CN109044497A - A kind of low surface of a wound amorphous alloy cutter and preparation method thereof - Google Patents
A kind of low surface of a wound amorphous alloy cutter and preparation method thereof Download PDFInfo
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 175
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 84
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010941 cobalt Substances 0.000 claims abstract description 3
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims description 49
- 238000004512 die casting Methods 0.000 claims description 27
- 238000005266 casting Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 22
- 238000005516 engineering process Methods 0.000 claims description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 11
- 229910052735 hafnium Inorganic materials 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 230000009477 glass transition Effects 0.000 claims description 3
- 238000005240 physical vapour deposition Methods 0.000 claims description 3
- 238000002294 plasma sputter deposition Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 238000000748 compression moulding Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 239000005300 metallic glass Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 7
- 238000002844 melting Methods 0.000 description 19
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- 239000010935 stainless steel Substances 0.000 description 8
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
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Abstract
The invention discloses a kind of low surface of a wound amorphous alloy cutter, the cutting edge roundness position is made of amorphous alloy；The amorphous alloy includes one or more of zirconium-base amorphous alloy, cu-based amorphous alloys, al based amorphous alloy, Fe-based amorphous alloy, tantalum base noncrystal alloy, titanium-based amorphous alloy, cobalt base amorphous alloy, ni-based amorphous alloy, rare-earth-base amorphous alloy, and amorphous state accounting is more than or equal to 85% in amorphous alloy part.The present invention provides a kind of amorphous alloy cutters with the low surface of a wound of cutting, and provide the preparation method of above-mentioned cutter.Amorphous alloy cutter blade hardness height, sharpness in the present invention is high, and cutter integrally has high-strength yield strength and low-surface-energy, and flatness small to wound at cutting, cutting is high in cutting process, can greatly promote stock-removing efficiency.
Description
Technical Field
The invention belongs to the field of amorphous alloy material application, and particularly relates to an amorphous alloy cutter with a low wound surface and a preparation method thereof.
Background
A tool is a tool used for cutting machining in the industrial field. Most of the cutting tools are made of metal materials, such as stainless steel cutting tools which are most widely used in the industrial field. The material for making the cutting tool must have good high-temperature hardness and wear resistance, and bending strength and impact toughness meeting the use requirements, and high-speed steel is the most commonly used cutting tool material in modern industry due to high bending strength, impact toughness and good machinability, and is followed by various types of hard alloys. With the gradual development of the material industry, there are also many different kinds of cutting tools made of different materials, such as polycrystalline cubic boron nitride materials, polycrystalline diamond materials, etc. for cutting high hardness hardened steel and hard cast iron, as well as ceramic cutting tools that have been widely used in the civil field at present. The development of the cutter material and the development and the advance of the processing method of the cutter are carried out simultaneously, the coating of the cutter is a great change in the processing technology of the cutter, and the cutter has comprehensive and good comprehensive performance by coating one or more thin layers of high-hardness, high-wear-resistance and high-temperature-resistant materials, such as titanium nitride, titanium carbide and the like, on a cutter substrate with high toughness, so that the surface hardness of the cutter is greatly improved.
Although the prior art has various cutting tool materials, with the development of various technologies, there are still many unsatisfactory points, mainly including: 1. In the prior art, the corrosion resistance of the cutter made of steel materials as main body materials of the cutter is not high; 2. in the prior art, the cutter made of the ceramic material as the cutter main body material has high brittleness, is easy to break by being impacted or beaten in the using process, is not durable, and has certain potential safety hazard; 3. the cutting tool using the existing material as the coating material is limited by the characteristics of the existing material, the strength, the toughness and the wear resistance of the cutting tool are not integrally improved, and meanwhile, the existing technology of coating or depositing the material is complex in process and low in production efficiency, so that the manufactured product is high in cost and cannot be widely accepted in the market. In order to overcome the defects of the cutting tools in the prior art, cutting tools made of amorphous alloy materials are gradually proposed by research and development personnel.
The application number 201410581476.9, named as application of amorphous alloy in preparing razor blades and razor tools, provides an application of amorphous alloy in razor tools and a preparation method thereof. The application number 201510071786.0 entitled "an amorphous alloy ice skate and preparation method thereof" provides an application of non-metallic alloy in ice skate preparation. Although the amorphous alloy is proposed to be applied as a specific cutter, the problem of lack of strength and scratch resistance of the cutter material used in a specific environment is mainly solved in the scheme, and the amorphous alloy material can only be used as a shaver or an ice skate and cannot be used as a cutter in a wide sense.
Disclosure of Invention
In summary of the background art, the inventor of the present invention found in practice that in the prior art, grains in the internal structure of the steel cutter are coarse during the forming process, uneven grain arrangement can be encountered during edging, and the cutting edge can be found to be serrated when observed under a high magnification magnifier. The cutter blade width of this structure is great, can produce great surface of a wound at the in-process of cutting, increases the degree of difficulty of cutting simultaneously, need increase the effect that the power degree of exerting can reach the cutting. If the microstructure and the preparation method in the cutter are adjusted and improved, the wound surface cut by the cutter is reduced, the cutting efficiency of the cutter can be effectively improved, and the application range of the cutter is expanded.
In order to solve the defects of the prior art, the invention provides an amorphous alloy cutter with a low cutting surface and a preparation method of the cutter. The amorphous alloy cutter has the advantages of high hardness and sharpness of the cutting edge, high yield strength and low surface energy of the whole cutter, small wound on a cutting part in the cutting process, high cutting flatness and capability of greatly improving the cutting efficiency.
The technical effect to be achieved by the invention is realized by the following scheme:
the invention provides a low-wound amorphous alloy cutter, wherein the cutting edge part of the cutter is made of amorphous alloy; the amorphous alloy comprises one or more of zirconium-based amorphous alloy, copper-based amorphous alloy, aluminum-based amorphous alloy, iron-based amorphous alloy, tantalum-based amorphous alloy, titanium-based amorphous alloy, cobalt-based amorphous alloy, nickel-based amorphous alloy and rare earth-based amorphous alloy, and the amorphous alloy part contains amorphous state accounting for more than or equal to 85%. The amorphous state proportion of the amorphous alloy is a necessary condition for realizing low wound surface cutting of the low wound surface amorphous alloy cutter, once the crystalline state proportion is too high, microscopically large crystal grains can form uneven appearance in the preparation process of the cutting edge of the cutter in the machining process, the sharpness of the cutting edge of the cutter is adversely affected, and the cutting wound surface is increased rapidly.
Furthermore, the thickness of the cutter is 0.05-0.4mm, the Vickers hardness of the cutting edge is 800-1500, the sharpness is 0.15-0.3N, the yield strength is 800-1200MPa, and the surface roughness Ra is 0.001-0.01.
Furthermore, the included angle of two surfaces of the cutting edge of the cutter is 5-20 degrees.
The microstructure of the amorphous alloy is in disorder, the internal structure of the amorphous alloy is the structure of metal when in liquid state, and the existence mode of each component in the solid amorphous alloy is in atomic level. Therefore, the method has great advantages in the aspect of processing the cutting edge, the thickness of the cutting edge made of the amorphous alloy can be observed and found to be extremely low under a high power magnifier, the thickness can reach 5-30nm, the flatness is extremely high, and the cutting edge can be ground into a straight line. It is because the unique microstructure of amorphous alloy that makes its cutting edge narrower and smoother than conventional cutting tool materials. The width of the wound surface can be greatly reduced in the using process, the cutting is convenient, and the cutting efficiency is improved. In the amorphous alloy cutter, the thickness, the hardness of the cutting edge, the sharpness, the roughness and the yield strength of the cutter are controlled in addition to the characteristics of the amorphous alloy. The yield strength of the cutting edge of the cutter is too low, so that the cutting edge is easy to generate plastic deformation and bend inwards, and is easy to fluff and stab, and the use is influenced. The amorphous alloy cutter can be directly demoulded and molded in the casting process, has strong copying capability to a mould, and the microstructure at the atomic level ensures that the surface of the blade is easily processed into an outer surface with extremely low surface roughness and extremely low surface energy, and the blade edge is not easy to be stained with foreign matters, so that the sharpness is greatly improved and is far superior to a stainless steel cutter and a hard alloy coating cutter. In the invention, the angle of the cutting edge of the cutter is selected and set, and is controlled within the range of 5-20 degrees, so that the cutting efficiency of the cutting edge of the cutter is further improved.
Further, the composition of the amorphous alloy raw materials is selected as follows:
(Zr，Ti)a(Cu，Ni)bAlcwherein a is more than or equal to 45 and less than or equal to 63, b is more than or equal to 20 and less than or equal to 45, and c is more than or equal to 10 and less than or equal to 17;
(Zr，Hf)a(Cu，Ni，Co)b(Nb，Ti)c(Al，Be)dREewherein a is more than or equal to 49 and less than or equal to 62, b is more than or equal to 12 and less than or equal to 30, c is more than or equal to 3 and less than or equal to 12, d is more than or equal to 12 and less than or equal to 20, and e is more than or equal to 0.02 and less than or equal to 1; RE is a rare earth element;
(Zr，Hf)aTib(Cu，Ni)c(Al，Be，Mg)d(Y，C)ewherein a is more than or equal to 42 and less than or equal to 55, b is more than or equal to 6 and less than or equal to 12, c is more than or equal to 16 and less than or equal to 24, d is more than or equal to 14 and less than or equal to 23, and e is more than or equal to 0.02 and less than or equal to 2;
TiaZrbMcBedwhereinM is one or two of Cu and Ni elements, a is more than or equal to 40 and less than or equal to 50, b is more than or equal to 15 and less than or equal to 30, c is more than or equal to 15 and less than or equal to 30, and d is more than or equal to 15 and less than or equal to 30;
(Ti，Zr)aCubNic(Si，Sn，Al，B)dwherein a is more than or equal to 20 and less than or equal to 35, b is more than or equal to 50 and less than or equal to 65, c is more than or equal to 7 and less than or equal to 20, and d is more than or equal to 1 and less than or equal to 6;
Nia(Nb，Ti)b(B，Sn，Co)cwherein a is more than or equal to 48 and less than or equal to 61, b is more than or equal to 30 and less than or equal to 42, and c is more than or equal to 2 and less than or equal to 12;
Nia(Zr，Hf，Ta，Ti)b(Si，B)cNbdwherein a is more than or equal to 52 and less than or equal to 64, b is more than or equal to 20 and less than or equal to 40, c is more than or equal to 0.05 and less than or equal to 4, and d is more than or equal to 5 and less than or equal to 18;
Cua(Zr，Hf)bAlcNbdwherein a is more than or equal to 55 and less than or equal to 58, b is more than or equal to 38 and less than or equal to 42, c is more than or equal to 2 and less than or equal to 5, and d is more than or equal to 0.5 and less than or equal to 3;
Fea(Co，Cr，Mo)bBcYdMne(N，C)fwherein a is more than or equal to 40 and less than or equal to 50, b is more than or equal to 30 and less than or equal to 38, c is more than or equal to 5 and less than or equal to 12, d is more than or equal to 1 and less than or equal to 5, e is more than or equal to 2 and less than or equal to 3, and f is more than or equal to;
LaaAlbCucNidCoe(Zr，Hf)fwherein a is more than or equal to 54 and less than or equal to 58, b is more than or equal to 20 and less than or equal to 28, c is more than or equal to 7 and less than or equal to 15, d is more than or equal to 5 and less than or equal to 8, e is more than or equal to 5 and less than or equal to 12, and f is more than or equal to;
Coa(Fe，B)b(Ta，Hf)cYdwherein a is more than or equal to 47 and less than or equal to 54, b is more than or equal to 35 and less than or equal to 38, c is more than or equal to 5 and less than or equal to 12, and d is more than or equal to 0.5 and less than or equal to 3.
The amorphous alloy of the invention adopts the applicable amorphous alloy raw material composition, and the amorphous alloy composition contains metal ions with certain sterilization effect, such as Cu, Ni and the like, so that the amorphous alloy cutter of the invention also has the sterilization function superior to that of a common cutter. In the above alloy compositions, a, b, c, d, e, and f represent the number ratio of the respective metal atoms in the respective alloy compositions.
The invention also provides a preparation method of the low-wound-surface amorphous alloy cutter, which comprises the following steps:
the whole amorphous alloy cutter is made of an amorphous alloy material; processing the amorphous alloy raw material into a required cutter by vacuum die casting, suction casting and casting technologies;
or,
the whole amorphous alloy cutter is made of various amorphous alloy materials; the amorphous alloy raw material is processed into the required cutter through multiple vacuum die casting, suction casting and casting technologies.
The first improvement is carried out on the preparation method provided by the invention:
in the preparation method, a cutter integral die and a blade part die are arranged; firstly, processing an amorphous alloy raw material into the overall outline of the cutter by vacuum die casting, suction casting and casting technologies; then, heating the blade part to be softened, and placing the blade part into a blade part mould for compression molding to form the blade part; and finally, cooling to obtain the required amorphous alloy cutter.
The preparation method provided by the invention is improved in a second way:
in the preparation method, a cutter integral die and a blade part die are arranged; firstly, processing a first amorphous alloy raw material into the outline of a cutter by vacuum die casting, suction casting and casting technologies, wherein the outline does not comprise a blade part; then, the prepared cutter outline is placed in a cutter edge part die, and a second amorphous alloy raw material is smelted and die-cast through an in-die casting process, so that the cutter edge part of the cutter is prepared on the cutter outline; finally, cooling to obtain the required amorphous alloy cutter;
the glass transition temperature of the first amorphous alloy raw material is higher than that of the second amorphous alloy raw material.
The preparation method provided by the invention is subject to a third improvement:
firstly, a first amorphous alloy raw material is processed into the outline of the cutter through vacuum die casting, suction casting and casting technologies, and a blade part is directly processed on the outline of the cutter by using a second amorphous alloy raw material through an additive processing technology.
Further, the additive manufacturing technology is to use a metal 3D printer or a metal rapid prototyping machine.
The fourth improvement is made to the preparation method provided by the invention:
preferably, the first amorphous alloy raw material is processed into the profile of the cutter by vacuum die casting, suction casting and casting technologies, and the second amorphous alloy raw material is used for processing the blade part on the profile of the cutter by one or a combination of physical vapor deposition and plasma sputtering.
The invention has the following advantages:
the invention provides an amorphous alloy cutter with a low cutting surface and a preparation method of the cutter. The amorphous alloy cutter has the advantages of high hardness and sharpness of the cutting edge, high yield strength and low surface energy of the whole cutter, small wound on a cutting part in the cutting process, high cutting flatness and capability of greatly improving the cutting efficiency.
Drawings
FIG. 1 is a schematic view showing the microstructure of the cutting edge portion of a stainless steel cutting tool in the prior art;
FIG. 2 is a schematic view of the microstructure of the cutting edge of the low-surface-of-wound amorphous alloy cutter according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
In order to provide a parallelism meter for comparing test results, the thickness of the amorphous alloy cutter in the embodiment of the invention is 0.2mm, and the included angle between two surfaces of the cutting edge is 10 degrees.
Example 1
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
the cutter integral die and the blade part die are separately arranged. The cutter integral mould is designed according to the integral profile of the cutter, and the blade part mould is designed according to the requirements of the blade part in the machining process.
Preferably, the amorphous alloy raw material (the raw material composition is Zr42.7Ti12.3Cu22.4Ni11.6Al11) is processed into the overall shape profile of the cutter by vacuum die casting, the melting temperature is 1000-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 89% (calculated by microscope observation).
Then, the blade portion is heated to a softened state which is a state where press molding is possible but is not yet at a glass transition temperature, and then the blade portion is placed in a blade portion mold to be press molded with a mold clamping force 1.5 to 1.6 times as large as a mold supporting force, and the blade portion is formed by a mold pressure.
And cooling to obtain the required amorphous alloy cutter, and carrying out adaptive appearance finishing on the amorphous alloy cutter to obtain the finished amorphous alloy cutter. The adaptive appearance finishing refers to removing residual water gaps or performing surface treatment according to a set cutter shape or other requirements by utilizing a machining method such as CNC (computerized numerical control) or other machining methods.
Example 2
The method for manufacturing the amorphous alloy cutting tool in this example is almost the same as that in example 1, except that: the composition of the used amorphous alloy raw material is Ti48.7Zr17.5Ni16.9Be16.9, the smelting temperature is 1010-1020 ℃, and the amorphous state proportion of the prepared amorphous alloy cutter is about 92 percent (calculated by utilizing microscope observation).
Example 3
The method for manufacturing the amorphous alloy cutting tool in this example is almost the same as that in example 1, except that: the amorphous alloy raw material composition used was Fe46.7Co24Cr11Mo3B6.7Y5Mn2.6N0.6C0.4, the melting temperature was 1010-1020 ℃, and the amorphous alloy cutter prepared had an amorphous content of about 85.3% (calculated by microscopic observation).
Example 4
The method for manufacturing the amorphous alloy cutting tool in this example is almost the same as that in example 1, except that: the composition of the used amorphous alloy raw material is Ti29.6Zr2.5Cu54.9Ni8Si1Sn1Al2B1, the smelting temperature is 1120-1130 ℃, and the amorphous state proportion of the prepared amorphous alloy cutter is about 85.2 percent (calculated by utilizing microscope observation).
Example 5
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
the cutter integral die and the blade part die are separately arranged. The cutter integral mould is designed according to the integral profile of the cutter, and the blade part mould is designed according to the requirements of the blade part in the machining process.
Preferably, the first amorphous alloy starting material la54.3al22.6cu7ni7co8zr1hf0.1 is machined by vacuum die casting into the profile of the cutting tool, excluding the blade portion. The melting temperature is 980-990 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 85 percent (calculated by microscope observation)）。
Then, the prepared cutter outline is placed in a cutter edge part die, and a second amorphous alloy raw material Co50.7Fe37.4B1.9Ta4Hf5Y1 is smelted and die-casted by an in-die casting process, wherein the smelting temperature is 1100-1120 ℃, the vacuum degree of a smelting bin body is lower than 10Pa, and the cooling rate is 10Pa5-106K/s, the mold clamping force is 1.5-1.6 times of the mold supporting force, so that the blade part of the cutter is formed on the contour of the cutter.
And finally, cooling to obtain the required amorphous alloy cutter, and carrying out adaptive appearance finishing on the amorphous alloy cutter to obtain the finished amorphous alloy cutter.
Example 6
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
the cutter integral die and the blade part die are separately arranged. The cutter integral mould is designed according to the integral profile of the cutter, and the blade part mould is designed according to the requirements of the blade part in the machining process.
Preferably, the first amorphous alloy raw material zr42.7ti12.3cu22.4ni11.6al11 is processed into the profile of the cutter by vacuum die casting, and the blade portion is not included in the profile. The melting temperature is 1010-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 90 percent (calculated by microscope observation).
Then, the contour of the cutter is placed in a blade part mould, and a second amorphous alloy raw material Zr47.39Hf5Ti8Cu12Ni9Al6Be6Mg5.6Y1C0.01 is smelted and die-casted by an in-mould die casting process, wherein the smelting temperature is 1010-1020 ℃, the vacuum degree of a smelting bin body is lower than 10Pa, and the cooling rate is 10Pa5-106K/s, the mold clamping force is 1.5-1.6 times of the mold supporting force, so that the cutter of the cutter is manufactured on the contour of the cutterAn edge portion.
And finally, cooling to obtain the required amorphous alloy cutter, and carrying out adaptive appearance finishing on the amorphous alloy cutter to obtain the finished amorphous alloy cutter.
Example 7
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
the cutter integral die and the blade part die are separately arranged. The cutter integral mould is designed according to the integral profile of the cutter, and the blade part mould is designed according to the requirements of the blade part in the machining process.
Preferably, the first amorphous alloy raw material zr42.7ti12.3cu22.4ni11.6al11 is processed into the profile of the cutter by vacuum die casting, and the blade portion is not included in the profile. The melting temperature is 1010-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 90 percent (calculated by microscope observation).
Then, the contour of the cutter is placed in a cutter edge part die, and a second amorphous alloy raw material Ni60.1Zr5Hf5Ta8.4Ti2.1Si1.6B0.7Nb17.1 is smelted and die-casted by an in-die casting process, wherein the smelting temperature is 1150-1160 ℃, the vacuum degree of a smelting bin body is lower than 10Pa, and the cooling rate is 105-106K/s, the mold clamping force is 1.5-1.6 times of the mold supporting force, so that the blade part of the cutter is formed on the contour of the cutter.
And finally, cooling to obtain the required amorphous alloy cutter, and carrying out adaptive appearance finishing on the amorphous alloy cutter to obtain the finished amorphous alloy cutter.
Example 8
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
the cutter integral die and the blade part die are separately arranged. The cutter integral mould is designed according to the integral profile of the cutter, and the blade part mould is designed according to the requirements of the blade part in the machining process.
Preferably, the first amorphous alloy raw material cu55.5zr30.5hf1al2nb1 is processed into the profile of the cutter by vacuum die casting, and the blade portion is not included in the profile. The melting temperature is 1000-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 86 percent (calculated by microscope observation).
Then, the prepared cutter outline is placed in a cutter edge part die, and a second amorphous alloy raw material Co50.7Fe37.4B1.9Ta4Hf5Y1 is smelted and die-casted by an in-die casting process, wherein the smelting temperature is 1150-1160 ℃, the vacuum degree of a smelting bin body is lower than 10Pa, and the cooling rate is 105-106K/s, the mold clamping force is 1.5-1.6 times of the mold supporting force, so that the blade part of the cutter is formed on the contour of the cutter.
And finally, cooling to obtain the required amorphous alloy cutter, and carrying out adaptive appearance finishing on the amorphous alloy cutter to obtain the finished amorphous alloy cutter.
Example 9
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
processing amorphous alloy raw material (raw material composition is Zr42.7Ti12.3Cu22.4Ni11.6Al11) into the overall shape profile of a cutter by vacuum die casting, wherein the melting temperature is 1000-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 89% (calculated by microscope observation).
The blade portion was machined directly on the tool profile from an amorphous feedstock with a feedstock composition of ti48.7zr17.5ni16.9be16.9 using a 3d printer.
Example 10
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
processing amorphous alloy raw materials (the raw material composition is Cu55.5Zr30.5Hf11Al2Nb1) into the overall outline of the cutter by vacuum die casting, wherein the melting temperature is 1000-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 86 percent (calculated by microscope observation).
The blade portion was machined directly on the tool profile from an amorphous feedstock with a feedstock composition of ti48.7zr17.5ni16.9be16.9 using a 3d printer.
Example 11
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
processing amorphous alloy raw material (raw material composition is Zr42.7Ti12.3Cu22.4Ni11.6Al11) into the overall shape profile of a cutter by vacuum die casting, wherein the melting temperature is 1000-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 89% (calculated by microscope observation).
The blade part is directly processed on the outline of the cutter by an amorphous raw material with the raw material composition of Ti48.7Zr17.5Ni16.9Be16.9 through a physical vapor deposition technology.
Example 12
The preparation method of the amorphous alloy cutter in the embodiment comprises the following steps:
processing amorphous alloy raw material (raw material composition is Zr42.7Ti12.3Cu22.4Ni11.6Al11) into the overall shape profile of a cutter by vacuum die casting, wherein the melting temperature is 1000-1020 ℃, the vacuum degree of a melting bin body is lower than 10Pa, and the cooling rate is 103-104K/s, the mold locking force is 1.3-1.5 times of the mold supporting force; the amorphous state proportion of the prepared amorphous alloy cutter is about 89% (calculated by microscope observation).
The blade part is directly processed on the outline of the cutter by the amorphous raw material of which the raw material composition is Ti48.7Zr17.5Ni16.9Be16.9 through a plasma sputtering technology.
Comparative example 1
A commercially available 02Cr19Ni13Mo3 stainless steel cutter.
Comparative example 2
Commercially available titanium carbide coated stainless steel cutters.
The parameters of the cutting tools of the embodiment and the comparative example are mainly characterized by adopting Vickers hardness, sharpness, yield strength and surface roughness, wherein the Vickers hardness, the yield strength and the surface roughness are measured by adopting a test method in the prior art, and are not repeated herein. The sharpness of the cutter is the most important item in the technical indexes of mass in the large area, and is an objective attribute for representing whether the cutter is sharp or not and whether the cutting capability is qualified or not. The existing test for the sharpness of the cutter in China uses a QB/T2141.2-1995 daily knife sharpness test method which is a standard in the light industry, the sharpness value of a certain point of the cutter is only measured by a mechanical test method used in the test standard, the sharpness degree of the whole cutting edge cannot be reflected, the nonstandard cut object has a great influence on the accuracy of an experimental result, and meanwhile, the mechanical test method simulates the longitudinal cutting process and cannot simulate the real cutting whole process. Therefore, the cutter sharpness testing method used in the invention is to utilize a special scalpel blade sharpness tester of Shanghai Weixia environmental protection science and technology Limited company to test according to standard YY0174-2005 surgical blade.
The test results were as follows:
it can be seen from the examples and comparative examples that the amorphous alloy cutting tool of the present invention has the characteristic that the microstructure of the amorphous alloy is disordered, the internal structure of the amorphous alloy is the structure of the metal when in the liquid state, the existence mode of each component in the solid amorphous alloy is atomic level, the thickness of the cutting edge made of the amorphous alloy can be observed under a high power magnifier to be extremely low, 5-30nm can be achieved, the flatness is extremely high, and the cutting edge can be ground into a straight line, as shown in fig. 2, the flatness of 200 parts of the cutting edge under the microstructure is high, so that the width of the wound surface can be greatly reduced in the using process, the cutting is convenient, and the cutting efficiency is improved. Compared with a stainless steel cutter in the prior art, as shown in the attached drawing 1, crystal grains in an internal structure in the forming process are thick, the condition that the crystal grains are unevenly distributed can be met during edging, the saw-toothed shape of the edge part 100 can be found by observing under a high-power magnifier, a large wound surface can be generated in the cutting process, the cutting difficulty is increased, and the force applying degree needs to be increased to achieve the cutting effect.
The yield strength of the knife tool is in the range of 800-1200MPa, and the knife tool is superior to a stainless steel knife tool and a hard coating knife tool. The amorphous alloy cutter can be directly demoulded and molded in the casting process, has strong copying capability to a mould, and the microstructure at the atomic level ensures that the surface of the blade is easily processed into an outer surface with extremely low surface roughness and extremely low surface energy, and the blade edge is not easy to be stained with foreign matters, so that the sharpness is greatly improved and is far superior to a stainless steel cutter and a hard alloy coating cutter. In the invention, the angle of the cutting edge of the cutter is selected and set, and is controlled within the range of 5-20 degrees, so that the cutting efficiency of the cutting edge of the cutter is further improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A low surface of a wound metallic glass cutter which characterized in that:
the cutting edge part of the cutter is made of amorphous alloy;
the amorphous alloy comprises one or more of zirconium-based amorphous alloy, copper-based amorphous alloy, aluminum-based amorphous alloy, iron-based amorphous alloy, tantalum-based amorphous alloy, titanium-based amorphous alloy, cobalt-based amorphous alloy, nickel-based amorphous alloy and rare earth-based amorphous alloy, and the amorphous alloy part contains amorphous state accounting for more than or equal to 85%.
2. The amorphous alloy cutting tool of claim 1, wherein: the thickness of the cutter is 0.05-0.4mm, the Vickers hardness of the cutting edge is 800-1500, the sharpness is 0.15-0.3N, the yield strength is 800-1200MPa, and the surface roughness Ra is 0.001-0.01.
3. The low-surface-of-wound amorphous alloy cutter as set forth in claim 1, wherein: the included angle of the two surfaces of the cutting edge of the cutter is 5-20 degrees.
4. The low-surface-of-wound amorphous alloy cutter as set forth in claim 1, wherein: the amorphous alloy comprises the following raw materials in percentage by weight:
(Zr，Ti)a(Cu，Ni)bAlcwherein a is more than or equal to 45 and less than or equal to 63, b is more than or equal to 20 and less than or equal to 45, and c is more than or equal to 10 and less than or equal to 17;
(Zr，Hf)a(Cu，Ni，Co)b(Nb，Ti)c(Al，Be)dREewherein a is more than or equal to 49 and less than or equal to 62, b is more than or equal to 12 and less than or equal to 30, c is more than or equal to 3 and less than or equal to 12, d is more than or equal to 12 and less than or equal to 20, and e is more than or equal to 0.02 and less than or equal to 1; RE is a rare earth element;
(Zr，Hf)aTib(Cu，Ni)c(Al，Be，Mg)d(Y，C)ewherein a is more than or equal to 42 and less than or equal to 55, b is more than or equal to 6 and less than or equal to 12, c is more than or equal to 16 and less than or equal to 24, d is more than or equal to 14 and less than or equal to 23, and e is more than or equal to 0.02 and less than or equal to 2;
TiaZrbMcBedwherein M is one or two of Cu and Ni elements, a is more than or equal to 40 and less than or equal to 50, b is more than or equal to 15 and less than or equal to 30, c is more than or equal to 15 and less than or equal to 30, and d is more than or equal to 15 and less than or equal to 30;
(Ti，Zr)aCubNic(Si，Sn，Al，B)dwherein a is more than or equal to 20 and less than or equal to 35, b is more than or equal to 50 and less than or equal to 65, c is more than or equal to 7 and less than or equal to 20, and d is more than or equal to 1 and less than or equal to 6;
Nia(Nb，Ti)b(B，Sn，Co)cwherein a is more than or equal to 48 and less than or equal to 61, b is more than or equal to 30 and less than or equal to 42, and c is more than or equal to 2 and less than or equal to 12;
Nia(Zr，Hf，Ta，Ti)b(Si，B)cNbdwherein a is more than or equal to 52 and less than or equal to 64, b is more than or equal to 20 and less than or equal to 40, c is more than or equal to 0.05 and less than or equal to 4, and d is more than or equal to 5 and less than or equal to 18;
Cua(Zr，Hf)bAlcNbdwherein a is more than or equal to 55 and less than or equal to 58, b is more than or equal to 38 and less than or equal to 42, c is more than or equal to 2 and less than or equal to 5, and d is more than or equal to 0.5 and less than or equal to 3;
Fea(Co，Cr，Mo)bBcYdMne(N，C)fwherein a is more than or equal to 40 and less than or equal to 50, b is more than or equal to 30 and less than or equal to 38, c is more than or equal to 5 and less than or equal to 12, d is more than or equal to 1 and less than or equal to 5, e is more than or equal to 2 and less than or equal to 3, and f is more than or equal to;
LaaAlbCucNidCoe(Zr，Hf)fwherein a is more than or equal to 54 and less than or equal to 58, b is more than or equal to 20 and less than or equal to 28, c is more than or equal to 7 and less than or equal to 15, d is more than or equal to 5 and less than or equal to 8, e is more than or equal to 5 and less than or equal to 12, and f is more than or equal to;
Coa(Fe，B)b(Ta，Hf)cYdwherein a is more than or equal to 47 and less than or equal to 54, b is more than or equal to 35 and less than or equal to 38, c is more than or equal to 5 and less than or equal to 12, and d is more than or equal to 0.5 and less than or equal to 3.
5. The method for preparing the amorphous alloy cutter with low wound surface of claim 1, which is characterized in that:
the whole amorphous alloy cutter is made of an amorphous alloy material; processing the amorphous alloy raw material into a required cutter by vacuum die casting, suction casting and casting technologies;
or,
the whole amorphous alloy cutter is made of various amorphous alloy materials; the amorphous alloy raw material is processed into the required cutter through multiple vacuum die casting, suction casting and casting technologies.
6. The method for preparing the amorphous alloy cutter with low wound surface of claim 5, wherein the method comprises the following steps:
in the preparation method, a cutter integral die and a blade part die are arranged; firstly, processing an amorphous alloy raw material into the overall outline of the cutter by vacuum die casting, suction casting and casting technologies; then, heating the blade part to be softened, and placing the blade part into a blade part mould for compression molding to form the blade part; and finally, cooling to obtain the required amorphous alloy cutter.
7. The preparation method of the amorphous alloy cutter with low wound surface as claimed in claim 5, is characterized in that:
in the preparation method, a cutter integral die and a blade part die are arranged; firstly, processing a first amorphous alloy raw material into the outline of a cutter by vacuum die casting, suction casting and casting technologies, wherein the outline does not comprise a blade part; then, the prepared cutter outline is placed in a cutter edge part die, and a second amorphous alloy raw material is smelted and die-cast through an in-die casting process, so that the cutter edge part of the cutter is prepared on the cutter outline; finally, cooling to obtain the required amorphous alloy cutter;
the glass transition temperature of the first amorphous alloy raw material is higher than that of the second amorphous alloy raw material.
8. The preparation method of the amorphous alloy cutter with low wound surface as claimed in claim 5, is characterized in that: firstly, a first amorphous alloy raw material is processed into the outline of the cutter through vacuum die casting, suction casting and casting technologies, and a blade part is directly processed on the outline of the cutter by using a second amorphous alloy raw material through an additive processing technology.
9. The method for preparing the amorphous alloy cutter with low wound surface of claim 8 is characterized in that: the additive processing technology is to use a metal 3D printer or a metal rapid forming machine.
10. The preparation method of the amorphous alloy cutter with low wound surface as claimed in claim 5, is characterized in that: preferably, the first amorphous alloy raw material is processed into the profile of the cutter by vacuum die casting, suction casting and casting technologies, and the second amorphous alloy raw material is used for processing the blade part on the profile of the cutter by one or a combination of physical vapor deposition and plasma sputtering.
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