CN214300358U

CN214300358U - High-hardness technology for surface coating of hard alloy cutter

Info

Publication number: CN214300358U
Application number: CN202023144634.4U
Authority: CN
Inventors: 刘博�; 吴静; 曹钰; 张景龙; 刘峰正
Original assignee: Qingdao Date Pml Precision Mechanism Ltd
Current assignee: Qingdao Date Pml Precision Mechanism Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-09-28
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to an alloy cutter technical field discloses a carbide cutter surface coating's high rigidity technique, including the handle of a knife, a serial communication port, the handle of a knife upper end is equipped with the tool bit, the tool bit outer wall is equipped with the TiN coating, TiN coating outer wall is equipped with the TiCN coating, TiCN coating outer wall is equipped with the laser cladding coating, laser cladding coating outer wall is equipped with the diamond coating, the diamond coating outer wall is equipped with the thin layer, the thin layer outer wall is equipped with the ion spraying layer, for among the prior art, the diamond coating is relatively poor at the adhesive force on carbide cutter base member, if the change material, can make the wearability weaken, produce hardness strength and reduce, make the extension of crackle, the easy tipping. The utility model discloses the beneficial effect who reaches is: the outer coating of the cutter handle can still keep the hardness at high temperature, the laser cladding coating has the characteristics of low friction, the thermal conductivity of the diamond coating, the ion spraying coating has higher anti-stripping capability, the whole structure is simple, and the popularization and use values are higher.

Description

High-hardness technology for surface coating of hard alloy cutter

Technical Field

The utility model relates to an alloy cutter technical field specifically is a carbide cutter surface coating's high rigidity technique.

Background

With the advancement of coating technology, the method for coating the hard alloy cutter is continuously improved, and the types of the hard alloy cutter coating are continuously updated, the single compound coating is developed to the multi-complex compound coating, and the number of the coating layers is also developed from several layers to more than ten layers. Cemented carbide tools have a series of excellent properties including high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc., and are widely used as cutting tool materials.

Currently, diamond coatings are most widely used in cemented carbide tools. However, the diamond coating has poor adhesion on the hard alloy cutter substrate, and is easy to fall off from the substrate, so that the cutting performance and the service life of the diamond coated cutter are seriously influenced, and the diamond coating can be graphitized at high temperature when a steel material is cut, so that the diamond coated cutter can only be used for high-speed precision machining of nonferrous metals and nonmetallic materials, the machining range is single, if the material is changed, the wear resistance is weakened, the hardness strength is reduced, cracks are expanded, and the edge breaking is easy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a carbide tool surface coating's high rigidity technique, it is relatively poor with the adhesive force of diamond coating on carbide tool base member in the solution prior art, it drops from the base member very easily, the cutting performance and the life of diamond coating cutter have seriously been influenced, and diamond coating will graphitize under the high temperature condition when cutting steel material, consequently can only be used for the high-speed precision machining of non ferrous metal and non-metallic material, the process range is single comparatively, if the change material, can make the wearability weaken, produce hardness strength and reduce, make the extension of crackle, the problem of tipping easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a carbide tool surface coating's high rigidity technique, includes the handle of a knife, the handle of a knife upper end is equipped with the tool bit, the tool bit outer wall is equipped with the TiN coating, the TiN coating outer wall is equipped with the TiCN coating, TiCN coating outer wall is equipped with the laser cladding coating, the laser cladding coating outer wall is equipped with the diamond coating, the diamond coating outer wall is equipped with the thin layer, the thin layer outer wall is equipped with the ion spraying layer.

Preferably, the cutter handle comprises a substrate, an outer coating is arranged on the outer wall of the substrate, and the outer coating is a TiAlN coating.

Preferably, the laser cladding coating is Al₂O₃And (4) coating.

Preferably, the film layer is a diamond-like carbon layer.

Preferably, the diamond coating is a high quality polycrystalline diamond film deposited by hot wire CVD.

Preferably, the ion sprayed layer is a TiAlCN coating.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model relates to a carbide tool surface coating's high rigidity technique, the handle of a knife of setting, because its surface is equipped with the external coating during the use, the external coating is TiAlN coating, has guaranteed that the cutter still can keep its hardness under high temperature.

(2) The utility model relates to a carbide tool surface coating's high rigidity technique, the laser cladding coating of setting is because it is Al during the use₂O₃Coating of Al₂O₃Coating toolHas excellent heat insulation effect and low friction characteristic, can reduce the loss of coating tissues, achieves the advantage of comprehensively utilizing various coating components, and ensures that the cutter obtains better comprehensive performance.

(3) The utility model relates to a carbide tool surface coating's high rigidity technique, the thin layer of setting, because it is diamond-like carbon layer during the use, diamond-like carbon layer has advantages such as high compressive strength and hardness, low coefficient of friction and good corrosion resistance.

(4) The utility model relates to a carbide tool surface coating's high rigidity technique, the ion spraying coating of setting, because it is TiAlCN coating during the use, the TiAlCN coating has higher anti-stripping ability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the middle knife handle of the present invention;

fig. 3 is a sectional structure diagram of the cutter head coating in fig. 1.

And in the reference signs: 1. a knife handle; 2. a cutter head; 3. an outer coating layer; 4. a substrate; 5. TiN coating; 6. A TiCN coating; 7. laser cladding coating; 8. coating diamond; 9. a thin film layer; 10. ion spraying the coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a high hardness technique for the surface coating of a hard alloy tool: including handle of a

knife

1, 1 upper ends of handle of a knife are equipped with

tool bit

2, and 2 outer walls of tool bit are equipped with TiN coating 5, and 5 outer walls of TiN coating are equipped with

TiCN coating

6, and 6 outer walls of TiCN coating are equipped with laser cladding coating 7, and 7 outer walls of laser cladding coating are equipped with

diamond coating

8, and 8 outer walls of diamond coating are equipped with thin layer 9, and the outer wall of thin layer 9 is equipped with ion spraying layer 10.

Further, the cutter handle 1 comprises a substrate 4, an outer coating 3 is arranged on the outer wall of the substrate 4, and the outer coating 3 is a TiAlN coating.

In this embodiment, the reason that the TiAlN coating maintains its hardness at high temperatures is that a layer of alumina can form between the tool and the chip, which can transfer heat from the tool into the workpiece or chip.

Further, the laser cladding coating 7 is Al₂O₃And (4) coating.

In the present embodiment, Al₂O₃The coating has excellent heat insulation effect and low friction characteristic, can reduce the loss of coating tissues, achieves the advantage of comprehensively utilizing various coating components, and ensures that the cutter obtains better comprehensive performance.

Further, the film layer 9 is a diamond-like carbon layer.

In this embodiment, the diamond-like layer (C, H doped DLC film prepared by plasma immersion ion implantation and deposition techniques) is amorphous, but has many diamond-like properties, such as high compressive strength and hardness, low coefficient of friction, and good corrosion resistance.

Further, the diamond coating 8 is a high quality polycrystalline diamond film deposited by a hot filament CVD process.

In the present embodiment, the diamond coating layer 8 has good mechanical properties such as high hardness, high elastic modulus, good wear resistance, excellent corrosion resistance, and thermal conductivity.

Further, the ion sprayed layer 10 is a TiAlCN coating.

In the present embodiment, the TiAlCN coating has a high anti-spalling capability.

Specifically, the utility model discloses a theory of operation and use flow: the utility model discloses install the back, the external coating 3 of 1 base member 4 outer walls of handle of a knife is TiAlN coating, still can keep the reason of its hardness under high temperature to lie in can forming one deck aluminium oxide, oxygen between cutter and smear metalThe aluminized layer can transmit heat from the cutter to a workpiece or cutting chips, the TiN coating 5 on the outer wall of the cutter head 2 improves the wear resistance of the cutter, the TiCN coating 6 has high oxidation resistance, can form a multilayer structure with different components, can reduce the internal stress of the coating, improve the toughness, increase the thickness of the coating, prevent the expansion of cracks and reduce the edge breakage, and the laser cladding coating 7 is Al₂O ₃Coating of Al₂O₃The coating has excellent heat insulation effect and low friction characteristic, can reduce the loss of coating tissues, achieves the advantage of comprehensively utilizing various coating components, and ensures that the cutter obtains better comprehensive performance, the diamond coating 8 is a high-quality polycrystalline diamond film deposited by a hot wire CVD method, so that the cutter has good mechanical properties, such as high hardness, high elastic modulus, good wear resistance, excellent corrosion resistance and thermal conductivity, the film layer 9 is a diamond-like carbon layer which is an amorphous body but has higher compressive strength and hardness, the TiAlCN coating of the ion spraying layer 10 has high content of Al atoms, which is beneficial to improving the wear resistance, and the amorphous C atoms are beneficial to reducing the friction coefficient; atoms such as Ti, Al, C, N and the like generate enrichment phenomenon in the coating and diffuse at the bonding interface, so that the cutter has higher anti-stripping capability until the whole working sequence is completed.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a carbide tool surface coating's high rigidity technique, includes handle of a knife (1), its characterized in that, handle of a knife (1) upper end is equipped with tool bit (2), tool bit (2) outer wall is equipped with TiN coating (5), TiN coating (5) outer wall is equipped with TiCN coating (6), TiCN coating (6) outer wall is equipped with laser cladding coating (7), laser cladding coating (7) outer wall is equipped with diamond coating (8), diamond coating (8) outer wall is equipped with thin layer (9), thin layer (9) outer wall is equipped with ion spraying layer (10).

2. The high hardness technique for surface coating of cemented carbide tool according to claim 1, wherein: the cutter handle (1) comprises a substrate (4), an outer coating (3) is arranged on the outer wall of the substrate (4), and the outer coating (3) is a TiAlN coating.

3. The high hardness technique for surface coating of cemented carbide tool according to claim 1, wherein: the laser cladding coating (7) is Al₂O₃And (4) coating.

4. The high hardness technique for surface coating of cemented carbide tool according to claim 1, wherein: the thin film layer (9) is a diamond-like carbon layer.

5. The high hardness technique for surface coating of cemented carbide tool according to claim 1, wherein: the diamond coating (8) is a high-quality polycrystalline diamond film layer deposited by a hot wire CVD method.

6. The high hardness technique for surface coating of cemented carbide tool according to claim 1, wherein: the ion spraying coating (10) is a TiAlCN coating.