CN113211161B - Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface - Google Patents

Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface Download PDF

Info

Publication number
CN113211161B
CN113211161B CN202110391845.8A CN202110391845A CN113211161B CN 113211161 B CN113211161 B CN 113211161B CN 202110391845 A CN202110391845 A CN 202110391845A CN 113211161 B CN113211161 B CN 113211161B
Authority
CN
China
Prior art keywords
energy
diamond cutter
diamond
ozone
oxidizing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110391845.8A
Other languages
Chinese (zh)
Other versions
CN113211161A (en
Inventor
张鑫泉
孟义轩
任明俊
张哲�
朱利民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linding Optics Shanghai Co ltd
Original Assignee
Linding Optics Shanghai Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linding Optics Shanghai Co ltd filed Critical Linding Optics Shanghai Co ltd
Priority to CN202110391845.8A priority Critical patent/CN113211161B/en
Publication of CN113211161A publication Critical patent/CN113211161A/en
Application granted granted Critical
Publication of CN113211161B publication Critical patent/CN113211161B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine 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
    • 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
    • C23C8/06—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 using gases
    • C23C8/08—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 using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/12—Oxidising using elemental oxygen or ozone
    • 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
    • C23C8/06—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 using gases
    • C23C8/08—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 using gases only one element being applied
    • C23C8/10—Oxidising
    • C23C8/12—Oxidising using elemental oxygen or ozone
    • C23C8/14—Oxidising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

The invention relates to a method for inhibiting chemical wear of a diamond cutter on the surface of oxidized metal, which is characterized in that when the diamond cutter is subjected to ultra-precision processing, the oxidizing capability of an environmental medium in a processing area is increased by a multi-energy field auxiliary technology, and an oxide film is formed on the surface of the processing area; the multi-energy field auxiliary technology is used for increasing the forming rate and the thickness of an oxide film on the surface of a processing area by applying chemical energy or the energy of combination of optical energy and chemical energy on the periphery of the diamond cutter. The invention can inhibit the graphitization of the metal catalytic diamond cutter and reduce the chemical wear of the metal catalytic diamond cutter.

Description

Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface
Technical Field
The invention relates to the technical field of ultra-precision machining, in particular to a method and a device for inhibiting chemical abrasion of a diamond cutter on the surface of oxidized metal.
Background
Diamond tools have many unique physical and mechanical properties compared to other tools. However, its wider industrial application is strongly limited due to its severe chemical wear in the direct cutting of many important metals and alloys, especially steel. The short tool life is believed to be primarily caused by metal-catalyzed diamond graphitization due to the intimate contact between the carbon atoms on the diamond cutting edge and the metal atoms of the newly cut surface. In order to reduce chemical wear during diamond tool cutting, researchers have applied a variety of methods to reduce the rate of chemical reaction between carbon and metal atoms, including cryogenic cooling, tool surface modification, workpiece surface modification, and reduction of contact time, i.e., ultrasonic Vibration Cutting (UVC). Among these techniques, research into UVC is the most intensive and has been successfully adopted by the optical manufacturing industry. UVC, under appropriate cutting and vibration parameters, typically produces intermittent chip contact, reduced cutting forces, improved cutting dynamics, and enhanced physical penetration of air, as compared to continuous cutting.
Most metals are naturally oxidized to form oxide films after being exposed to the atmosphere, and because the metal is not filled with d-layer orbitals, the metal is easy to form strong chemical bonds with oxygen atoms with unpaired electrons, so that the metal oxide film with stable chemical properties is generated. Because the formation of the oxide film can form a barrier effect on the physical contact and surface chemical reaction between metal atoms and diamond carbon atoms, the research on the growth characteristic rule of the metal oxide film under different environmental energy fields is helpful for mastering the inhibition characteristic of the metal oxide film on the chemical abrasion of a cutter in the ultra-precision machining process and exploring the weakening and passivation mechanism of the oxide film on the catalytic effect of black metal in the diamond graphitization process.
A typical metal oxidation process starts with a thin layer of oxide due to the exchange of sites formed by the physical or chemical absorption of molecular oxygen at the fresh metal surface. The electric field mechanism will then dominate the further oxidation step, with a gradual reduction in the oxidation rate as the oxide thickness increases. According to the current prevailing metal oxidation mechanism, the oxide growth rate is described by the following kinetic equation:
Figure BDA0003017038080000011
wherein the content of the first and second substances,
Figure BDA0003017038080000012
representing the reaction rate coefficient, E is the activation energy of the oxidation reaction of the oxidizing species with the metal element, i.e., representing the tendency of the metal to form an oxide, and P represents the oxygen partial pressure, with high oxygen partial pressures being applicable to achieve higher oxide growth rates. As can be readily derived from the above equation, a smaller activation energy E will also result in an exponential increase in the oxide growth rate. Since E is determined by the chemical state of the metal and oxygen atoms, enhancing the oxidizing ability of oxygen by changing the chemical properties of oxygen is considered to be an effective way to lower the activation energy of the oxidation reaction and thereby further increase the oxide growth rate.
The formation of a metal oxide film is a surface chemical reaction that is a complex process: firstly, oxygen molecules are physically adsorbed on oxygen vacancies on the surface of metal atoms in the molecular collision process of the oxygen molecules and the metal surface, wherein part of oxygen atoms and the metal atoms are subjected to electron exchange to form chemical adsorption, and meanwhile, the covalent bonds of the oxygen molecules are destroyed to cause the oxygen molecules to be decomposed and fused into a metal matrix, and finally, a stable oxidation passive film consisting of metal oxides is formed. From the above kinetic equation, the oxide film formation rate is influenced by various environmental factors and physicochemical conditions such as the existing oxide film thickness, the interface oxygen partial pressure, the ambient temperature, the oxidation reaction activation energy, and the like. Therefore, it is necessary to grasp the dynamic characteristics of the metal oxide film growing under the environmental conditions of mutual conversion and deep fusion between multiple energy fields, study the law of the influence of the metal oxide film on the physicochemical properties of the surface of the freshly cut metal, and elucidate the synergistic catalytic effect of the multi-energy field coupling in the metal oxide film growing process, so as to find a method for more effectively inhibiting the chemical wear of the tool.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method and a device for inhibiting chemical wear of a diamond cutter by oxidizing the surface of metal, which can inhibit graphitization of the diamond cutter by metal catalysis and reduce the chemical wear of the diamond cutter.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for inhibiting chemical abrasion of the diamond cutter on the surface of oxidized metal is provided, when the diamond cutter is subjected to ultra-precise processing, the oxidizing capability of an environment medium in a processing area is increased through a multi-energy field auxiliary technology, and an oxide film is formed on the surface of the processing area; the multi-energy field auxiliary technology is used for increasing the forming rate and the thickness of an oxide film on the surface of a processing area by applying chemical energy or the energy of combination of optical energy and chemical energy on the periphery of the diamond cutter.
The step of applying chemical energy to the periphery of the diamond cutter refers to introducing strong-oxidizing-property cutting fluid hydrogen peroxide to increase the oxidizing capability of an environment medium in the ultraprecise machining process.
The application of the combined energy of optical energy and chemical energy on the periphery of the diamond cutter refers to the increase of the oxidation capacity of an environmental medium in the ultra-precision machining process through the increase of oxygen concentration and pressure and the in-situ distributed multiband ultraviolet-ultrasonic auxiliary cutting machining device.
When the diamond cutter is used for ultra-precision machining, the method further comprises the step of increasing the time of exposing the cutting surface to air through milling or ultrasonic vibration intermittent cutting.
When the diamond cutter is subjected to ultra-precision machining, a catalyst, plasma or ionization mode is adopted to promote the oxidation reaction of the metal surface.
When the diamond cutter is used for ultra-precise processing, the method also comprises the step of promoting the oxidation reaction by changing the environmental conditions and modifying the surface of the workpiece.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device for inhibiting the chemical wear of the diamond cutter on the surface of the oxidized metal comprises a clamp and the diamond cutter, wherein the clamp is used for positioning a workpiece, and a multi-energy field auxiliary structure is arranged between the diamond cutter and the workpiece and used for increasing the oxidizing capacity of an environment medium in a processing area so as to increase the speed and the thickness of an oxide film formed on the surface of the processing area; the multi-energy field auxiliary structure is a hydrogen peroxide auxiliary structure or an ultraviolet-ozone auxiliary structure.
The hydrogen peroxide auxiliary structure comprises a hydrogen peroxide drip irrigation injection device capable of controlling the flow rate of liquid and a redundant hydrogen peroxide collecting device; the hydrogen peroxide drip irrigation injection device is arranged between the diamond cutter and the workpiece and used for injecting hydrogen peroxide into the machining area in a drip irrigation mode, and the redundant hydrogen peroxide collecting device is used for collecting redundant hydrogen peroxide in the machining area.
The ultraviolet-ozone auxiliary structure comprises an ozone generator and an ultraviolet light device; the ozone generated by the ozone generator is sprayed to the processing area through the laminar flow nozzle; the ultraviolet light device comprises an ultraviolet light source and a focusing lens, wherein the focusing lens focuses ultraviolet light emitted by the ultraviolet light source on a processing position of the diamond cutter.
The ultraviolet-ozone auxiliary structure further comprises a waste gas collecting device and a waste gas dissociation device, wherein the waste gas collecting device is used for collecting redundant ozone, and the waste gas dissociation device is used for dissociating the collected redundant ozone.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention oxidizes the surface of the metal in a multi-energy field auxiliary processing mode and forms an oxide film to block the contact between the metal capable of catalyzing the graphitization of the diamond cutter and the diamond cutter, thereby inhibiting the graphitization of the metal catalyzed diamond cutter and reducing the chemical wear of the metal catalyzed diamond cutter.
Drawings
FIG. 1 is a schematic diagram of the process of the present invention;
FIG. 2 is a schematic view of an apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of another apparatus in an embodiment of the present invention;
FIG. 4 is a graph of the results of a tool wear test for cutting stainless steel at different cutting mileage;
FIG. 5 is a graph showing the results of an abrasion test of a tool for cutting stainless steel under different gas pressures;
FIG. 6 is a graph of the results of a tool wear test for cutting pure tungsten at different gas pressures;
FIG. 7 is a graph showing the profile of the rake face and the profile of the surface of a workpiece of a tool after pure tungsten is cut in different medium environments.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention can be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
The embodiment of the invention relates to a method for inhibiting chemical wear of a diamond cutter by oxidizing a metal surface, which is characterized in that when the diamond cutter is subjected to ultra-precise processing, the oxidizing capability of an environment medium in a processing area is increased by a multi-energy field auxiliary technology, and an oxide film is formed on the surface of the processing area; the multi-energy field auxiliary technology is used for increasing the forming rate and the thickness of an oxide film on the surface of a processing area by applying chemical energy or the energy of combination of optical energy and chemical energy on the periphery of the diamond cutter.
The introduction of the multi-energy field that promotes the formation of the oxide film on the metal surface may include optical energy, chemical energy, thermal energy, electrical energy, mechanical energy, and the like. The adopted method comprises changing processing mode such as high-speed milling or ultrasonic vibration interrupted cutting to increase the time of the cutting surface exposed in the air to promote the reaction of metal and oxidizing substances in an environment medium, adopting oxidizing liquid as cutting fluid or spraying oxidizing gas in a cutting area to promote the oxidation reaction of the metal surface to increase the thickness of the oxide film, introducing a light source such as ultraviolet or laser capable of promoting the oxidation reaction of the metal surface to accelerate the formation of the oxide film, changing the processing environment such as assisting electric field, plasma, catalyst or changing temperature to promote the oxidation reaction, changing the chemical property of the workpiece to promote the formation of the oxide film, and the like.
The process principle of the new method for inhibiting the chemical wear of the diamond cutter cutting process by oxidizing the metal surface is shown in figure 1, and it can be seen that, besides the periodic mechanical deformation and the oxide growth on the cutter-workpiece interface, the multi-wavelength ultraviolet irradiation can also generate stronger oxidizing gas, further increase the formation of metal oxide and generate a thicker oxide film on the metal surface. The metal oxide layer formed will prevent direct contact between the diamond tool and the active metal, thereby inhibiting the graphitization of the diamond catalyzed by the specific metal, ultimately reducing tool wear. Meanwhile, the intermittent cutting process of ultrasonic vibration can effectively promote the oxidizing gas to physically permeate into the vibration gap so as to strengthen the oxidation reaction between the active metal atoms and the oxidizing gas. Since metal oxides generally have a relatively weak chemical affinity for carbon compared to metals, the oxide formed at the tool-workpiece interface may be considered a physical passivation layer that inhibits the formation of metal-carbon complexes.
That is, compared with the conventional continuous cutting, the high-frequency intermittent cutting of the present embodiment has a significant advantage in suppressing tool wear because the high-frequency intermittent cutting enhances physical penetration of air, increases contact time of oxygen in the air with the cutting surface, and forms a thin oxide film on the machining surface. Meanwhile, the high-frequency intermittent cutting is beneficial to the better play of other introduced energy fields, so that the method can better play the effect when the high-frequency intermittent cutting is used. However, the conventional high-frequency intermittent cutting process only has atmospheric oxidation, physical penetration of air is enhanced through the high-frequency intermittent cutting, and a thin oxide film is formed on the processing surface and is very easy to break in the processing process, so that the diamond cutter and ferrous metal are in direct contact to generate chemical wear. The new method disclosed by the embodiment increases the oxidizing capability of the environment medium in the processing process through the multi-energy field effect, generates a thicker oxide film on the metal surface, and inhibits the direct contact between the diamond cutter and the ferrous metal. The methods of increasing the oxidizing ability of the auxiliary gas or liquid, increasing the oxidizing medium concentration, or increasing the oxidizing gas pressure all contribute to the increase in the oxide film formation rate and the oxide film thickness, and can contribute to the suppression of chemical wear of the diamond tool.
Based on the above method, the present embodiment provides an apparatus for experimental verification as shown in fig. 2. The device for inhibiting the chemical abrasion of the diamond cutter by the method comprises a workpiece 8, diamonds 5, a medium-enhanced oxidizing light source 2, a quartz focusing lens 4, an ultrasonic vibration generator 6, an oxidizing gas enrichment device 10, a strong oxidizing gas generation device 9, an exhaust gas collection device 1 and an exhaust gas dissociation device 3. Based on the device, four supply gases with different oxidizing capacities, including air, high-concentration oxygen, ozone/oxygen mixture and in-situ uv-treated ozone, were experimentally studied to generate highly reactive monatomic oxygen. Their effect on the growth rate of metal oxides and tool life in UVC of stainless steel and tungsten was investigated at different gas feed pressures and cutting distances. The results show that the oxidation ability of UV-ozone is highest and the wear rate of diamond tool is lowest compared to the other three gases. In addition, the increase in gas pressure also promotes the formation of metal oxides, thereby increasing the life of the diamond tool under all experimental conditions.
The device mainly utilizes the action of light energy and chemical energy in a multi-energy field, and increases the oxidizing capability of an environmental medium in the ultra-precision machining process by increasing the oxygen concentration and pressure and an in-situ distributed multi-band ultraviolet-ultrasonic auxiliary cutting machining device, thereby promoting the growth of an oxide film on the surface of the metal.
As a photosensitive oxidation process, ultraviolet-ozone (UV-O3) treatment significantly enhances the oxidizing ability of ambient gases using multi-wavelength ultraviolet radiation. First, by using ultraviolet ray λ having a shorter wavelength 1 Irradiating, possibly from atmospheric oxygen O 2 To generate ozone. Then, by absorbing ultraviolet ray λ having a relatively long wavelength 2 Can be decomposed into molecular oxygen O 2 And highly reactive monatomic oxygen O. Such a process can be described by the following equation:
Figure BDA0003017038080000051
the oxidizing power of a molecule or atom is determined by its ability to acquire electrons, which refers to the energy that needs to be released to acquire electrons, and the magnitude of this ability can be described by electron affinity. A higher electron affinity generally results in a stronger ability to acquire electrons, i.e. a stronger oxidizing ability. Monatomic oxygen is known to have a significantly higher electron affinity (1.461 e V) than ozone per atom (0.701 e V) and oxygen per atom (0.276 e V), so monatomic oxygen has a highly reactive chemistry and reacts with O 3 And O 2 Compared with its strongest oxidizing power.
To achieve UV-O of the cutting zone in ultrasonic vibration cutting 3 In-situ treatment, two different wavelengths of ultraviolet light are used. First, lambda is generated by a low-pressure mercury lamp 1 Uv light of =185nm to generate ozone from the high concentration of oxygen generated by the oxygen concentrator. The real-time concentrations of oxygen and ozone are monitored by respective gas sensors. Then, the mixture of ozone and oxygen is supplied to the cutting zone through a laminar flow nozzle, wherein lambda 2 =265nm ultraviolet light generated by an ultraviolet Light Emitting Diode (LED) was focused on the diamond tip using a custom quartz lens. In this case, cutOzone around the cutting zone is decomposed into dioxygen and highly reactive monatomic oxygen, thereby greatly enhancing the oxidizing ability thereof. Since high concentrations of ozone are harmful to health, additional ozone is collected by an exhaust stack and then discharged to a waste gas stream composed of ferrous chloride (FeCl) 2 ) Ozone dissociator to prevent air pollution. Ferrous chloride is a commonly used strong reducing agent without pollution and is used for decomposing ozone. Since an acidic environment favors such redox reactions, dilute hydrochloric acid (HCl) solution is used to provide the desired acidic environment for such redox reactions:
2FeCL 2 +2HCL+O 3 →2FeCL 3 +H 2 O+O 2
in order to verify the effect of the present embodiment, stainless steel and tungsten were selected for tool wear tests at different cutting mileage and air injection pressure, and the flank wear width VB and the wear length L were selected as evaluation indexes of tool wear, and the results are shown in fig. 4 to 6. It can be seen that both for stainless steel and tungsten, the gas oxidation is enhanced (oxidative O)>O3>O2>Air) the degree of wear of the tool becomes smaller and smaller under the same machining conditions. In addition, as the gas pressure increases, the degree of wear of the tool decreases. The difference in the machined workpiece surface quality and the tool rake surface topography also verifies the difference in the degree of tool wear, as shown in fig. 7. It can be seen that in UV-O 3 In the case of the auxiliary ultrasonic vibration machining, the surface quality of the workpiece is far better than that of the workpiece machined only by the ultrasonic vibration. Thus, the experimental results demonstrate the effectiveness of the present embodiment.
The other feasible method for oxidizing the metal surface to inhibit the chemical abrasion of the diamond cutter in the ultra-precision machining process mainly utilizes the action of chemical energy in a multi-energy field, and increases the oxidizing capability of an environmental medium in the ultra-precision machining process by introducing strong oxidizing cutting fluid hydrogen peroxide, so that the growth of an oxide film on the metal surface is promoted. Due to the strong oxidizing property of the hydrogen peroxide, the machine tool is easily polluted, so that the flow of the cutting fluid needs to be strictly controlled when the cutting fluid is used for auxiliary processing, and a storage device is needed to collect the redundant hydrogen peroxide so as to prevent the hydrogen peroxide from splashing to oxidize the surface of the machine tool.
Based on the idea of enhancing the oxidizing ability of the cutting fluid to promote the formation of the oxide film on the metal surface, the invention also provides another experimental device, as shown in fig. 3. The device comprises a workpiece 8, a diamond 5, a hydrogen peroxide drip irrigation injection device 11 capable of controlling the flow rate of liquid, an excessive hydrogen peroxide collecting device 12 and an ultrasonic vibration generator 6. Based on the device, the influence of different drip irrigation flow rates and different hydrogen peroxide concentrations on the abrasion of the diamond cutter is researched through experiments, and the result shows that the oxidation capacity can be improved by increasing the liquid flow rate and the hydrogen peroxide concentration, and the abrasion of the cutter is also minimum. Therefore, the experimental result also shows that the oxidation of the cutting fluid is enhanced to help to inhibit the chemical wear of the diamond cutter, and the effectiveness of the new method for inhibiting the chemical wear of the diamond cutter in the cutting process by oxidizing the ferrous metal surface is verified.

Claims (9)

1. A method for inhibiting chemical abrasion of a diamond cutter on the surface of oxidized metal is characterized in that when the diamond cutter is subjected to ultra-precision machining, the oxidizing capability of an environment medium in a machining area is increased through a multi-energy field auxiliary technology, and an oxide film is formed on the surface of the machining area; the multi-energy field auxiliary technology is that chemical energy or energy combining optical energy and chemical energy is applied to the periphery of the diamond cutter to increase the forming rate and the thickness of an oxide film on the surface of a processing area;
the multi-energy field auxiliary technology is used for carrying out oxidation treatment on a workpiece area which is being processed by the diamond cutter;
when the diamond cutter is used for ultraprecise processing, a processing mode of ultrasonic vibration interrupted cutting is adopted;
the realization mode of the combined energy of the light energy and the chemical energy comprises the following steps:
using a wavelength of λ 1 Irradiating the atmosphere with ultraviolet rays to make oxygen O in the atmosphere 2 Generating ozone;
using a wavelength of λ 2 The ultraviolet rays irradiate the ozone to generate high-activity monatomic oxygen O;
wherein λ is 1 <240nm，λ 2 >240nm。
2. The method for inhibiting chemical wear of a diamond cutter according to claim 1, wherein the step of applying chemical energy to the periphery of the diamond cutter is to introduce a cutting fluid hydrogen peroxide with strong oxidizing property to increase the oxidizing capability of an environmental medium in the ultra-precision machining process.
3. The method for inhibiting chemical wear of a diamond tool with an oxidized metal surface according to claim 1, wherein the applying of the combined optical energy and chemical energy at the periphery of the diamond tool is to increase the oxidizing power of an environmental medium during ultra-precision machining by increasing oxygen concentration and pressure and an in-situ distributed multiband ultraviolet-ultrasonic auxiliary cutting machining device.
4. A method of inhibiting chemical wear of a diamond tool by oxidizing a metal surface according to any one of claims 1-3, further comprising using a catalyst, plasma or ionization to promote oxidation of the metal surface during ultra-precision machining of the diamond tool.
5. A method of inhibiting chemical wear of a diamond tool according to any one of claims 1-3, wherein the diamond tool is subjected to ultra-precision machining, further comprising promoting the oxidation reaction by changing environmental conditions and workpiece surface modification.
6. An apparatus for inhibiting chemical wear of a diamond tool by oxidizing a metal surface, the apparatus being used to implement the method for inhibiting chemical wear of a diamond tool by oxidizing a metal surface according to any one of claims 1 to 5; the multi-energy field auxiliary structure is arranged between the diamond cutter and the workpiece, and the multi-energy field auxiliary structure increases the oxidizing capability of an environment medium in a processing area so as to increase the speed and the thickness of an oxide film formed on the surface of the processing area; the multi-energy field auxiliary structure is a hydrogen peroxide auxiliary structure or an ultraviolet-ozone auxiliary structure.
7. The device for inhibiting chemical wear of the diamond cutter on the surface of the oxidized metal according to claim 6, wherein the hydrogen peroxide auxiliary structure comprises a hydrogen peroxide drip irrigation injection device capable of controlling the flow rate of liquid and an excessive hydrogen peroxide collection device; the hydrogen peroxide drip irrigation injection device is arranged between the diamond cutter and the workpiece and used for injecting hydrogen peroxide into a machining area in a drip irrigation mode, and the redundant hydrogen peroxide collecting device is used for collecting redundant hydrogen peroxide in the machining area.
8. The apparatus for inhibiting chemical wear of diamond tooling as set forth in claim 6 wherein said ultraviolet-ozone assist structure comprises an ozone generator and an ultraviolet light device; the ozone generated by the ozone generator is sprayed to the processing area through the laminar flow nozzle; the ultraviolet light device comprises an ultraviolet light source and a focusing lens, wherein the focusing lens focuses ultraviolet light emitted by the ultraviolet light source on a processing position of the diamond cutter.
9. The apparatus for inhibiting chemical wear of a diamond cutter according to claim 8, wherein the uv-ozone auxiliary structure further comprises an exhaust gas collecting means for collecting excess ozone and an exhaust gas dissociating means for dissociating the collected excess ozone.
CN202110391845.8A 2021-04-13 2021-04-13 Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface Active CN113211161B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110391845.8A CN113211161B (en) 2021-04-13 2021-04-13 Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110391845.8A CN113211161B (en) 2021-04-13 2021-04-13 Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface

Publications (2)

Publication Number Publication Date
CN113211161A CN113211161A (en) 2021-08-06
CN113211161B true CN113211161B (en) 2023-03-31

Family

ID=77087393

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110391845.8A Active CN113211161B (en) 2021-04-13 2021-04-13 Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface

Country Status (1)

Country Link
CN (1) CN113211161B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2098126A1 (en) * 2008-03-03 2009-09-09 Nestec S.A. Carbohydrate Bar
US8212087B2 (en) * 2008-04-30 2012-07-03 Xyleco, Inc. Processing biomass
CN102059349B (en) * 2010-11-18 2012-07-25 哈尔滨工业大学 Processing method for ultraprecise turning of die steel material by adopting diamond cutter
CN107363552B (en) * 2017-07-04 2019-04-02 南京航空航天大学 A kind of induced with laser oxidation assist turning machining device and its method
CN112589261B (en) * 2020-11-03 2022-01-11 华中科技大学 Device and method for monitoring multi-energy field assisted ultrashort pulse laser processing process

Also Published As

Publication number Publication date
CN113211161A (en) 2021-08-06

Similar Documents

Publication Publication Date Title
Maurino et al. Sustained production of H 2 O 2 on irradiated TiO 2–fluoride systems
Deng et al. Enhanced synergistic performance of nano-Fe0-CeO2 composites for the degradation of diclofenac in DBD plasma
EP1079003B1 (en) Electrolytic machining method and apparatus
Rumbach et al. Electrochemical production of oxalate and formate from CO2 by solvated electrons produced using an atmospheric-pressure plasma
WO2000009258A1 (en) Method and apparatus for treating waste gas containing fluorochemical
Nyamukamba et al. Plasmonic metal decorated titanium dioxide thin films for enhanced photodegradation of organic contaminants
EP2578301B1 (en) Decomposition/elimination method using a photocatalytic material
CN113211161B (en) Method and device for inhibiting chemical abrasion of diamond cutter on oxidized metal surface
CN103030244B (en) Combined pretreatment method for industrial wastewater
KR100852496B1 (en) Method of preparation for titania photo-catalyst by oxygen plasma and rapid thermal annealing
JP2888185B2 (en) UV oxidation equipment
Parekh et al. Surface functionalization of multiwalled carbon nanotubes with UV and vacuum UV photo-oxidation
JP4214221B2 (en) Method for removing nitrogen oxides by photoreaction
Ovcharov et al. Photocatalytic activation of carbon monoxide on semiconductors and derived nanocomposites: Basic principles and mechanisms: A review
JP2006272034A (en) Contamination gas treatment device and method using photocatalyst
Jiménez-López et al. Water ozone decomposition in graphitic and graphene based catalytic materials: Kinetics of catalyst deactivation
JP3732795B2 (en) Exhaust gas denitration equipment
KR101455048B1 (en) Non-biodegradable materials removing installation and non-biodegradable materials removing method using the same
US9822025B2 (en) Method for treating soil-contaminating water using photocatalytic material
KR102394099B1 (en) Plasma system for removal of nitrogen oxides
JP5499489B2 (en) NOx-containing exhaust gas treatment apparatus and NOx-containing exhaust gas treatment method
CN110804743A (en) Dehydroxyreduction method of p-hydroxyphenylthiophenol
JP2010099625A (en) Microreactor for reducing and detoxifying hardly decomposable organic compound
JPS63305922A (en) Method for treating waste ozone
KR20000065318A (en) Process for preventing air pollution by using ultraviolet ray

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant