes. The TC values were calculated according to the formula (1) using the X-ray diffraction patterns obtained at the time of measurement by CuK alpha radiation and 2 theta scanning, and the calculation results are shown in Table 5.
Table 5 TC values for a1, a2, a3, B1, B2, B3, C1, C2, C3, D1, D2, D3
| Blade | TC |
| Α1 | TC(122)＝7.2 |
| Α2 | TC(122)＝7.3 |
| Α3 | TC(122)＝7.4 |
| B1 | TC(122)＝6.2 |
| B2 | TC(122)＝5.1 |
| B3 | TC(122)＝5.6 |
| C1 | TC(122)＝4.5 |
| C2 | TC(122)＝3.5 |
| C3 | TC(122)＝3.1 |
| D1 | TC(122)＝0.6 |
| D2 | TC(122)＝0.8 |
| D3 | TC(122)＝0.9 |
Meanwhile, it is known through calculation that alpha-alpha l of A1, A2 and A3 2 O 3 TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214) and TC (300) of the rest characteristic peak positions are all smaller than 0.5; b1 Alpha-alpha l of B2, B3 2 O 3 TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214) and TC (300) of the rest characteristic peak positions are all smaller than 0.5; c1 Alpha-alpha l of C2, C3 2 O 3 TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214) and TC (300) of the rest characteristic peak positions are all smaller than 1; d1 Alpha-alpha l of D2, D3 2 O 3 The rest characteristic peak position is 3.5 < TC (012) < 4.5, 0.5 < TC (104) < 1.5, 0.5<TC(122)<1, and (012) peak position is strongest, and the rest of characteristic peak positions TC are smaller than 0.5.
The following cutting experiments were performed on the cutting tool a of example 1, the cutting tool B of example 2, the cutting tool C of example 3, and the cutting tool D of comparative example 1, and the abrasion resistance of the cutting tools was examined.
The following parameters were used for the cutting experiments:
work piece: HT250, cylinder; cutting speed is 300m/min; cut depth αp=2mm; the feed amount is 0.3mm/rev; the cooling mode is as follows: dry cutting;
tool life judgment standard: the rear cutter surface is used for measuring the abrasion exceeding 300 mu m or the cutter tip breakage; the measurement mode is as follows: measuring every 2min or making abnormal abrasion sound;
the experimental results are shown in table 6.
Table 6 results of wear resistance test of cutting tool
As can be seen from table 6, the abrasion resistance: a > B > C > D.
The following cutting experiments were performed on the cutting tool a of example 1, the cutting tool B of example 2, the cutting tool C of example 3, and the cutting tool D of comparative example 1, and the impact resistance of the cutting tools was examined.
The following parameters were used for the cutting experiments:
work piece: QT800, slotted cylinder; cutting speed is 180m/min; cut depth αp=1.5 mm; the feed amount is 0.2mm/rev; the cooling mode is as follows: wet cutting;
tool life judgment standard: the rear cutter surface is used for measuring the abrasion exceeding 300 mu m or the cutter tip breakage; the measurement mode is as follows: measuring every 30s or making abnormal abrasion sound by processing;
the experimental results are shown in table 7.
Table 7 results of impact resistance test of cutting tool
As can be seen from table 7, impact resistance: a > B > C > D, impact stability: a > C > B > D.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A cutting tool, comprising: a substrate and a coating layer composited on the substrate;
the coating comprises at least one layer of a-alpha-l having the following texture coefficients 2 O 3 Alpha-alpha l of grain composition 2 O 3 A coating;
the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 3;
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 1;
the texture coefficient TC (hkl) is defined as shown in formula (1):
in the formula (1), the components are as follows,
i (hkl) is the measured intensity of (hkl) diffraction;
I 0 (hkl) is the standard intensity of PDF cards 46-1212 according to ICDD;
n is the number of diffractions used in the calculation;
the (hkl) reflections used in the calculations are (012), (104), (110), (113), (024), (116), (122), (214), and (300).
2. The cutting tool according to claim 1, wherein,
the alpha-alpha l 2 O 3 In the coating, TC (122) is more than or equal to 7;
TC (012), TC (104), TC (110), TC (113), TC (024), TC (116), TC (214), TC (300) are all less than 0.5.
3. The cutting tool of claim 1, wherein the a-ai 2 O 3 The thickness of the coating is 1-20 mu m.
4. The cutting tool of claim 1, wherein the substrate comprises the following components:
Co 6wt％～7wt％；
0.8 to 1.2 weight percent of first carbide;
the balance of the second carbide;
the first carbide comprises TiC, taC, nbC and Cr 3 C 2 At least one of (a) and (b);
the second carbide is WC.
5. The cutting tool of claim 1, wherein the coating comprises:
a TiN coating deposited on the substrate;
a TiCN coating deposited on the TiN coating;
a transition layer deposited on the TiCN coating;
alpha-al deposited on the transition layer 2 O 3 A coating;
the transition layer comprises (Ti x Al y ) CNO coating, wherein x+y=1, and 0.9.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.0.1.
6. The cutting tool of claim 5, wherein the transition layer further comprises a metal deposited on the (Ti x Al y ) Ti on CNO coating 2 O 3 A layer.
7. The cutting tool of claim 6, wherein Ti is deposited 2 O 3 The gas raw material adopted by the layer comprises 0.5-1% TiCl by volume percent 4 1 to 4 percent of CO 2 And the balance H 2 ；
Deposition of Ti 2 O 3 The temperature of the layer is 970-1015 ℃, and the pressure is 30-60 mbar.
8. The cutting tool according to claim 5, wherein the TiN coating layer has a thickness of 1 to 3 μm;
the thickness of the TiCN coating is 3-12 mu m;
the thickness of the transition layer is 0.8-20 mu m;
the alpha-alpha l 2 O 3 The thickness of the coating is 1-20 mu m.
9. The cutting tool of claim 5, wherein the deposition of the(Ti x Al y ) The gas raw material adopted by the CNO coating comprises 1-3% of TiCl by volume percent 4 15-30% of N 2 1 to 8 percent of CH 4 1 to 2.0 percent of CO and 0 to 2.5 percent of A lCl 3 H at the rest 2 ；
Depositing said (Ti x Al y ) The temperature of the CNO coating is 970-1015 ℃, and the pressure is 70-130 mbar.
10. The cutting tool of claim 1, wherein the alpha-ai is deposited 2 O 3 The gas raw material adopted by the coating comprises 2.1-4% of CO and 2-4% of CO by volume percent 2 2-3% of A lCl 3 1.0 to 2.5 percent of HCl, 0.3 to 0.6 percent of H 2 S and the balance H 2 The ratio of CO to HCl is greater than 1 and less than 2;
depositing the alpha-alpha l 2 O 3 The temperature of the coating is 970-1015 ℃, and the pressure is 30-90 mbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111648314.9A CN114289745B (en) | 2021-12-29 | 2021-12-29 | Cutting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111648314.9A CN114289745B (en) | 2021-12-29 | 2021-12-29 | Cutting tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006205300A (en) * | 2005-01-27 | 2006-08-10 | Kyocera Corp | Surface-coated member and cutting tool |
| CN110100046A (en) * | 2017-01-26 | 2019-08-06 | 瓦尔特公开股份有限公司 | Coated cutting tool |
| CN113584459A (en) * | 2021-08-03 | 2021-11-02 | 赣州澳克泰工具技术有限公司 | Texture-enhanced kappa-Al2O3Coated tool and method of making same |
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| SE529051C2 (en) * | 2005-09-27 | 2007-04-17 | Seco Tools Ab | Cutting tool inserts coated with alumina |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006205300A (en) * | 2005-01-27 | 2006-08-10 | Kyocera Corp | Surface-coated member and cutting tool |
| CN110100046A (en) * | 2017-01-26 | 2019-08-06 | 瓦尔特公开股份有限公司 | Coated cutting tool |
| CN113584459A (en) * | 2021-08-03 | 2021-11-02 | 赣州澳克泰工具技术有限公司 | Texture-enhanced kappa-Al2O3Coated tool and method of making same |
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