CN220112363U - PCBN coating cutter for processing hardening material - Google Patents
PCBN coating cutter for processing hardening material Download PDFInfo
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- CN220112363U CN220112363U CN202320014188.XU CN202320014188U CN220112363U CN 220112363 U CN220112363 U CN 220112363U CN 202320014188 U CN202320014188 U CN 202320014188U CN 220112363 U CN220112363 U CN 220112363U
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- cutter
- pcbn
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- resistant layer
- tool
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- 239000011248 coating agent Substances 0.000 title claims abstract description 28
- 238000000576 coating method Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 title claims abstract description 24
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 title abstract description 22
- 230000001050 lubricating effect Effects 0.000 claims abstract description 20
- 238000003754 machining Methods 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 19
- 230000008021 deposition Effects 0.000 claims abstract 3
- 229910010037 TiAlN Inorganic materials 0.000 claims description 15
- 229910008482 TiSiN Inorganic materials 0.000 claims description 14
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 5
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 abstract description 17
- 238000005299 abrasion Methods 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 12
- 239000010959 steel Substances 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Physical Vapour Deposition (AREA)
Abstract
A PCBN coated cutter for processing hardening materials relates to the technical field of metal machining, and comprises a cutter matrix and a coating deposited on the cutter matrix, wherein the coating comprises a lubricating collapse-resistant layer deposited on the front cutter surface of the cutter matrix and a strong wear-resistant layer deposited on the rear cutter surface of the cutter matrix; the front cutter surface of the cutter matrix is provided with a micro-nano texture A after a lubricating collapse-resistant layer is deposited; the rear cutter surface of the cutter matrix is provided with a micro-nano texture B before the deposition of the strong wear-resistant layer. The utility model combines the abrasion characteristics of the front and rear cutter surfaces of the cutter matrix when the PCBN is used for cutting the quenched steel material, and carries out differential surface design on the front and rear cutter surfaces of the cutter matrix, thereby effectively reducing abrasive abrasion and adhesive abrasion when the PCBN cutter is used for cutting the quenched steel material, greatly improving the abrasion resistance and collapse resistance of the rear cutter surface of the cutter and ensuring the stability and reliability of the PCBN cutter for processing the quenched steel material.
Description
Technical Field
The utility model relates to the technical field of metal machining, in particular to a PCBN coated cutter for machining a hardening material.
Background
In general, the hardness of the quenched steel can reach HRC 50-65, and the quenched steel is a very wear-resistant material and a very difficult-to-process material. The traditional grinding processing mode is used for finishing the quenched steel, so that the efficiency is low, the cost is high, and the environment pollution of different degrees can be caused. Therefore, the method of cutting "turning instead of grinding" hardened steel using PCBN tools has become an area of the current machining industry. The PCBN tool continuously softens a cutting area of a workpiece material by high heat generated in the process of cutting quenched steel at a high speed, so that cutting machining is performed, and compared with a hard alloy tool, the PCBN tool has the advantages of greatly improving the efficiency, improving the surface roughness of the workpiece and improving the machining precision.
PCBN tools are in various wear forms when cutting hardened steel, wherein the wear of the rake face is mainly caused by friction between machined chips and the rake face of the tool during cutting, and the wear form is usually crescent and mainly appears on the upper surface of the tool and is called crescent wear. In the cutter wearing process, crescent holes are gradually expanded, so that the cutter strength is reduced, and cutter edge tipping is extremely easy to occur. The abrasion of the rear cutter surface is caused by the contact friction between the machined surface and the rear cutter surface of the cutter, is the most common abrasion mode in the metal cutting process, and occurs on the side edge of the cutter below the cutting edge, and can directly influence the machining dimensional precision and the surface integrity.
The abrasion of the PCBN cutter during cutting of the quenched steel can cause the reduction of the durability of the cutter, the frequent cutter changing times, the reduction of the dimensional accuracy of a workpiece to be processed, the reduction of the surface roughness and the like. In order to improve the overall durability of the tool and prolong the service life of the tool, the surface treatment technology (such as a coating technology, a surface strengthening technology and the like) is adopted to treat the surface of the PCBN tool, so that the tool performance is further improved in aspects of isolating cutting heat, increasing lubricity, reducing relative friction and the like. However, the existing PCBN cutter surface treatment technology generally adopts the same treatment mode, and does not consider the difference of the abrasion mechanism and the abrasion form of the front cutter surface and the rear cutter surface; the effects of respectively inhibiting or improving the abrasion of the front cutter surface and the rear cutter surface are poor, and the service life of the cutter needs to be further prolonged.
Disclosure of Invention
In view of the above-mentioned problems, the present utility model provides a PCBN coated cutting tool for machining hardened material.
The specific technical scheme is as follows: the coating comprises a lubricating collapse-resistant layer deposited on the front cutter surface of the cutter matrix and a strong wear-resistant layer deposited on the rear cutter surface of the cutter matrix; the front cutter surface of the cutter matrix is provided with a micro-nano texture A after the lubricating collapse-resistant layer is deposited; the rear tool face of the tool matrix is provided with a micro-nano texture B before the strong wear-resistant layer is deposited.
Preferably, the lubricating collapse-resistant layer is a TiAlVN layer, and the thickness of the lubricating collapse-resistant layer is 2-6 mu m.
Preferably, the strong wear-resistant layer is a TiAlN/TiSiN multilayer composite coating, and the thickness of the strong wear-resistant layer is 2-6 mu m.
Preferably, the TiAlN/TiSiN multilayer composite coating is obtained by alternately depositing TiAlN and TiSiN, wherein the thickness of the TiAlN is 100-500nm, and the thickness of the TiSiN is 100-500nm.
Preferably, the micro-nano texture A is a micro texture formed by arc pits, the depth of the arc pits is 0.5-4 mu m, the diameter of the arc pits is 20-50 mu m, and the density of the micro texture is 10-40%.
Preferably, the micro-nano texture B is a micro texture formed by linear grooves, wherein the depth of the linear grooves is 5-10 mu m, the width of the linear grooves is 10-20 mu m, and the distance of the linear grooves is 20-40 mu m.
Preferably, the micro-nano texture a and the micro-nano texture B are both obtained by laser processing, which is one of femtosecond laser processing or nanosecond laser processing.
Preferably, the lubricating collapse-resistant layer and the strong wear-resistant layer are both obtained by a high-power pulse magnetron sputtering technology.
The utility model provides a PCBN coating cutter for processing hardening materials, which has the beneficial effects compared with the prior art that: the utility model combines the abrasion characteristics of the front and rear cutter surfaces of the cutter matrix when the PCBN is used for cutting the quenched steel material, and carries out differential surface design on the front and rear cutter surfaces of the cutter matrix, thereby effectively reducing abrasive abrasion and adhesive abrasion when the PCBN cutter is used for cutting the quenched steel material, greatly improving the abrasion resistance and collapse resistance of the rear cutter surface of the cutter and ensuring the stability and reliability of the PCBN cutter for processing the quenched steel material.
Drawings
Fig. 1: the utility model provides a front view of the micro-nano texture A.
Fig. 2: the utility model provides a front view of the micro-nano texture B.
Fig. 3: is a side view of the tool base body provided by the utility model.
In the figure: 1-lubrication collapse-resistant layer, 2-strong wear-resistant layer, 3-tool matrix rake face, 4-tool matrix flank face, 5-arc pit and 6-line type groove.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which may be made by those skilled in the art without the inventive faculty, are intended to be within the scope of the present utility model, and in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings, which are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance in the description of the present utility model, but rather as being construed broadly as the terms "mounted," "connected," "coupled," or "connected" unless expressly specified or limited otherwise, e.g., as either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.
Embodiment one: as shown in fig. 3, a PCBN coated tool for machining hardened material comprises a tool body and a coating deposited on the tool body, the coating comprising a lubricating collapse resistant layer 1 deposited on a rake face 3 of the tool body and a strong wear resistant layer 2 deposited on a relief face 4 of the tool body, the lubricating collapse resistant layer 1 and the strong wear resistant layer 2 being both obtained by high power pulsed magnetron sputtering techniques.
Wherein the lubricating collapse-resistant layer 1 is a TiAlVN layer, and the thickness of the lubricating collapse-resistant layer 1 is 2-6 mu m.
Wherein the strong wear-resistant layer 2 is a TiAlN/TiSiN multilayer composite coating, and the thickness of the strong wear-resistant layer 2 is 2-6 mu m. The TiAlN/TiSiN multilayer composite coating is obtained by alternately depositing TiAlN and TiSiN, wherein the thickness of the TiAlN is 100-500nm, and the thickness of the TiSiN is 100-500nm.
The cutter matrix front cutter surface 3 is provided with a micro-nano texture A after the lubricating anti-collapse layer 1 is deposited; the tool substrate relief surface 4 is provided with micro-nano texture B prior to depositing the strong wear layer 2. The micro-nano texture A and the micro-nano texture B are obtained by laser processing, and the laser processing is one of femtosecond laser processing or nanosecond laser processing.
As shown in FIG. 1, the micro-nano texture A is a micro texture formed by arc pits 5, the depth of the arc pits 5 is 0.5-4 mu m, the diameter is 20-50 mu m, and the micro texture density is 10-40%.
As shown in fig. 2, the micro-nano texture B is a micro texture formed by the linear grooves 6, and the linear grooves 6 have a depth of 5-10 μm, a width of 10-20 μm, and a pitch of 20-40 μm.
The coating (TiAlVN layer) prepared by combining the advantages of high-power pulse magnetron sputtering preparation on the front tool surface of the tool matrix has smooth and compact surface, and the Ti-Al-V-N solid solution can be formed by adding the lubricating phase V into the TiAlN coating, so that the solid solution strengthening effect is realized, the hardness of the coating is effectively improved, and the lower friction coefficient is obtained; the surface of the lubricating collapse-resistant layer 1 is further subjected to laser microtexture treatment, the coating surface is provided with a certain texture structure by utilizing a bionics principle, antifriction, grinding reduction and better lubricating effects are more remarkably achieved, the chip removal effect of the front cutter surface during PCBN cutter cutting is greatly improved, the friction between chips and the front cutter surface of the cutter is reduced, crescent wear is further suppressed, collapse is prevented, and the cutter strength is maintained.
According to the utility model, the linear groove micro-texture arrays with different densities and regular arrangement are prepared on the rear cutter surface of the cutter substrate, a multi-layer composite coating (TiAlN/TiSiN multi-layer composite coating) is deposited on the surface of the micro-texture rear substrate by utilizing a high-power pulse magnetron sputtering technology, and a mechanically inlaid interface can be formed by utilizing the micro-texture surface deposited coating, so that the bonding strength of the multi-layer composite coating TiAlN/TiSiN and the cutter substrate is effectively improved, the residual stress of the film-substrate bonding interface is released, the generation and expansion trend of internal microcracks is reduced, and the premature peeling of the coating in the abrasion process is effectively avoided; meanwhile, the friction coefficient of the coating can be reduced; by combining the functions, abrasive wear and adhesive wear of the PCBN cutter when cutting the quenched steel material can be effectively reduced, and the wear resistance of the rear cutter surface of the cutter is greatly improved.
While the present utility model has been particularly shown and described with reference to a preferred embodiment, a number of methods and instrumentalities embodying the present utility model, the foregoing is merely a preferred embodiment of the present utility model, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (7)
1. A PcBN coated tool for machining hardened material, comprising a tool substrate and a coating deposited on the tool substrate, characterized in that the coating comprises a lubricating collapse resistant layer (1) deposited on the tool substrate rake face (3) and a strong wear resistant layer (2) deposited on the tool substrate relief face (4); the cutter matrix front cutter surface (3) is provided with a micro-nano texture A after the lubricating collapse-resistant layer (1) is deposited; the tool substrate flank (4) is provided with micro-nano texture B prior to deposition of the strong wear layer (2).
2. A PcBN coated tool for machining hardened materials according to claim 1, characterised in that the lubricating collapse resistant layer (1) is a TiAlVN layer, the lubricating collapse resistant layer (1) having a thickness of 2-6 μm.
3. A PcBN coated tool for machining hardened materials according to claim 1, characterized in that the strong wear layer (2) is a TiAlN/TiSiN multilayer composite coating, the thickness of the strong wear layer (2) being 2-6 μm, the TiAlN/TiSiN multilayer composite coating being obtained by alternating deposition of TiAlN and TiSiN, the TiAlN thickness being 100-500nm, the TiSiN thickness being 100-500nm.
4. The PcBN coating tool for machining hardened materials according to claim 1, wherein the micro-nano texture a is a micro texture formed by circular arc pits (5), the depth of the circular arc pits (5) is 0.5-4 μm, the diameter is 20-50 μm, and the micro texture density is 10-40%.
5. A PcBN coated tool for machining hardened material according to claim 1, wherein the micro-nano texture B is a micro texture formed by linear grooves (6), the linear grooves (6) having a depth of 5-10 μm, a width of 10-20 μm, a pitch of 20-40 μm.
6. A PcBN coated tool for machining hardened material according to claim 1, wherein the micro-nano texture a and the micro-nano texture B are both obtained by laser machining, the laser machining being one of femtosecond laser machining or nanosecond laser machining.
7. A PcBN coated tool for machining hardened materials according to claim 1, characterised in that the lubricating collapse resistant layer (1) and the strong wear resistant layer (2) are both obtained by high power pulsed magnetron sputtering techniques.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320014188.XU CN220112363U (en) | 2023-01-05 | 2023-01-05 | PCBN coating cutter for processing hardening material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320014188.XU CN220112363U (en) | 2023-01-05 | 2023-01-05 | PCBN coating cutter for processing hardening material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220112363U true CN220112363U (en) | 2023-12-01 |
Family
ID=88896300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320014188.XU Active CN220112363U (en) | 2023-01-05 | 2023-01-05 | PCBN coating cutter for processing hardening material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220112363U (en) |
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2023
- 2023-01-05 CN CN202320014188.XU patent/CN220112363U/en active Active
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