CN113843424A - Multilayer coating protection type cutting tool and production method thereof - Google Patents

Multilayer coating protection type cutting tool and production method thereof Download PDF

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Publication number
CN113843424A
CN113843424A CN202111053307.4A CN202111053307A CN113843424A CN 113843424 A CN113843424 A CN 113843424A CN 202111053307 A CN202111053307 A CN 202111053307A CN 113843424 A CN113843424 A CN 113843424A
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China
Prior art keywords
coating
alloy
cutting tool
coated
protective
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CN202111053307.4A
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Chinese (zh)
Inventor
杨琳
邹佳旭
张荐棋
张湘媛
张和晴
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Priority to CN202111053307.4A priority Critical patent/CN113843424A/en
Publication of CN113843424A publication Critical patent/CN113843424A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • C23C4/11—Oxides
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23B2228/10—Coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
    • B23B2228/36—Multi-layered

Abstract

The invention discloses a multilayer coating protection type cutting tool, which comprises a cutting tool main body, wherein the interior of the cutting tool main body consists of a wear-resistant protective coating, an alloy coating and a composite protective layer, the wear-resistant protective coating is coated on the outer surface of the alloy coating, the composite protective layer is coated on the inner surface of the alloy coating, the interior of the wear-resistant protective coating consists of a tungsten carbide coating, a silicon oxide coating and a carbon-silicon coating, the interior of the alloy coating consists of a titanium alloy coating, an aluminum alloy coating and a heat-resistant alloy coating, and the interior of the composite protective layer consists of a diamond protective layer, a hard alloy protective layer and a high-speed steel protective layer. By adopting the process to produce and manufacture the cutting tool, the cutting tool has excellent wear resistance and heat resistance, and simultaneously has higher structural strength and hardness, so that the phenomenon of abrasion cannot easily occur.

Description

Multilayer coating protection type cutting tool and production method thereof
Technical Field
The invention relates to the technical field of cutting tool production, in particular to a multilayer coating protection type cutting tool and a production method thereof.
Background
Cutting tools are tools used in machining for cutting operations. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool. The Chinese cutting tool manufacturing industry has the chance and the challenge, but the favorable factors of the industry development are dominant in the whole view. According to the development requirement of the manufacturing industry, multifunctional composite cutters and high-speed and high-efficiency cutters become the mainstream of cutter development. In the face of increasingly difficult materials, the tool industry must improve tool materials, develop new tool materials, and more rational tool configurations.
The existing cutting tool has the defects of low structural strength, poor wear resistance and heat resistance, easy occurrence of cutting damage phenomenon and serious influence on the using effect of the tool, so that the market needs to develop a novel multilayer coating protection type cutting tool and a production method thereof.
Disclosure of Invention
The invention aims to provide a multilayer coating protection type cutting tool and a production method thereof, and aims to solve the problems that the conventional cutting tool in the background art is not high enough in structural strength, poor in wear-resisting and heat-resisting properties, easy to generate a cutting damage phenomenon and seriously affects the using effect of the cutting tool.
In order to achieve the purpose, the invention provides the following technical scheme: a multilayer coating protection type cutting tool comprises a cutting tool main body, wherein the inside of the cutting tool main body is composed of a wear-resistant protective coating, an alloy coating and a composite protective layer, the wear-resistant protective coating is coated on the outer surface of the alloy coating, the composite protective layer is coated on the inner surface of the alloy coating, the inside of the wear-resistant protective coating is composed of a tungsten carbide coating, a silicon oxide coating and a carbon-silicon coating, the inside of the alloy coating is composed of a titanium alloy coating, an aluminum alloy coating and a heat-resistant alloy coating, and the inside of the composite protective layer is composed of a diamond protective layer, a hard alloy protective layer and a high-speed steel protective layer.
Preferably, a fixed knife handle is installed at one end of the cutting knife main body, the cutting knife main body and the fixed knife handle are of a detachable structure, a thread fixing hole is formed in the fixed knife handle, and the cutting knife main body is tightly screwed and fixed with the thread fixing hole through a threaded rod.
Preferably, the tungsten carbide coating is coated on the outer surface of the silicon oxide coating, the carbon silicon coating is coated on the inner surface of the silicon oxide coating, the tungsten carbide coating, the silicon oxide coating and the carbon silicon coating are uniformly sprayed on the outer surface of the cutting tool main body by adopting a plasma spraying process, and the thickness of the wear-resistant protective coating is 2 mm.
Preferably, titanium carbide, tantalum carbide and silicide are added into the tungsten carbide coating, wherein the mass ratio of the titanium carbide to the tantalum carbide to the silicide is 4: 3: 3.
preferably, the titanium alloy plating layer is coated on the outer surface of the aluminum alloy plating layer, the heat-resistant alloy plating layer is coated on the inner surface of the aluminum alloy plating layer, the heat-resistant temperature of the alloy plating layer is 500-600 ℃, and the strength of the alloy plating layer is 2-3 times that of the common alloy.
Preferably, the diamond protective layer is coated on the outer surface of the hard alloy protective layer, the high-speed steel protective layer is coated on the inner surface of the hard alloy protective layer, diamond particles and alloy powder are filled in the diamond protective layer, and a plurality of alloy mixtures are arranged in the hard alloy protective layer.
Preferably, the wear-resistant protective coating, the alloy coating and the composite protective layer are integrally formed by adopting a hot pressing process.
It is another object of the present invention to provide a method for producing a multilayer coated protective cutting tool, comprising the steps of:
s1, cutting and forming, namely, making a cutting die according to the size of a product, selecting equipment according to the material, the hardness, the thickness and the size, and straightening the plate by using a straightening machine before heat treatment;
s2, according to the particularity of the cutter structure and the use requirement, the cutter needs to be subjected to quenching and tempering firstly when being subjected to heat treatment, wherein the quenching and tempering hardness is 28-32 HRC;
s3, after the semi-finish machining is finished, performing surface nitriding treatment, wherein the thickness of the nitriding layer is 0.4-0.6 mm, and the hardness is 600-750 HV;
s4, the hardness of the material is increased by the quenching and tempering process after heat treatment, so that the cutter has wear resistance, and the cutter is ensured not to deform after heat treatment to meet the requirement of design precision;
s5, the wool wheel driven by the high-speed motor is used to match with the blue or green wax to polish the surface of the wool wheel, and the wool wheel is used to open the edge of the wool wheel after the surface is polished and wax is removed.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the process to produce and manufacture the cutting tool, the cutting tool has excellent wear resistance and heat resistance, higher structural strength and hardness, no wear phenomenon easily occurs, the use effect of the cutting tool is improved, and the service life of the cutting tool is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the internal components of the cutting insert body of the present invention;
FIG. 4 is a schematic view of the internal composition of the wear-resistant protective coating of the present invention;
FIG. 5 is a schematic view of the internal composition of the alloy coating according to the present invention;
FIG. 6 is a schematic view of the internal structure of the composite protective layer according to the present invention;
FIG. 7 is a flow chart of the steps of the production method of the present invention.
In the figure: 1. fixing a knife handle; 2. a cutting blade body; 3. a threaded fixing hole; 4. a threaded rod; 5. a wear-resistant protective coating; 6. alloy plating; 7. compounding a protective layer; 8. a tungsten carbide coating; 9. a silicon oxide coating; 10. a carbon-silicon coating; 11. a titanium alloy plating layer; 12. an aluminum alloy plating layer; 13. a heat-resistant alloy plating layer; 14. a diamond protective layer; 15. a hard alloy protective layer; 16. and (4) a high-speed steel protective layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an embodiment of the present invention is shown: a multilayer coating protection type cutting tool comprises a cutting tool body 2, wherein the inside of the cutting tool body 2 is jointly composed of a wear-resistant protective coating 5, an alloy coating 6 and a composite protective layer 7, the wear-resistant protective coating 5 is coated on the outer surface of the alloy coating 6, the composite protective layer 7 is coated on the inner surface of the alloy coating 6, the inside of the wear-resistant protective coating 5 is jointly composed of a tungsten carbide coating 8, a silicon oxide coating 9 and a carbon-silicon coating 10, the inside of the alloy coating 6 is jointly composed of a titanium alloy coating 11, an aluminum alloy coating 12 and a heat-resistant alloy coating 13, and the inside of the composite protective layer 7 is jointly composed of a diamond protective layer 14, a hard alloy protective layer 15 and a high-speed steel protective layer 16.
Further, fixed handle of a knife 1 is installed to the one end of cutting sword main part 2, is detachable structure between cutting sword main part 2 and the fixed handle of a knife 1, and the inside of fixed handle of a knife 1 is provided with thread fixing hole 3, and cutting sword main part 2 closely connects soon fixedly with thread fixing hole 3 through threaded rod 4.
Further, the tungsten carbide coating 8 is coated on the outer surface of the silicon oxide coating 9, the carbon silicon coating 10 is coated on the inner surface of the silicon oxide coating 9, the tungsten carbide coating 8, the silicon oxide coating 9 and the carbon silicon coating 10 are uniformly sprayed on the outer surface of the cutting tool main body 2 by adopting a plasma spraying process, and the thickness of the wear-resistant protective coating 5 is 2 mm.
Further, titanium carbide, tantalum carbide and silicide are added into the tungsten carbide coating 8, wherein the mass ratio of the titanium carbide to the tantalum carbide to the silicide is 4: 3: 3.
further, the titanium alloy plating layer 11 is coated on the outer surface of the aluminum alloy plating layer 12, the heat-resistant alloy plating layer 13 is coated on the inner surface of the aluminum alloy plating layer 12, the heat-resistant temperature of the alloy plating layer 6 is 500-600 ℃, and the strength is 2-3 times that of the common alloy.
Further, the diamond protection layer 14 is coated on the outer surface of the hard alloy protection layer 15, the high-speed steel protection layer 16 is coated on the inner surface of the hard alloy protection layer 15, diamond particles and alloy powder are filled in the diamond protection layer 14, and a plurality of alloy mixtures are arranged in the hard alloy protection layer 15.
Further, the wear-resistant protective coating 5, the alloy coating 6 and the composite protective layer 7 are integrally formed by adopting a hot pressing process.
Further, another object of the present invention is to provide a method for producing a multilayer coating protection type cutting tool, comprising the following production steps: s1, cutting and forming, namely, making a cutting die according to the size of a product, selecting equipment according to the material, the hardness, the thickness and the size, and straightening the plate by using a straightening machine before heat treatment; s2, according to the particularity of the cutter structure and the use requirement, the cutter needs to be subjected to quenching and tempering firstly when being subjected to heat treatment, wherein the quenching and tempering hardness is 28-32 HRC; s3, after the semi-finish machining is finished, performing surface nitriding treatment, wherein the thickness of the nitriding layer is 0.4-0.6 mm, and the hardness is 600-750 HV; s4, the hardness of the material is increased by the quenching and tempering process after heat treatment, so that the cutter has wear resistance, and the cutter is ensured not to deform after heat treatment to meet the requirement of design precision; s5, the wool wheel driven by the high-speed motor is used to match with the blue or green wax to polish the surface of the wool wheel, and the wool wheel is used to open the edge of the wool wheel after the surface is polished and wax is removed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. A multilayer coating protection type cutting tool comprises a cutting tool main body (2) and is characterized in that, the interior of the cutting knife main body (2) consists of a wear-resistant protective coating (5), an alloy coating (6) and a composite protective layer (7), the wear-resistant protective coating (5) is coated on the outer surface of the alloy coating (6), the composite protective layer (7) is coated on the inner surface of the alloy coating (6), the interior of the wear-resistant protective coating (5) is composed of a tungsten carbide coating (8), a silicon oxide coating (9) and a carbon-silicon coating (10), the interior of the alloy coating (6) is composed of a titanium alloy coating (11), an aluminum alloy coating (12) and a heat-resistant alloy coating (13), and the interior of the composite protective layer (7) is composed of a diamond protective layer (14), a hard alloy protective layer (15) and a high-speed steel protective layer (16).
2. A multilayer coated protective cutting tool according to claim 1 wherein: fixed handle of a knife (1) is installed to the one end of cutting sword main part (2), is detachable structure between cutting sword main part (2) and fixed handle of a knife (1), and the inside of fixed handle of a knife (1) is provided with thread tightening hole (3), and cutting sword main part (2) closely connect soon fixedly through threaded rod (4) and thread tightening hole (3).
3. A multilayer coated protective cutting tool according to claim 1 wherein: the tungsten carbide coating (8) is coated on the outer surface of the silicon oxide coating (9), the carbon silicon coating (10) is coated on the inner surface of the silicon oxide coating (9), the tungsten carbide coating (8), the silicon oxide coating (9) and the carbon silicon coating (10) are uniformly sprayed on the outer surface of the cutting knife main body (2) by adopting a plasma spraying process, and the thickness of the wear-resistant protective coating (5) is 2 mm.
4. A multilayer coated protective cutting tool according to claim 1 wherein: titanium carbide, tantalum carbide and silicide are added into the tungsten carbide coating (8), wherein the mass ratio of the titanium carbide to the tantalum carbide to the silicide is 4: 3: 3.
5. a multilayer coated protective cutting tool according to claim 1 wherein: the titanium alloy plating layer (11) is coated on the outer surface of the aluminum alloy plating layer (12), the heat-resistant alloy plating layer (13) is coated on the inner surface of the aluminum alloy plating layer (12), the heat-resistant temperature of the alloy plating layer (6) is 500-600 ℃, and the strength of the alloy plating layer is 2-3 times that of the common alloy.
6. A multilayer coated protective cutting tool according to claim 1 wherein: the diamond protection layer (14) is coated on the outer surface of the hard alloy protection layer (15), the high-speed steel protection layer (16) is coated on the inner surface of the hard alloy protection layer (15), diamond particles and alloy powder are filled in the diamond protection layer (14), and a plurality of alloy mixtures are arranged in the hard alloy protection layer (15).
7. A multilayer coated protective cutting tool according to claim 1 wherein: the wear-resistant protective coating (5), the alloy coating (6) and the composite protective layer (7) are integrally formed by adopting a hot-pressing process.
8. A method for producing a multilayer coating protection type cutting tool is characterized by comprising the following production steps:
s1, cutting and forming, namely, making a cutting die according to the size of a product, selecting equipment according to the material, the hardness, the thickness and the size, and straightening the plate by using a straightening machine before heat treatment;
s2, according to the particularity of the cutter structure and the use requirement, the cutter needs to be subjected to quenching and tempering firstly when being subjected to heat treatment, wherein the quenching and tempering hardness is 28-32 HRC;
s3, after the semi-finish machining is finished, performing surface nitriding treatment, wherein the thickness of the nitriding layer is 0.4-0.6 mm, and the hardness is 600-750 HV;
s4, the hardness of the material is increased by the quenching and tempering process after heat treatment, so that the cutter has wear resistance, and the cutter is ensured not to deform after heat treatment to meet the requirement of design precision;
s5, the wool wheel driven by the high-speed motor is used to match with the blue or green wax to polish the surface of the wool wheel, and the wool wheel is used to open the edge of the wool wheel after the surface is polished and wax is removed.
CN202111053307.4A 2021-09-09 2021-09-09 Multilayer coating protection type cutting tool and production method thereof Pending CN113843424A (en)

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CN107636190A (en) * 2015-05-21 2018-01-26 瓦尔特公开股份有限公司 Cutter with multilayer electric arc PVD coatings
CN108291299A (en) * 2015-11-27 2018-07-17 塞梅孔公司 With diamond layer and hard material layer coated body
CN105401129A (en) * 2015-12-12 2016-03-16 河南广度超硬材料有限公司 Superhard composite coating and preparation method thereof
CN105506622A (en) * 2015-12-13 2016-04-20 河南广度超硬材料有限公司 Composite coating knife and manufacturing method thereof
CN107151786A (en) * 2017-06-06 2017-09-12 南京林业大学 A kind of soft or hard composite coating wood cutter and preparation method thereof
CN207695695U (en) * 2017-12-31 2018-08-07 南京隆尼精密机械有限公司 Flat drill mill
CN109023361A (en) * 2018-07-02 2018-12-18 东南大学 gradient coating cutter and preparation method thereof
TWM612504U (en) * 2020-10-27 2021-06-01 環宇真空科技股份有限公司 PCB cutter with high-temperature oxidation resistance composite coating

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Application publication date: 20211228