CN110373638A - A kind of coated carbides cutting tip and preparation method thereof - Google Patents
A kind of coated carbides cutting tip and preparation method thereof Download PDFInfo
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- CN110373638A CN110373638A CN201910629869.5A CN201910629869A CN110373638A CN 110373638 A CN110373638 A CN 110373638A CN 201910629869 A CN201910629869 A CN 201910629869A CN 110373638 A CN110373638 A CN 110373638A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0021—Reactive sputtering or evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0641—Nitrides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
- C23C14/325—Electric arc evaporation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention discloses a kind of coated carbides cutting tips and preparation method thereof, and including the coating coated on matrix and matrix, matrix is made using cemented carbide material；Coating includes the super thick PVD coating of single-layer or multi-layer deposited using cathodic arc ion plating method, is Me1‑xAlxN coating, wherein Me is the one of or several of chemical element Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn and Si, and x=0.2~0.7, coating layer thickness is 5~10um, Me1‑xAlxIt is respectively σ that N coating, which is by stress value,1With σ2Coating alternately coating obtain, | σ2‑σ1| >=2Gpa, σ1With σ2Coat deposition time is between 30 seconds to 60 minutes, and alternately coating period >=2, coating hardness >=25Gpa, coating binding force are good.The present invention is prepared for the super thick PVD coating that hardness is high, binding force is excellent by coating stress distributed controll technology, so as to significantly improve the cutting ability service life of coated carbides cutting tip.
Description
Technical field
The present invention relates to a kind of coated cutting inserts, more particularly to a kind of coated carbides cutting tip and its production
Method.
Background technique
Physical vapour deposition (PVD) (PVD) is known film growth techniques, and PVD coating technology is to improve cutting performance and service life
Important channel, and have been widely used for cutting tool field.PVD coating can generate internal stress during the deposition process,
The internal stress Producing reason of coating is very complicated, but the root according to generation, and stress is divided into thermal stress and natural stress.It is right
It is mainly natural stress for PVD, is embodied in compression.It is most common at present for industrialization production cutting tool
PVD coating technology is arc ion plating and magnetron sputtering, is known in the art arc ion plating (aip) system according to technical characterstic
Standby coating has big coating stress, and the coating of magnetron sputtering technique preparation has lower stress.
For arc ion plating deposits PVD coating technology, it is characterized in that deposition is high, target utilization is high,
Film-substrate cohesion is good, coating is good around plating property, coating cutting ability is excellent, therefore most enterprises are prepared using this method
The cutting element of PVD coating.But the major limitation of arc ion plating deposition PVD coating technology is the limitation of coating layer thickness
Property.Because the PVD coating of arc ion plating deposition has very big internal stress, coating just can not after being coated to certain thickness
It is further continued for deposition up, uses coating layer thickness≤4.5um of the industrial product of arc ion plating at present.Magnetic control is splashed
It penetrates for technology, because the PVD coating of coating super thick, but its coating structure and coating compactness may be implemented in its lower internal stress
Etc. characteristic determine its in terms of coating cutting ability performance not as good as arc ion plating (aip).
7838132 B2 of United States Patent (USP) US discloses a kind of PVD coated cutting tool, and the coating includes at least one layer
Ti1-xA1xN coating, wherein x=0.4~0.6.It is deposited using arc ion plating (aip), coating film thickness is 1.5~5um, applies lamination
Stress is more than -6GPa, and high compression stress has been obviously improved the wear-resisting property and coating hardness of coating.
101960051 B of Chinese patent CN discloses a kind of coated cemented carbide endmill, and the coating includes that at least one layer of heat is steady
Fixed cubic structure (Ti1- (x+z) SixMez) N phase, using cathodic arc evaporation come depositing coating, the layer with a thickness of 0.5
~5um, coating stress are -6.0GPa < σ < -0.5GPa, which processes especially suitable for stainless steel and high temperature alloy.
As mentioned above, metal cutting industry is studying influence of the PVD coating internal stress to cutting ability, and is setting
Have in meter and research and development coating procedure and coating stress value is controlled.But disclosed technologies all so far rest on
Entirety control to the stress value of Bulk coat, can not prepare the super thick PVD coating that hardness is high, binding force is excellent, influence
The wearability of cutter.
Summary of the invention
It is an object of the invention to overcome the deficiency of the prior art, provides a kind of coated carbides cutting tip and its system
Make method, by control coating procedure in coating stress be distributed, obtain high thickness (5~10um), at the same have high rigidity and
The PVD coating of excellent binding force improves machining so as to significantly improve the wearability of coated carbides cutting tip
Cutter life.
The technical scheme adopted by the invention to solve the technical problem is that: a kind of coated carbides cutting tip, including
The coating coated on matrix and matrix, described matrix are made using cemented carbide material；The coating includes single layer or more
The super thick PVD coating of layer deposited using cathodic arc ion plating method is Me1-xAlxN coating, wherein Me is chemical element
Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn and Si's one of or several, x=0.2~0.7, coating layer thickness are 5~10um,
Me1-xAlxIt is respectively σ that N coating, which is by stress value,1With σ2Coating alternately coating obtain, | σ2-σ1| >=2Gpa, σ1With σ2Coating
Sedimentation time is between 30 seconds to 60 minutes, and alternately coating period >=2, coating hardness >=25Gpa, coating binding force are good.
Further have, the Me1-xAlxN coating, x=0.5~0.67, coating layer thickness are 6~8um.
The cemented carbide material be using WC as hard phase, using include at least one of Co, Ni, Fe metallic element as
Binder Phase, the Binder Phase content are 4~14wt.%, and solid solution has Cr element in the Binder Phase, and Cr element accounts for Binder Phase
Content is 1~10wt.%, and WC particle mean size is 0.4~3.5um in the hard alloy.
Further, the Binder Phase content is 6~10wt.%, and the content that Cr element accounts for Binder Phase is 4~8wt.%,
WC particle mean size is 0.8~2um in hard alloy.
The cemented carbide material be using the cubic carbide of WC and transition metal element as hard phase, with include Co, Ni,
The metallic element of at least one of Fe is 4~10wt.% as Binder Phase, the Binder Phase content, and the cubic carbide is
The carbide of the carbide of one of Ti, Ta and Nb element or several elements compoundings, content are 0.05~3wt.%, described hard
WC particle mean size is 0.4~3.5um in matter alloy.
Further, the Binder Phase content is 6~8wt.%, and the cubic carbide content is 0.1~2wt.%, institute
Stating WC particle mean size in hard alloy is 1~2.5um.
The Me1-xAlxN coating, be using cathodic arc ion plating method deposition under the premise of, by substrate bias,
The coordination of coating parameter of gas pressure, depositing temperature controls the stress of coating, stress value σ1With σ2Two kinds of coatings painting
Composition of layer is identical or not identical.
Further, stress value σ1With σ2The coating time periods of two kinds of coatings be identical or not identical.
The coating, in deposition Me1-xAlxBefore N coating, IV B selected from the periodic table of elements, V B are first deposited, in VI B
One kind or more metallic element or metallic element nitride, carbide or its mixture, sedimentation time 1
~30min, substrate bias are that -20V arrives -300V.
Further, sedimentation time is 5~20min, and substrate bias is that -40V arrives -250V.
The coating, in Me1-xAlxThe outermost layer coating that a layer thickness is 0.1~1um, outermost layer are also coated on N coating
The ingredient and Me of coating1-xAlxThe ingredient of N coating is not exactly the same, and outermost layer coating was cut as color layers or improvement
The lubricity in anti-stick bits or improvement cutting process in journey.
A kind of production method of coated carbides cutting tip is on matrix using in physical gas-phase deposite method
Cathodic arc ion plating method deposits ultra high build coating, and the ultra high build coating generates under the following conditions: gross pressure is 0.1~5.5Pa,
Vapor deposition electric current is 100~280A, and depositing temperature is 300~700 DEG C, and substrate bias is that -30V arrives -250V.
Further, the coating generates under the following conditions: gross pressure be 2.0~5.0Pa, vapor deposition electric current be 180~
240A, depositing temperature are 400~650 DEG C, and substrate bias is that -40V arrives -200V.
It further, further include after coating, surface smoothing processing, this kind machining packet being carried out by machining
One or more of include but be not limited to polishing and sandblasting.
A kind of purposes of coated carbides cutting tip is for the demanding turning of wearability and Milling Process.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is with Me1-xAlxN coating is main functional layer, and the stress distribution of coat inside is controlled by coating process,
Under the premise of using cathodic arc ion plating method, using the Me of two kinds of different stress values1-xAlxN coating carries out alternately coating,
Deposition obtains the coating that coating layer thickness is 5~10um, while the coating has high rigidity and excellent binding force, so as to substantially
Degree improves the cutting ability service life of coated carbides cutting tip.
Invention is further described in detail with reference to the accompanying drawings and embodiments；But a kind of coating hard of the invention closes
Golden cutting tip and preparation method thereof is not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the coated chip in the embodiment of the present invention.
Wherein, 1, matrix；2, coating；3, stress value σ1Coating；4, stress value σ2Coating.
Specific embodiment
A kind of coated carbides cutting tip shown in Figure 1, of the invention, including what is coated on matrix 1 and matrix 1
Coating 2, described matrix 1 are made using cemented carbide material；The coating 2 includes single-layer or multi-layer using cathode arc
The super thick PVD coating of ion plating method deposition, the coating 2 of the present embodiment are Me1-xAlxN coating, in Me1-xAlxDo not have on N coating
There is the outer layer of coating other compositions, wherein Me is the one of which of chemical element Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn and Si
Or several, x=0.2~0.7, preferably x=0.5~0.67, coating layer thickness are 5~10um, preferably 6~8um, Me1-xAlx N
It is respectively σ that coating, which is by stress value,1With σ2Coating alternately coating obtain, | σ2-σ1| >=2Gpa, σ1Coating 3 and σ2Coating 4 deposits
Time is between 30 seconds to 60 minutes, and alternately coating period >=2, coating hardness >=25Gpa, coating binding force are good.
Described matrix uses PM technique, to form the blank with geometry in particular, blank by suppressing, being sintered
Blade base is obtained after grinding and special cutting edge processing.
A kind of production method of coated carbides cutting tip of the invention, the coating 2 are heavy using physical vapor
Product method in cathodic arc ion plating method, gross pressure be 0.1~5.5Pa, preferably 2.0~5.0Pa, vapor deposition electric current be 100~
280A, preferably 180~240A, depositing temperature are 300~700 DEG C, and preferably 400~650 DEG C, substrate bias is that -30V arrives -250V,
It is preferred that -40V arrives -200V, under the above conditions depositing coating.
Specific coating treatment is as follows: it is clear that the blade base by pre-treatment first passes around further Ar or Kr plasma
It washes, further to promote coating adhesion.According to the surface characteristic of basic material, it can first be deposited on blade base and be selected from element
IV B of periodic table, V B, VI B, in one or more metallic elements or metallic element nitride, carbide, or
Its mixture, sedimentation time are 1~30min, preferably 5~20min, then redeposited with a thickness of 5~10um, preferably 6~8um's
Functional layer Me1-xAlxN layers.According to the surface characteristic of basic material, can also on blade base Direct precipitation functional layer
Me1-xAlxN layers, the present embodiment is the Direct precipitation functional layer Me on blade base 11-xAlxN coating 2.In addition, certainly also
One layer of outermost layer can be coated on a functional, improved the anti-stick bits in cutting process as color layers or improved and cut
Lubricity during cutting；The present embodiment does not coat one layer of outermost layer.
After coating, surface smoothing processing can also be carried out by machining, the chip removal of blade in machining is provided
Ability.
Blade after coating carries out energy by using with AmeTek Hitachi S-3700N scanning electron microscope (SEM)
Chromatic dispersion quantity is analyzed to estimate coating Me1-xAlxThe ingredient x of N；Nearby the coating section of the position 0.1~1mm is to measure to cutting edge
Position, film thickness are also to be determined by the position 0.1~1mm coating section near scanning electron microscope observation cutting edge；It adopts
With the nanohardness tester of the model HM1000 of FISCHER come the hardness of testing coating；It is applied using indentation method and scarification characterization
The binding force of layer.By Bruker D8Discovers X-ray diffraction equipment, using sin2 ψ method to the internal stress σ of coating into
Evaluation is gone.
Below in conjunction with specific example, the present invention is described in further detail.
Embodiment 1
A kind of coated carbides turning insert of the invention, blade model CNMG120408-EF, blade cutting edge use
Special passivation treatment technology, matrix be fine grained hard alloy, WC average grain diameter 1.0um, wherein Co mass percent be
6%, contain a small amount of Ta and Nb.The blade prepares PVD coating by cathodic arc ion plating method, using Ti0.33Al0.67Target,
In N2Under atmosphere, the Ti of 6um is deposited at a temperature of 600 DEG C0.33Al0.67N coating, alternately applying coating ingredient is identical, and only stress value is not
Together, wherein | σ2-σ1| about 2.5Gpa, final coating hardness are 27GPa, and coating binding force is good.
Compare blade: blade model and basic material are identical as the present invention, and use identical coating pretreatment mode, lead to
Cathodic arc ion plating method preparation PVD coating is crossed, the Ti with a thickness of 3um is prepared under identical sedimentary condition0.33Al0.67N is applied
Layer, coating stress do not control especially, are current commercial coat.
Above two blade carries out wear-resisting turning test under such as the following conditions, in test, selects blade flank average
Abrasion loss Vb be more than 0.3mm or any blade abrasion Vbmax or tipping be more than 0.3mm be service life judgment criteria.
Workpieces processing: cylindrical bar
Rapidoprint: GH4169
Cutting speed: Vc=80m/min
Cutting feed: f=0.25mm/r
Cutting depth: ap=0.5mm
Cutting way: cylindrical turning
The type of cooling: wet type cutting
Two kinds of coatings of comparison have carried out three groups of tests altogether, and test result is as shown in table 1.
From the super thick PVD coated carbides turning insert of the invention that can be seen that in test result in the present embodiment
Working durability relatively comparison blade life is obviously improved, and the relatively comparison blade cut service life in blade cut service life especially of the present invention mentions
It is high by about 43%.
Embodiment 2
A kind of coated carbides milling cutting insert of the invention, blade model APKT160408R-GM, blade cutting edge are adopted
With special passivation treatment technology, matrix is fine grained hard alloy, WC average grain diameter 0.8um, wherein Co mass percent
Mass percent for 10%, Cr is 0.4%.Coating is 6um's using the coating of " present invention in embodiment 1 "
Ti0.33Al0.67N coating, coating hardness 27GPa, coating binding force are good.
The model and basic material and the present invention of comparison blade are all the same, and use identical coating pretreatment mode, institute
The coating used is Ti0.33Al0.67N coating, coating layer thickness 3um, coating stress do not control especially, are current commercial coat.
Above two blade compares test under the following conditions.Cutting test uses the side of two panels blade symmetry clamping
Formula waits the periods for time interval according to the actual state of blade abrasion in cutting process with 10min, 15min, 20min ...
Wear of the tool flank pattern is observed, record blade tool flank wear is measured, if it is different that vibration, spark increase etc. occur in observation interval
Reason condition then stops test observation blade degree of impairment immediately.In test, selection blade flank average abrasion amount Vb is more than
0.3mm or any blade abrasion Vbmax or tipping are more than that 0.4mm is service life judgment criteria.
Rapidoprint: P20 (3Cr2Mo), 33~36HRC of hardness
Cutting speed: Vc=220m/min
Cutting feed: f=0.15mm/r
Cutting depth: ap=1.0mm
Cutting width: ae=38mm
Cutting way: pocketing
The type of cooling: wet type cutting
Two kinds of coatings of comparison have carried out three groups of tests altogether, and test result is as shown in table 2.
From in test result as can be seen that the present embodiment in the coated carbides cutter blade working durability of the invention compared with
The comparison coated chip service life is obviously improved, about 119% life-span upgrading.As it can be seen that the present embodiment coating technology is compared to existing
Technology has apparent performance to improve.
Embodiment 3
A kind of coated carbides milling cutting insert of the invention, blade model blade model SDMT120512-GM, knife
Piece cutting edge uses special passivation treatment technology, and matrix is fine grained hard alloy, and wherein Co mass percent is 13%, Cr
Mass percent be 0.4%.Coating is the Ti of 6um using the coating of " present invention in embodiment 1 "0.33Al0.67N coating,
Coating hardness is 27GPa, and coating binding force is good.
It compares blade model and basic material is identical as the present invention, and use identical coating pretreatment mode, used
Coating be Ti0.33Al0.67N coating, coating thickness 3um, coating stress do not control especially, are current commercial coat.
Above two blade compares test under the following conditions.Cutting test uses the side of 2 symmetrical fixturing blades
Formula waits the periods for time interval sight according to the actual state of blade abrasion in cutting process with 5min, 10min, 15min ...
Wear of the tool flank pattern is examined, measurement records blade tool flank wear, if exceptions such as generation are vibrated in observation interval, spark increases
Situation then stops test observation blade degree of impairment immediately.In test, selection blade flank average abrasion amount Vb is more than
0.3mm or any blade abrasion Vbmax or tipping are more than that 0.4mm is service life judgment criteria.
Rapidoprint: P20 (3Cr2Mo), 33~36HRC of hardness
Cutting speed: Vc=200m/min
Feeding: f=1.0mm/r
Cutting depth: ap=1.0mm
Cutting width: ae=26mm
Cutting way: facing cut
The type of cooling: DRY CUTTING
Two kinds of coatings of comparison have carried out three groups of tests altogether, and test result is as shown in table 3.
It is 73min from the coating milling cutting insert working durability of the invention that can be seen that in test result in the present embodiment,
The average life span for comparing blade is 38min, under current experimental condition, the more existing coated chip of the coated chip of the present embodiment
Service life improves 92%, it is seen then that coated chip involved in the present invention is had excellent performance.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Anyone skilled in the art is not taking off
In the case where from technical solution of the present invention range, all technical solution of the present invention is made perhaps using the technology contents of the disclosure above
Mostly possible changes and modifications, or it is revised as equivalents equivalent embodiment.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (15)
1. a kind of coated carbides cutting tip, including the coating coated on matrix and matrix, described matrix is closed using hard
Golden material is made；It is characterized by: the coating includes being deposited using cathodic arc ion plating method for single-layer or multi-layer
Super thick PVD coating is Me1-xAlxN coating, wherein Me is its of chemical element Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn and Si
A kind of middle or several, x=0.2~0.7, coating layer thickness are 5~10um, Me1-xAlxIt is respectively σ that N coating, which is by stress value,1With
σ2Coating alternately coating obtain, | σ2-σ1| >=2Gpa, σ1With σ2Coat deposition time is alternately to apply between 30 seconds to 60 minutes
Cover period >=2, coating hardness >=25Gpa, coating binding force is good.
2. coated carbides cutting tip according to claim 1, it is characterised in that: the Me1-xAlxN coating, x
=0.5~0.67, coating layer thickness is 6~8um.
3. coated carbides cutting tip according to claim 1 or 2, it is characterised in that: the cemented carbide material
Be using WC as hard phase, using include at least one of Co, Ni, Fe metallic element as Binder Phase, the Binder Phase content is 4
~14wt.%, solid solution has Cr element in the Binder Phase, and the content that Cr element accounts for Binder Phase is 1~10wt.%, described hard
WC particle mean size is 0.4~3.5um in matter alloy.
4. coated carbides cutting tip according to claim 3, it is characterised in that: the Binder Phase content be 6~
The content that 10wt.%, Cr element account for Binder Phase is 4~8wt.%, and WC particle mean size is 0.8~2um in hard alloy.
5. coated carbides cutting tip according to claim 1 or 2, it is characterised in that: the cemented carbide material
It is to be made using the cubic carbide of WC and transition metal element as hard phase with the metallic element for including at least one of Co, Ni, Fe
For Binder Phase, the Binder Phase content is 4~10wt.%, and the cubic carbide is the carbon of one of Ti, Ta and Nb element
The carbide of compound or several elements compoundings, content are 0.05~3wt.%, and WC particle mean size is in the hard alloy
0.4~3.5um.
6. coated carbides cutting tip according to claim 5, it is characterised in that: the Binder Phase content be 6~
8wt.%, the cubic carbide content are 0.1~2wt.%, in the hard alloy WC particle mean size be 1~
2.5um。
7. coated carbides cutting tip according to claim 1, it is characterised in that: the Me1-xAlxN coating, be
Using cathodic arc ion plating method deposition under the premise of, by substrate bias, gas pressure, depositing temperature coating parameter association
Transfer to control the stress of coating, stress value σ1With σ2The coating compositions of two kinds of coatings be identical or not identical.
8. coated carbides cutting tip according to claim 7, it is characterised in that: stress value σ1With σ2Two kinds
The coating time period of coating is identical or not identical.
9. coated carbides cutting tip according to claim 1, it is characterised in that: the coating, in deposition Me1- xAlxBefore N coating, first deposition is selected from one of IV B, V B, VI B of the periodic table of elements or more metallic elements, or
Nitride, carbide or its mixture of metallic element, sedimentation time be 1~30min, substrate bias be -20V to -
300V。
10. coated carbides cutting tip according to claim 9, it is characterised in that: further, sedimentation time is
5~20min, substrate bias are that -40V arrives -250V.
11. coated carbides cutting tip according to claim 1, it is characterised in that: the coating, in Me1-xAlxN
The outermost layer coating that a layer thickness is 0.1~1um, the ingredient and Me of outermost layer coating are also coated on coating1-xAlxN coating at
Point not exactly the same, outermost layer coating improves anti-stick bits or improvement cutting process in cutting process as color layers
In lubricity.
12. a kind of production method of the coated carbides cutting tip as described in any claim in claim 1 to 11,
It is characterized by: being on matrix using the cathodic arc ion plating method deposition ultra high build coating in physical gas-phase deposite method, institute
State ultra high build coating to generate under the following conditions: gross pressure is 0.1~5.5Pa, and vapor deposition electric current is 100~280A, and depositing temperature is
300~700 DEG C, substrate bias is that -30V arrives -250V.
13. the production method of coated carbides cutting tip according to claim 12, it is characterised in that: further
, the coating generates under the following conditions: gross pressure is 2.0~5.0Pa, and vapor deposition electric current is 180~240A, and depositing temperature is
400~650 DEG C, substrate bias is that -40V arrives -200V.
14. the production method of coated carbides cutting tip according to claim 12 further includes further applying
After layer, surface smoothing processing is carried out by machining, this kind machining includes but is not limited to one in polishing and sandblasting
Kind is several.
15. a kind of purposes of the coated carbides cutting tip as described in any claim in claim 1 to 11, special
Sign is: being used for the demanding turning of wearability and Milling Process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910629869.5A CN110373638A (en) | 2019-07-12 | 2019-07-12 | A kind of coated carbides cutting tip and preparation method thereof |
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| CN201910629869.5A CN110373638A (en) | 2019-07-12 | 2019-07-12 | A kind of coated carbides cutting tip and preparation method thereof |
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| CN110373638A true CN110373638A (en) | 2019-10-25 |
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| CN201910629869.5A Pending CN110373638A (en) | 2019-07-12 | 2019-07-12 | A kind of coated carbides cutting tip and preparation method thereof |
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| CN (1) | CN110373638A (en) |
Cited By (3)
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| CN112095079A (en) * | 2020-09-02 | 2020-12-18 | 东莞市华升真空镀膜科技有限公司 | Cathode magnetic field modulated hard coating cutter and preparation method and application thereof |
| CN112342525A (en) * | 2020-10-20 | 2021-02-09 | 厦门金鹭特种合金有限公司 | CVD coating suitable for vermicular cast iron cutting processing and preparation method thereof |
| CN116372206A (en) * | 2023-03-09 | 2023-07-04 | 株洲肯特硬质合金股份有限公司 | Nanometer coating for cutter and coated cutter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095079A (en) * | 2020-09-02 | 2020-12-18 | 东莞市华升真空镀膜科技有限公司 | Cathode magnetic field modulated hard coating cutter and preparation method and application thereof |
| CN112095079B (en) * | 2020-09-02 | 2022-02-11 | 东莞市华升真空镀膜科技有限公司 | Cathode magnetic field modulated hard coating cutter and preparation method and application thereof |
| CN112342525A (en) * | 2020-10-20 | 2021-02-09 | 厦门金鹭特种合金有限公司 | CVD coating suitable for vermicular cast iron cutting processing and preparation method thereof |
| CN116372206A (en) * | 2023-03-09 | 2023-07-04 | 株洲肯特硬质合金股份有限公司 | Nanometer coating for cutter and coated cutter |
| CN116372206B (en) * | 2023-03-09 | 2024-03-19 | 株洲肯特硬质合金股份有限公司 | Nanometer coating for cutter and coated cutter |
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