CN114472947B - Ultra-high temperature resistant cutting tool based on metal ceramic - Google Patents
Ultra-high temperature resistant cutting tool based on metal ceramic Download PDFInfo
- Publication number
- CN114472947B CN114472947B CN202210281403.2A CN202210281403A CN114472947B CN 114472947 B CN114472947 B CN 114472947B CN 202210281403 A CN202210281403 A CN 202210281403A CN 114472947 B CN114472947 B CN 114472947B
- Authority
- CN
- China
- Prior art keywords
- cutting
- layer
- coating
- cutter
- bonding layer
- 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
Links
Images
Classifications
-
- 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
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
Abstract
The invention relates to an ultrahigh temperature resistant cutting tool based on metal ceramic, which comprises a tool body and a plurality of cutting teeth on one surface of the tool body; the surfaces of the cutter body and the cutting teeth are covered with a plurality of coating layers; the coating layer comprises a first bonding layer, a second bonding layer and an outer coating layer; wherein the first bonding layer is mainly used as a base reinforcement and improves the bonding degree of the rest coating layers, and the second bonding layer is used for further improving the surface hardness of the cutter; the outer coating is used for enhancing the heat conducting performance during cutting and improving the oxidation resistance of the surface, and further comprises the step of carrying out laser shock strengthening on the cutting edge area of the cutter, so that the continuous service life of the cutting edge is prolonged.
Description
Technical Field
The invention relates to the field of processing equipment. In particular to an ultrahigh temperature resistant cutting tool based on metal ceramics.
Background
With the increasing requirements of yield and quality, the modern manufacturing industry has higher and higher requirements on manufacturing equipment for machining and cutting. The requirements for the performance of the cutting tool are also increasing, including wear resistance, thermal stability, oxidation resistance, etc. of the cutting tool. Thus, various types of coated cemented carbide tools and solutions for producing such tools have been proposed and applied in succession. The method comprises the steps of carrying out multi-coating, composite coating and the like on various nano material composite structures, and is used for improving the physical property and the chemical property of the cutter.
Referring to the related published technical scheme, the technical scheme with the publication number of CN101746101B provides a soft-hard composite coating cutter and a preparation method thereof, and the cutter adopts a medium-frequency magnetron deposition and multi-arc ion plating method to prepare MoS 2 The ZrN composite coating cutter is used for reducing the friction coefficient of the cutter and improving the hardness of the cutter; the technical scheme of the publication number CN215919184 proposes a milling cutter comprising a waterproof layer, a high temperature resistant layer, an anti-corrosion layer, a wear-resistant layer, a first protective layer and a second protective layer, and is used for prolonging the processing service life of the milling cutter; the technical proposal of the publication number WO2020015862A1 provides a forming hob, which increases the wear resistance and machining precision during machining by designing the angle of the cutting edge and arranging a wear-resistant coating on the cutting edge. The technical scheme has room for improving the current processing of high-hardness materials, including further improving the heat resistance of the cutter, thereby realizing higher processing speed and reducing mechanical failure of the cutter caused by overheating.
Disclosure of Invention
The invention aims to provide an ultrahigh temperature resistant cutting tool based on metal ceramics, which comprises a tool body and a plurality of cutting teeth on one surface of the tool body; the surfaces of the cutter body and the cutting teeth are covered with a plurality of coating layers; the coating layer comprises a first bonding layer, a second bonding layer and an outer coating layer; wherein the first bonding layer is mainly used as a foundation reinforcement and improves the bonding degree of the rest coating layers, and the second bonding layer is used for further improving the surface hardness of the cutter; the outer coating is used for enhancing the heat conducting performance during cutting and improving the oxidation resistance of the surface, and further comprises the step of carrying out laser shock strengthening on a cutting edge area of the cutter so as to improve the continuous service life of the cutting edge.
The invention adopts the following technical scheme:
a cermet-based ultra-high temperature resistant cutting tool, the tool comprising a body and a plurality of cutting teeth on a surface of the body; the cutter body and the cutting teeth are of an integrated structure; coating the surfaces of the cutter body and the cutting teeth with a coating layer; the coating layer is manufactured by a multilayer coating process and comprises a first bonding layer, a second bonding layer and an outer coating layer;
the first bonding layer is made of a TiAlCrN composite metal ceramic material, wherein the chemical composition expression of the material is Ti x Al y Cr 1-x-y N, wherein x is the atomic ratio of Ti element of the composite metal ceramic material, y is the atomic ratio of Al element of the composite metal ceramic material, and x is more than or equal to 0.5 and less than or equal to 0.6, and y is more than or equal to 0.25 and less than or equal to 0.35;
the second bonding layer is made of TiCN;
the material of the outer coating is Al 2 O 3 And graphene;
wherein, the extending range of the envelope line of the cutting tooth to the parts of the front cutter face, the side edge rear cutter face and the top edge rear cutter face of the cutting tooth is set as a cutter edge strengthening area; the blade strengthening region extends into the rake face by an envelope of the cutting tooth by a distance m, wherein:
m＝P 1 ·h ig formula 1;
in the formula 1, P 1 A rake face elongation coefficient, preferably 0.08 to 0.1; h is a total of ig The tooth root is high;
and a distance v extending into the flank relief surface and the top flank relief surface with the envelope line of the cutting tooth, wherein:
v＝P 2 k, formula 2;
in the formula 2, P 2 The preferred value is 0.18 to 0.2 for flank face elongation coefficient; k is the back shoveling amount of the cutter;
optionally, the base materials of the cutter body and the cutting teeth of the cutter are high-speed steel;
the coating layer is sequentially the bonding layer and the outer coating layer from inside to outside;
optionally, the thickness of the first bonding layer is T1, and the coating thickness of the first bonding layer on the whole outer surface of the cutter is the same; wherein the value range of T1 is 5-8 μm;
the thickness of the second bonding layer on the front cutter face of the cutting tooth is T2, and the thickness of the second bonding layer on the flank cutter face and the top cutter face is T2; wherein T2 has a thickness of 6 μm to 10 μm; t2 has a thickness of 2 to 5 μm;
the thickness of the outer coating on the front cutter face of the cutting tooth is T3, and the thickness of the outer coating on the flank cutter face and the top cutter face is T3; wherein T3 has a thickness of 2 μm to 5 μm; t3 has a thickness of 6 to 10 μm;
and the transition of the first bonding layer, the second bonding layer and the outer coating layer between any two surfaces of the cutting tooth is a continuous connection transition;
optionally, the overcoat surface further comprises an absorber layer; the coating material of the absorption layer is one of TiN, tiCN and TiAlN; the thickness of the absorption layer is 5 to 10 μm; the absorption layer is used as an energy absorption coating in a laser shock peening process;
further, the manufacturing process of the cutter comprises the steps of performing laser shock peening on the cutter after the coating of the coating layer is finished; the edge strengthening region is used as an indication range of the laser shock strengthening process.
The beneficial effects obtained by the invention are as follows:
1. the ultrahigh temperature resistant cutting tool comprises a first bonding layer made of metal ceramic materials, and the first bonding layer is used as a primary reinforcing layer to effectively improve the overall hardness of the cutting tool and the adhesion performance of subsequent coatings;
2. the outer coating of the ultrahigh temperature resistant cutting tool disclosed by the invention comprises an alumina material added with graphene, so that the heat conductivity of high heat in high-speed cutting is effectively enhanced, the service life of the tool is prolonged, and the continuous cutting time is prolonged;
3. the ultrahigh temperature resistant cutting tool disclosed by the invention has the advantages that the hardness of the cutting edge and the surrounding area is further enhanced by adopting a laser shock peening process, and the cutting performance of the cutting tool in cutting of high-hardness materials is effectively improved.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic view of the various coatings of the tool of the present invention;
FIG. 2 is a microscopic view of a TiAlCrN composite cermet material of the first bonding layer according to the present invention;
FIG. 3 is a schematic view of a cutting tool in one embodiment of the present invention;
FIG. 4 is a schematic view of a cutting tooth rake surface in one embodiment of the present invention;
FIG. 5 is a microscopic view of a cutting edge after laser shock peening in an embodiment of the present invention.
Reference numerals in the drawings indicate: 100-a cutter body; 101-a cutting tooth; 110-a first tie layer; 120-a second tie layer; 130-an overcoat layer; 201-a rake face; 202-top edge relief; 203-flank relief; 301-edge envelope; 302-edge strengthening zone.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or assembly referred to must have a specific orientation.
The first embodiment is as follows:
a cermet-based ultra high temperature resistant cutting tool comprising a body and a plurality of cutting teeth on a surface of the body; the cutter body and the cutting teeth are of an integrated structure; coating the surfaces of the cutter body and the cutting teeth with a coating layer; the coating layer is manufactured by a multilayer coating process and comprises a first bonding layer, a second bonding layer and an outer coating layer;
the first bonding layer is made of a TiAlCrN composite metal ceramic material, wherein the chemical composition expression of the material is Ti x Al y Cr 1-x-y N, where x is the atomic ratio of the Ti element in the composite cermet material and y is that of the composite cermet materialThe atomic ratio of Al element satisfies x is more than or equal to 0.5 and less than or equal to 0.6, and y is more than or equal to 0.25 and less than or equal to 0.35;
the second bonding layer is made of TiCN;
the material of the outer coating is Al 2 O 3 And graphene;
wherein, the extending range of the envelope line of the cutting tooth to the parts of the rake face, the flank face and the top flank face of the cutting tooth is set as a blade strengthening area; the blade edge reinforcement region extends into the rake face by an envelope of the cutting tooth by a distance m, wherein:
m＝P 1 ·h ig formula 1;
in formula 1, P 1 The elongation coefficient of the rake face is in the range of 0.08 to 0.1; h is ig The tooth root is high;
and a distance v extending into the flank face and the top flank face with an envelope line of the cutting tooth, wherein:
v＝P 2 k, formula 2;
in formula 2, P 2 The elongation coefficient of the flank face is in the range of 0.18 to 0.2; k is the back shoveling amount of the cutter;
optionally, the base materials of the cutter body and the cutting teeth of the cutter are high-speed steel;
the coating layer is sequentially the bonding layer and the outer coating layer from inside to outside;
optionally, the thickness of the first bonding layer is T1, and the coating thickness of the first bonding layer on the whole outer surface of the cutter is the same; wherein the value range of T1 is 5-8 μm;
the thickness of the second bonding layer on the front cutter face of the cutting tooth is T2, and the thickness of the second bonding layer on the flank cutter face and the top cutter face is T2; wherein T2 has a thickness of 6 μm to 10 μm; t2 has a thickness of 2 to 5 μm;
the thickness of the outer coating on the front cutter face of the cutting tooth is T3, and the thickness of the outer coating on the flank cutter face and the top cutter face is T3; wherein T3 has a thickness of 2 μm to 5 μm; t3 has a thickness of 6 to 10 μm;
and the transition of the first bonding layer, the second bonding layer and the outer coating layer between any two surfaces of the cutting tooth is a continuous connection transition;
optionally, the overcoat surface further comprises an absorber layer; the coating material of the absorption layer is one of TiN, tiCN and TiAlN; the thickness of the absorption layer is 5 to 10 μm; the absorption layer is used as a coating for absorbing energy in a laser shock peening process;
further, the manufacturing process of the cutter comprises the steps of performing laser shock peening on the cutter after the coating of the coating layer is finished; the blade strengthening area is used as an indication range of a laser shock strengthening process;
furthermore, the base materials of the cutter body and the cutting teeth of the cutter are high-speed steel; the selected high-speed steel material is W6Mo5Cr4V2, the material is tungsten-molybdenum general high-speed steel, and the carbide of the material is fine and uniform, high in toughness and good in thermoplasticity; and it is required to satisfy the following heat treatment process:
quenching heat treatment at 1.730-840 ℃;
2.1210-1230 deg.c (salt bath furnace);
tempering for 2 times at the temperature of 3.540-560 ℃ and 2 hours each time;
finally, the standard hardness of the cutter body reaches 64HRC;
further, as shown in fig. 2, the view is a microscopic view of the TiAlCrN material; the TiAlCrN composite metal ceramic material of the first bonding layer has higher hardness and lower elastic modulus, so that the coating has better mechanical property, and the surface hardness of the first bonding layer is about 34Gpa after the first bonding layer is coated; meanwhile, the bonding force between the cutting tool body and the cutting tool body is up to HF 1-HF 2 of German standard VDI3198, so that the subsequent coating bonding is facilitated, and the integral surface hardness of the cutting tool is preliminarily improved;
further, the TiCN material of the second bonding layer is a metal ceramic material, and the atomic ratio of the TiCN material is optionally TiC 0.5 N 0.5 Or TiC 0.3 N 0.7 (ii) a The TiCN material is used as the second bonding layer, and the thickness of the TiCN material is controlled to be 500-700 mu m, so that the whole surface of the cutter body can be effectively improvedHardness and wear resistance of (a); however, the brittleness and the easy oxidation of the TiCN material make the TiCN material easy to peel and oxidize and wear due to high temperature and repeated impact during the high-speed cutting process;
further, al is used 2 O 3 And graphene as the outer coating; the Al is 2 O 3 And graphene comprising 50% of Al 2 O 3 7% of alumina-coated graphene, 42% of TiC, the remainder being a compound consisting of a trace of Ni and Mo, the sum of the percentages by weight of the materials being 100%; the second bonding layer can further enhance the surface toughness of the cutter body, and Al 2 O 3 When the coating is used as a coating, the oxidation resistance of the cutting surface of the cutting tooth can be effectively improved; due to the addition of the graphene material, the heat conductivity of the material is greatly superior to that of the material which is not added, so that the high temperature and heat accumulation effect generated in cutting are effectively relieved; meanwhile, the second bonding layer spontaneously forms a lubricating layer on the surface of the cutting tooth along with the cutting motion in the cutting process, so that the friction coefficient in the cutting process is effectively reduced, and the high heat generated by friction is relatively reduced;
further, the step of coating the first bonding layer on the cutter body comprises the following manufacturing process:
s1: pretreating the cutter body, namely degreasing and cleaning the cutter body by using ultrasonic equipment, removing an oxide layer on the surface of the cutter body through a sand blasting procedure, and roughening the surface of the cutter body; finally, completely drying the surface of the cutter body;
s2: clamping the cutter body, and placing the cutter body into a processing chamber;
wherein the process chamber requires a vacuum of up to 5.2 x 10 -3 Pa; then introducing argon into the treatment chamber, and heating the cutter body to 350-400 ℃ when the current air pressure of the treatment chamber is in the range of 0.35-0.45 Pa;
s3: adjusting the pressure of a processing chamber to be within 0.15-0.2 Pa, controlling the set direct-current bias voltage of a cutter to be within-100-150V, the pulse bias voltage to be within-650-800V and the set current to be 120A under the protection atmosphere of argon gas to generate plasma flow, and carrying out plasma bombardment on the surface of the cutter body for 35 minutes;
s4: under the protection of argon gas with the pressure of 0.1Pa, heating the Cr cast ingot by using hot cathode ion column arc with the current of 180A to evaporate the Cr cast ingot, and plating the surface of the tool for 6 minutes to form a Cr adhesion layer on the surface of the tool; then introducing mixed gas of argon and nitrogen with the flow ratio of 1;
s5: introducing mixed gas of argon and nitrogen into a treatment chamber according to a flow ratio of 1;
the first bonding layer manufactured by the power sputtering process comprises a Cr adhesion layer, a CrN transition layer and a (Ti, al, cr) N coating; the Cr adhesion layer has good compatibility with the cutter body, has good diffusivity, and can effectively improve the binding force between the coating and the cutter body; the CrN transition layer can reduce the difference of the thermal expansion coefficients between the Cr adhesion layer and the (Ti, al, cr) N coating, reduce the stress among all layers and ensure that the coating obtains higher strength; the (Ti, al, cr) N coating has higher hardness and lower elastic modulus, so that the coating has better mechanical property; according to experimental results, after the first adhesive layer is finished, the hardness of the first adhesive layer is more than 34Gpa, the first adhesive layer has better wear resistance, and the bonding force grade of the first adhesive layer and a cutter body can reach the HF1 or HF2 grade of the VDI3198 standard, so that the first adhesive layer is obviously beneficial to coating of a subsequent coating;
subsequently, the application of the second bonding layer, the overcoat layer, and the absorber layer is accomplished using a conventional chemical deposition process or a physical deep deposition process.
Example two:
this embodiment should be understood to include at least all of the features of any of the foregoing embodiments and further modifications thereon;
as shown in fig. 3, the cermet-based ultrahigh temperature resistant cutting tool in this embodiment is a hobbing tool for high-speed gear machining; a hobbing cutter is generally used in a rough machining process of gear machining;
as shown in fig. 1, the first adhesive layer having a thickness T1 is uniformly coated on the rake face, the flank face and the top flank face of the cutting tooth; during the cutting process of the cutting surface, the rake face of the cutting surface is used as a main impact surface and a contact surface, and the outer coating layer is coated to be thinner than the second bonding layer, namely T3< T2; on the other hand, on the flank of the cutting tooth, which does not directly participate in the shearing action in cutting, the overcoat layer is applied thicker than the second bonding layer, i.e., t3> t2;
through actual machining experiments, the following data were measured, and it can be seen from the following table that the cutting teeth based on the above settings perform better due to the properties of the coating layer, enabling a tool with a longer service life and faster cutting machining efficiency:
processing a gear material: 40Cr in the mixed solution, and the mixed solution,
modulus: 2.5,
pressure angle: at an angle of 20 degrees,
the rotational speed of the hobbing cutter: at a speed of 300rpm for the first time,
feeding amount: 2mm/r of the total weight of the alloy,
auxiliary conditions are as follows: the conventional heat dissipation, the dry cutting,
observing the number of the processed gears of all the test samples before abnormal cutting:
and observing the surfaces of the test samples after continuously machining a large number of gears, and if the thickness of the overcoat on the rake face is smaller than that of the rake face after the abrasion of the overcoat on the rake face, easily allowing spalling or chipping to progress from the rake face to the rake face; this can be avoided for the outer coating thickness of the flank face being greater than the outer coating thickness of the rake face;
and further, it is desirable that the first bond layer, the second bond layer, and the outer coating are continuous transitions in successive portions of each cutting face of the cutting tooth, i.e., edge portions of the cutting tooth envelope;
through the setting, the total coating thickness of the coated cutter can be in the processing tolerance range, the edge part enveloped by the cutting teeth is kept sharp and does not have an arc, and the increase of the resistance of cutting processing is effectively inhibited; the plurality of coating layers of the coating layer may each substantially exhibit inherent film properties on the rake and flank surfaces of the plurality of cutting teeth; in addition, the second bonding layer and the outer coating layer are continuously formed and kept sharp at the edge position of the cutting edge, and abnormal chips can be avoided from being generated at the edge part of the cutting edge during cutting operation.
Example three:
this embodiment should be understood to include at least all of the features of any of the foregoing embodiments and further modifications thereon;
further, the method comprises the step of performing surface treatment on the cutting edges and the cutting surfaces around the cutting edges in a plurality of cutting teeth of the cutter through a laser shock strengthening process so as to further improve the cutting service life of the cutter and obtain higher cutting speed or longer continuous service time; the laser shock strengthening process utilizes plasma shock waves generated by strong laser beams and acts on the surface of the metal; during the scanning of the metal surface, local plasma is formed on the metal surface through short-time and high-intensity laser pulses, so that shock waves are generated and transmitted into a processed metal body; after the shock wave is treated, the surface hardness, toughness and residual stress level of the metal body can be obviously increased, so that the fatigue resistance, wear resistance and corrosion resistance of the cutter are effectively improved;
on the other hand, since the time required for the laser shock peening step is long, the portion of the cutting tooth that is mainly applied to the workpiece during cutting is mainly the tooth surface envelope of the cutting tooth, and a rake face, a flank face, a top flank face adjacent to the envelope; the rest parts, such as the cutter tooth root, the chip groove and the like, are protected by the plurality of composite coatings, so that the time of a laser shock strengthening process can be saved; as shown in the above mentioned formulas 1 and 2, the range of the laser shock peening process is limited according to the specific size of the tool, and clear processing requirements are provided for processing personnel;
optionally, the laser energy density of the laser shock peening device is set to be in a range of 1 to 1.6J/mm 2 The wavelength range of the laser is 950 to 1050nm; the upper limit of the average power is 15W, and the lower limit is 12W; peak power density of 6.5GW/mm 2 ；
Furthermore, when the laser shock peening process is carried out, an absorption layer is generally needed to protect the workpiece from being burnt by laser and enhance the absorption of laser energy, and common coating materials comprise black paint, aluminum foil and the like; in this embodiment, the absorption layer is made of one of TiN, tiCN, and TiAlN; the above materials are adopted because the coating treatment of the absorption layer can be further continuously carried out when the treatment of the outer coating is carried out, and the operation of independently arranging painting or applying aluminum foil is not needed, so that the process difficulty and the conversion time are saved;
and the optimal thickness of the absorption layer is measured by experiments to be in the range of 5-10 μm; when the thickness is less than 5 mu m, the second coating can be thinned in the laser shock peening process; when the thickness is more than 10 mu m, the strengthening effect is not obvious, and the effect on the service life of the cutter is weak;
further, after the laser shock peening working procedure is completed, post-processing is carried out on the surface of the cutter; preferably the post-treatment procedure is sand blasting; the process parameters of sand blasting are as follows: the moving speed of the spray gun is 60mm/s, the concentration of the sand slurry is 15-20%, the granularity of the sand material is 320 meshes, the air pressure of the spray gun is 1.5bar, the output pressure of the sand slurry is 1.2bar, and the whole surface of the cutter is uniformly subjected to sand blasting;
as can be seen from the microscopic observation chart shown in the attached figure 5, after the laser shock peening process is completed, the overall crystal density of the cutting edge is more compact and orderly arranged, and the stress relief effect is obvious.
In the above embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described or recited in any embodiment.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that these examples are illustrative only and are not intended to limit the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (6)
1. A cermet-based ultra high temperature resistant cutting tool comprising a body and a plurality of cutting teeth on one face of the body; the cutter body and the cutting teeth are of an integrated structure; coating the surfaces of the cutter body and the cutting teeth with coating layers; the coating layer is manufactured by a multilayer coating process and comprises a first bonding layer, a second bonding layer and an outer coating layer;
the first bonding layer is made of a TiAlCrN composite metal ceramic material, wherein the chemical composition expression of the material is
Wherein x is the atomic ratio of Ti element of the composite metal ceramic material, y is the atomic ratio of Al element of the composite metal ceramic material, and x is more than or equal to 0.5 and less than or equal to 0.6, and y is more than or equal to 0.25 and less than or equal to 0.35;
the second bonding layer is made of TiCN;
the material of the outer coating is Al 2 O 3 And graphene;
wherein, the extending range of the envelope line of the cutting tooth to the parts of the rake face, the flank face and the top flank face of the cutting tooth is set as a blade strengthening area; the blade strengthening region extends into the rake face by an envelope of the cutting tooth by a distance m, wherein:
in the formula 1, P 1 The elongation coefficient of the rake face is in the range of 0.08 to 0.1; h is ig The tooth root is high;
and a distance v extending into the flank face and the top flank face with an envelope line of the cutting tooth, wherein:
in formula 2, P 2 The elongation coefficient of the flank face is in the range of 0.18 to 0.2; k is the shovel back amount of the cutter.
2. The cermet-based ultrahigh temperature resistant cutting tool according to claim 1, characterized in that the base materials of the body and the cutting teeth of the tool are high speed steel.
3. The cermet-based ultrahigh temperature resistant cutting tool according to claim 2, characterized in that the coating layer is the first bonding layer, the second bonding layer and the outer coating layer in that order from the inside to the outside.
4. The cermet-based ultra high temperature resistant cutting tool according to claim 3, wherein the first bonding layer has a thickness T1 and is coated on the entire outer surface of the tool at the same thickness; wherein the value range of T1 is 5-8 μm;
the thickness of the second bonding layer on the front cutter face of the cutting tooth is T2, and the thickness of the second bonding layer on the flank cutter face and the top cutter face is T2; wherein the thickness of T2 ranges from 6 μm to 10 μm; the thickness range of t2 is 2-5 μm;
the thickness of the outer coating on the front cutter face of the cutting tooth is T3, and the thickness of the outer coating on the flank edge rear cutter face and the top edge rear cutter face is T3; wherein the thickness of T3 ranges from 2 μm to 5 μm; the thickness range of t3 is 6-10 μm;
and the transition of the first bonding layer, the second bonding layer, and the outer coating layer between any two faces of the cutting tooth is a continuous connecting transition.
5. The cermet-based ultra high temperature resistant cutting tool according to claim 4, characterized in that the outer coating surface further comprises an absorption layer; the coating material of the absorption layer is one of TiN, tiCN and TiAlN; the thickness of the absorption layer ranges from 5 to 10 μm; the absorbing layer is used as an energy absorbing coating in a laser shock peening process.
6. The cutting tool of claim 5, wherein the manufacturing process comprises laser shock peening the cutting tool after the coating of the coating layer is completed; the edge strengthening region is used as an indication range of the laser shock strengthening process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210281403.2A CN114472947B (en) | 2022-03-22 | 2022-03-22 | Ultra-high temperature resistant cutting tool based on metal ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210281403.2A CN114472947B (en) | 2022-03-22 | 2022-03-22 | Ultra-high temperature resistant cutting tool based on metal ceramic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114472947A CN114472947A (en) | 2022-05-13 |
| CN114472947B true CN114472947B (en) | 2023-03-14 |
Family
ID=81488148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210281403.2A Active CN114472947B (en) | 2022-03-22 | 2022-03-22 | Ultra-high temperature resistant cutting tool based on metal ceramic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114472947B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115226515A (en) * | 2022-08-04 | 2022-10-25 | 青岛征和工业股份有限公司 | Saw chain cutter tooth and preparation process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004322229A (en) * | 2003-04-22 | 2004-11-18 | Nachi Fujikoshi Corp | Gear processing method and coated hob |
| CN101151115A (en) * | 2005-03-29 | 2008-03-26 | 住友电工硬质合金株式会社 | Replacement cutter tip and method of manufacturing the same |
| CN101462386A (en) * | 2007-12-21 | 2009-06-24 | 山特维克知识产权股份有限公司 | Coated cutting tool and a method of making a coated cutting tool |
| CN102922052A (en) * | 2012-09-28 | 2013-02-13 | 武汉大学 | AlTiN-AlCrN super hard nano multilayer composite coating hob and preparation method thereof |
| CN203044934U (en) * | 2013-01-29 | 2013-07-10 | 奥斯机(上海)精密工具有限公司 | Hard alloy composite film-coated cutter used for hard material machining |
| CN106856659A (en) * | 2015-10-09 | 2017-06-16 | 住友电工硬质合金株式会社 | Surface-coated cutting tool and its manufacture method |
| CN107848040A (en) * | 2016-03-28 | 2018-03-27 | 住友电工硬质合金株式会社 | Surface-coated cutting tool and its manufacture method |
| CN109641283A (en) * | 2016-08-25 | 2019-04-16 | 住友电工硬质合金株式会社 | Surface-coated cutting tool and its manufacturing method |
-
2022
- 2022-03-22 CN CN202210281403.2A patent/CN114472947B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004322229A (en) * | 2003-04-22 | 2004-11-18 | Nachi Fujikoshi Corp | Gear processing method and coated hob |
| CN101151115A (en) * | 2005-03-29 | 2008-03-26 | 住友电工硬质合金株式会社 | Replacement cutter tip and method of manufacturing the same |
| CN101462386A (en) * | 2007-12-21 | 2009-06-24 | 山特维克知识产权股份有限公司 | Coated cutting tool and a method of making a coated cutting tool |
| CN102922052A (en) * | 2012-09-28 | 2013-02-13 | 武汉大学 | AlTiN-AlCrN super hard nano multilayer composite coating hob and preparation method thereof |
| CN203044934U (en) * | 2013-01-29 | 2013-07-10 | 奥斯机(上海)精密工具有限公司 | Hard alloy composite film-coated cutter used for hard material machining |
| CN106856659A (en) * | 2015-10-09 | 2017-06-16 | 住友电工硬质合金株式会社 | Surface-coated cutting tool and its manufacture method |
| CN107848040A (en) * | 2016-03-28 | 2018-03-27 | 住友电工硬质合金株式会社 | Surface-coated cutting tool and its manufacture method |
| CN109641283A (en) * | 2016-08-25 | 2019-04-16 | 住友电工硬质合金株式会社 | Surface-coated cutting tool and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114472947A (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100869956B1 (en) | High speed tool steel gear cutting tool and manufacturing method therefor | |
| JP5465873B2 (en) | Method for producing coated cutting tool and cutting tool | |
| KR20060134859A (en) | Composite coating for finishing of hardened steels | |
| JP5303816B2 (en) | Hard coating tool | |
| KR20100051642A (en) | Surface-coated cutting tool | |
| JP5261018B2 (en) | Surface coated cutting tool | |
| JP5206167B2 (en) | Hard film coated cutting tool | |
| JP2006192545A (en) | Surface-coated cutting tool and its manufacturing method | |
| US20200230705A1 (en) | Coated cutting tool | |
| JP5640242B2 (en) | Surface coated cutting tool | |
| CN114472947B (en) | Ultra-high temperature resistant cutting tool based on metal ceramic | |
| EP2935653B1 (en) | Coated cutting tool and method for manufacturing the same | |
| JP2010284787A (en) | Hard film coated cutting tool | |
| JP5590331B2 (en) | Surface coated drill with excellent wear resistance and chip evacuation | |
| JP4676780B2 (en) | Hard coating, laminated hard coating and method for producing the same | |
| JP5668262B2 (en) | Surface coated cutting tool | |
| JP5995091B2 (en) | Surface coated cutting tool with excellent adhesion strength and chipping resistance | |
| JP2011167838A (en) | Hard-film coated cutting tool | |
| JP5327534B2 (en) | Surface coated cutting tool with excellent chipping resistance and peeling resistance of hard coating layer | |
| JP5640243B2 (en) | Surface coated cutting tool | |
| JP2016187847A (en) | Surface-coated cutting tool with hard coating layer exhibiting excellent chipping resistance and wear resistance in mill scale uneven thickness cutting work | |
| JP2006192544A (en) | Surface-coated cutting tool and its manufacturing method | |
| JP7463772B2 (en) | Cutting tools | |
| JP5672444B2 (en) | Surface coated drill with excellent wear resistance and chip evacuation | |
| CN117758206A (en) | Hard alloy band saw blade and manufacturing method and application thereof |
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 |