CN101389435B - Cutting tip, method for making the cutting tip and cutting tool - Google Patents
Cutting tip, method for making the cutting tip and cutting tool Download PDFInfo
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- CN101389435B CN101389435B CN2007800065409A CN200780006540A CN101389435B CN 101389435 B CN101389435 B CN 101389435B CN 2007800065409 A CN2007800065409 A CN 2007800065409A CN 200780006540 A CN200780006540 A CN 200780006540A CN 101389435 B CN101389435 B CN 101389435B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 267
- 238000000034 method Methods 0.000 title claims description 60
- 239000011159 matrix material Substances 0.000 claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000003082 abrasive agent Substances 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims description 180
- 230000001070 adhesive effect Effects 0.000 claims description 180
- 239000000203 mixture Substances 0.000 claims description 126
- 239000002245 particle Substances 0.000 claims description 120
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 104
- 239000000843 powder Substances 0.000 claims description 97
- 238000005551 mechanical alloying Methods 0.000 claims description 64
- 238000005245 sintering Methods 0.000 claims description 55
- 229910052742 iron Inorganic materials 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000011812 mixed powder Substances 0.000 claims description 20
- 230000001133 acceleration Effects 0.000 claims description 17
- 238000005469 granulation Methods 0.000 claims description 15
- 230000003179 granulation Effects 0.000 claims description 15
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- 230000005484 gravity Effects 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 9
- 229910052721 tungsten Inorganic materials 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229920002545 silicone oil Polymers 0.000 claims description 8
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- 229910017755 Cu-Sn Inorganic materials 0.000 claims description 6
- 229910017927 Cu—Sn Inorganic materials 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 150000001247 metal acetylides Chemical class 0.000 claims description 3
- 229910052976 metal sulfide Inorganic materials 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 7
- 239000004575 stone Substances 0.000 abstract description 7
- 239000011449 brick Substances 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000010426 asphalt Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 134
- 239000010432 diamond Substances 0.000 description 101
- 229910003460 diamond Inorganic materials 0.000 description 101
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 17
- 238000012360 testing method Methods 0.000 description 17
- 239000010941 cobalt Substances 0.000 description 14
- 229910017052 cobalt Inorganic materials 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 239000013078 crystal Substances 0.000 description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 238000005498 polishing Methods 0.000 description 9
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 9
- 239000008187 granular material Substances 0.000 description 8
- 238000000227 grinding Methods 0.000 description 8
- 239000012188 paraffin wax Substances 0.000 description 8
- 208000037656 Respiratory Sounds Diseases 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
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- 239000010438 granite Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 229910001573 adamantine Inorganic materials 0.000 description 2
- 229940067573 brown iron oxide Drugs 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
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- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 238000004881 precipitation hardening Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/025—Details of saw blade body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/028—Circular saw blades of special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a cutting tip for a cutting tool, which is used in cutting or drilling a brittle workpiece such as stone, bricks, concrete, and asphalt and has an excellent cutting speed and a long lifetime, a method of manufacturing the cutting tip, and a cutting tool including the cutting tip. The cutting tip includes an abrasive material and a sintered bonding material, wherein the bonding material is formed of a metal matrix; the metal matrix includes a phase II and/or pore having a certain size at a certain volume fraction; and the phase II is one of a non-metallic inclusion and ceramic. According to an aspect of the present invention, there is provided with a cutting tip having excellent cutting speed and a long lifetime at a much lower price.
Description
Technical field
The present invention relates to a kind of cutting tip that is used for cutting element, described cutting element be used to cut such as building stones, brick, concrete and pitch fragile workpiece or to its boring, a kind of method of making this cutting tip, and the cutting element that comprises this cutting tip, more specifically, relate to the cutting tip that is used for cutting element, the microstructure of its adhesives by improving cutting tip and have splendid cutting speed simultaneously and than the long life, a kind of method of making this cutting tip, and the cutting element that comprises this cutting tip.
Background technology
Cut such as building stones, brick, concrete and pitch fragile workpiece or to its boring, need have the abrasive material higher than the hardness of workpiece.
As abrasive material, artificial diamond's stone granulate, natural diamond particle, boron nitride particle and cemented tungsten carbide particles are arranged.And artificial diamond's stone granulate is the most generally used.
Diamond (hereinafter, being called " diamond ") is invented in 1850s, is called as the highest material of hardness in the material that exists on the earth, and because these characteristics are used for cutting or grinding tool.
Especially, diamond generally is used to cut or the construction applications of grinding granite and marmorean building stones manufacture field and cutting or grinding xoncrete structure.
Cutting or grinding tool comprise cutting tip, and this cutting tip comprises the diamond particles that is used for cutting workpiece and is used to keep the adhesives of diamond particles.
Most of cutting element by utilize metal dust as adhesives mix, the powder metallurgy process of compacting and sintered diamond particles forms.
For a long time, the most generally with the cobalt powder adhesives that acts on diamond cutting tool.
The cobalt adhesives is called as " general adhesives " in the diamond tool field, because the cutting tip that uses the cobalt adhesives to form has splendid cutting speed, and irrelevant or no matter the horsepower (HP) of cutter is height or low with the workpiece such as granite, concrete, pitch and marble.
Because the cobalt adhesives is worn and torn well,, make the cobalt adhesives remarkably become general adhesives thus so diamond particles is outstanding well.
Because the wearing and tearing of adhesives take place in 2 to 3HP little low power cutter well, so cutting inferior can not occur.
Yet, because the wearing and tearing very apace in the cutter of high HP of cobalt adhesives, so the cutting speed height, but diamond particles too early breaks away from, thus shortened service life.
Recently, introduce and use high HP machine to be used for improving cutting granite, concrete or PRODUCTION OF PITCH rate.
In granite cutting factory, although used the large scale multitool sheet machine of 100HP in the past 10 years, the machine of use 150HP usually, and introduced the machine of 200HP now.
On the other hand, be to improve rate of cutting output, with 40 or the machine of the machine replacement 20HP of 65HP cut concrete or bituminous paving.Even the machine of use 100HP.
As mentioned above, along with the increase of the HP of cutter, can not guarantee the service life of cutting element by the adhesives that uses pure cobalt.
Usually adopt the slow down wearing and tearing of cobalt adhesives of the method for adding tungsten (W) and tungsten carbide (WC).
Recently, for prolonging the service life of adhesives, the amount of adding tungsten carbide must be increased to 50 to 60%.
Yet following problem can appear in the increase along with the amount of adding tungsten carbide.
When cobalt (Co) and tungsten carbide (WC) form adhesives, when must being elevated to sintering temperature greater than 50% the time, the amount of tungsten surpasses 1000 ℃, with the sintering adhesives.
Along with sintering temperature raises, can not avoid the hot deterioration of the diamond particles that mixes with adhesives.
Along with sintering temperature raises, diamond particles converts graphite to, and the hardness of diamond particles reduces rapidly.
Therefore, in diamond cutter industry, attempt sintering temperature is reduced to less than 900 ℃, and avoid sintering temperature to surpass 1000 ℃ as much as possible.
This is because when the hot deterioration of diamond particles is more abominable, can not obtain higher cutting speed and long service life.
Therefore, reduce the amount of tungsten carbide with the sintering temperature that do not raise.Yet, when the amount of tungsten carbide is lowered, the wearing and tearing of the cobalt that can not slow down.
In addition, cobalt adhesives costliness, the price change of cobalt adhesives is big, and has environmental problem.
Therefore, to replacing the cobalt adhesives to carry out a lot of effort with another material.On the other hand, because iron is cheap and have less relatively environmental problem, so replace the method for cobalt to cause people's attention with iron.
Yet, under the situation of the iron of selling on the market,, after sintering, be difficult to obtain fine and close microstructure although use carbonyl iron powder with microscopic particles size.Therefore, need 1000 ℃ high temperature to improve sintered density.
Yet when sintering temperature raise, the diamond particles that mixes with adhesives converted graphite to, and the hot deterioration of the diamond that diamond intensity is descended is rapidly quickened.When the hot deterioration of diamond particles is more abominable, be difficult to obtain splendid cutting speed and long service life.
Therefore, in diamond cutter industry, attempt sintering temperature is reduced to less than 900 ℃.
In addition, because the physical property such as hardness and cross-breaking strength is lower than cobalt, so the adhesives that forms by the sintering iron powder is being used for aspect the adamantine mechanical retention relatively poorly, and weares and teares unsmooth so that has reduced cutting speed, has limited the application for diamond tool thus.
Summary of the invention
Technical problem
For solving the problem of conventional art, the inventor has proposed the present invention based on the result of research and test.
One aspect of the present invention provides a kind of cutting tip that is used for cutting element, and described cutting tip not only has splendid cutting speed and the service life of growing but also has equally in high HP wet type cutting operation in low HP DRY CUTTING operation.
One aspect of the present invention also provides a kind of method of making the cutting tip that is used for cutting element more economically, described cutting tip not only has in low HP DRY CUTTING operation splendid cutting speed and long service life, and has equally in high HP wet type cutting operation.
One aspect of the present invention also provides have splendid cutting speed and than the cutting element of the cutting tip of long life a kind of comprising.
Technical scheme
According to an aspect of the present invention, a kind of cutting tip that is used for cutting element is provided, described cutting tip comprises abrasive material that is used for cutting workpiece and the sintering adhesives that keeps described abrasive material, wherein, described adhesives is formed by metallic matrix, and described metallic matrix forms by one in metal and the metal alloy; Phase II and/or hole are included in the described metallic matrix with 0.5 to 30% volume ratio; Described phase II is at least one in non-metallic inclusions, pottery and the cement; The size in described phase II and described hole is less than 3 μ m; And the distance between described phase II and the described hole is less than 40 μ m.
According to a further aspect in the invention, a kind of cutting tip that is used for cutting element is provided, described cutting tip comprises abrasive material that is used for cutting workpiece and the sintering adhesives that keeps described abrasive material, wherein, described adhesives is formed by metallic matrix, and described metallic matrix forms by one in metal and the metal alloy; Phase II and/or hole are included in the described metallic matrix with 0.5 to 30% volume ratio; Phase III is included in the described metallic matrix with 0.1 to 10% volume ratio; Described phase II is at least one in non-metallic inclusions, pottery and the cement, and described phase III is a low-melting-point metal; The size in described phase II and described hole is less than 3 μ m; And the size of described phase III is less than 5 μ m.
According to another aspect of the invention, provide a kind of cutting tip that is used for cutting element, described cutting tip comprises a plurality of abrasive particles and powder sintered adhesives, and wherein, described powder sintered adhesives is formed by the iron-based body; Phase II is included in the described iron-based body with 0.5 to 15% volume ratio, and perhaps phase II is with 0.5 to 15% volume ratio, and the hole is included in the described iron-based body with the volume ratio less than 5%; Described phase II is at least one in non-metallic inclusions and the pottery; The size of each of described phase II and described hole is less than 3 μ m; And the distance between described phase II and the described hole is less than 40 μ m; The hardness of described iron adhesives is greater than 70HRB; And the cross-breaking strength of described iron adhesives that does not comprise abrasive material is greater than 80kgf/mm
2
According to another aspect of the invention, a kind of method that is used for the cutting tip of cutting element by mixing and hot pressed sintering abrasive particle and adhesives manufacturing at high temperature is provided, described method comprises: preparation comprise 0.5 to 25wt% phase II composition with by the adhesives of a matrix composition that forms in metal and the metal alloy powders and the composition of II mutually that comprises 0.5 to 25wt%, 0.1 to 10wt% the phase III composition that forms by the low-melting-point metal powder and by one in the adhesives of one in metal and metal alloy powders matrix composition that forms, and mix described adhesives by mechanical alloying; Described mixture is mixed with abrasive particle and adhesive; By using the high viscosity volatile liquid granulation described mixed-powder of viscosity greater than 3.0cP; And after the shape of colding pressing for cutting tip, the mixed-powder of the described granulation of hot pressed sintering.
In accordance with a further aspect of the present invention, provide a kind of cutting element that comprises described cutting tip.
Beneficial effect
As mentioned above, according to an aspect of the present invention, provide a kind of with low price and have splendid cutting speed and than cutting tip and the cutting element of long life.
Description of drawings
Fig. 1 is a schematic diagram, shows the example of the vibrating mill that is applied to mechanical alloying according to an exemplary embodiment of the present invention;
Fig. 2 is a schematic diagram, shows the example of the attrition mill that is applied to mechanical alloying according to an exemplary embodiment of the present invention;
Fig. 3 is a schematic diagram, shows the example of the ball mill that is applied to mechanical alloying according to an exemplary embodiment of the present invention;
Fig. 4 is a schematic diagram, shows the example of the planetary grater that is applied to mechanical alloying according to an exemplary embodiment of the present invention.
The specific embodiment
To describe exemplary embodiment of the present invention in detail now.
The present invention will be applied to being used for the cutting tip of cutting element, and this cutting tip comprises the abrasive material of cutting workpiece and the adhesives that keeps the sintering of this abrasive material.Especially, the performance of adhesives is improved such as the microstructure and the mechanical property of adhesives.
Abrasive material can be normally used any material, such as artificial diamond's stone granulate, natural diamond particle, boron nitride particle and cemented tungsten carbide particles.Hereinafter, abrasive material abbreviates " diamond " as.
The inventor has carried out long-time research and test for the performance of adhesives, it is for the cutting speed of the cutting tip that is used for cutting element and have influence service life, specifically be for influential, and finished the present invention based on the result of research and test to polishing machine.
About cutting tip, will carry out following description to the function of adhesives.
At first, adhesives keeps diamond particles with cutting workpiece during cutting operation.
When adhesives can not fully keep diamond particles, diamond particles can easily drop out suddenly from adhesives.
Because the operation of cutting workpiece is undertaken by diamond particles, so when diamond particles drops out suddenly easily, cutting speed reduces, and because direct between workpiece and the adhesives contacts the wearing and tearing that cause, and reduced the service life of cutting tip rapidly.
On the other hand, when adhesives fully kept diamond particles, the front end of diamond particles became sharp edge with cutting workpiece during cutting operation.
During cutting operation, the front end that is repeating diamond particles is cleaved into microsize, disengaging and generates the process and the cutting workpiece on new limit.Cutting operation continues up to consuming a diamond particles.
After diamond particles was consumed, following new diamond particles was outstanding once more, and repeats this process to carry out cutting operation.
Just, when the diamond confining force of adhesives is high, the cutting speed and the service life of cutting tip improve simultaneously, and when adhesives can not keep diamond particles fully and break away from ahead of time, the cutting speed and the service life of cutting tip reduced simultaneously.
The second, adhesives suitably exposes diamond particles with cutting workpiece during cutting operation.
When cutting tip contacts with workpiece and carries out cutting operation, the diamond particles cutting workpiece.
Like this, diamond particles must be fully outstanding from the surface of adhesives in the front of cutting tip.
When adhesives did not did not wear and tear, diamond particles was fully not outstanding from the surface of adhesives, and the limit of diamond particles is covered by adhesives.
Like this, the limit of diamond particles can not cutting workpiece, and cutting speed reduces.Finally, can not carry out cutting operation.
Aforesaid phenomenon is called as glazing (glazing) phenomenon.
For fear of the glazing phenomenon, the adhesives that suitably weares and teares, and diamond particles must protrude in the surface of adhesives.
On the other hand, when the rate of wear of adhesives was too high, owing to can not keep fully under the situation of diamond particles at adhesives, so the dropping out suddenly ahead of time of diamond particles was the service life of reduction cutting tip.
As mentioned above, the wearing and tearing of adhesives may be the cutting speed of decision cutting tip and an important metallurgical performance in service life.
The formation that the adhesion strength of HP, adhesives of cutter and workpiece are arranged is as influential factor that adhesives is worn and torn.
When workpiece in cutting operation contacted with cutting tip, because cutting element rotates such as saw blade, the HP that is used for the cutter of rotating saw blade had direct influence to the wearing and tearing of cutting tip adhesives.
Just, when the HP of cutter was big, the rate of wear of adhesives was fast, and when HP hour, the rate of wear of adhesives was slow.
And the adhesion strength between the powder in adhesives has considerable influence to the wearing and tearing of adhesives.
When the adhesive strength when contact area between the powder between the big or powder was big, the adhesives of the cutting tip that forms by sintering had strong adhesive strength.
When the adhesive strength of adhesives is strong, can not weares and teares well, and when adhesive strength is weak, can wear and tear well.
The constituent of the workpiece that hardness is the highest has very big influence to the wearing and tearing of adhesives.
For example, under granitic situation, because quartzy SiO
2Composition has the highest hardness, so when increasing the amount of quartzy composition, the wearing and tearing of adhesives become higher.
Just, aspect the fixed diamond particle, the wearing and tearing of adhesives need be slowly carried out, and aspect the exposure diamond particles, the wearing and tearing of adhesives need be carried out fast.
One aspect of the present invention provides a kind of improvement adhesives that satisfies about adhesives polishing machine demand.
The inventor has carried out darker research and test based on the function of adhesives for the adhesives polishing machine.
During cutting operation, can carry out the wearing and tearing of adhesives well, so that diamond particles is outstanding well from the surface of cutting tip.
Yet during cutting operation, for fear of dropping out suddenly ahead of time of diamond particles, adhesives keeps diamond particles for a long time and slowly carries out the wearing and tearing of welding material.
As the result of research and test, the inventor can know that adhesives must split well by less power, and the amount of splitting hourly must be less to satisfy required polishing machine.
The wearing and tearing of adhesives represent that adhesives splits into particle and disengaging.
Therefore, when adhesives splits into particle by less power, can wear and tear well.
When adhesives splits into granule to greatest extent by less power, can see that in microscopic view wearing and tearing are carried out well, and in macroscopic view, can't see the wearing and tearing of being carried out because wear extent is less.
Therefore, one aspect of the present invention provides a kind of design of microstructure of adhesives, and purpose is to make adhesives split into granule to greatest extent by less power.
The microstructure of the adhesives of cutting tip is a metallic matrix according to an exemplary embodiment of the present invention, and wherein the phase II of microcosmic and/or hole are evenly distributed in the metallic matrix.
Metallic matrix forms by one in metal and the metal alloy.
Metallic matrix can be to be selected from one that comprises in the following group: one and stainless steel in the alloy of among Fe, Cu, Ni, Co, Cr, Mn and the W one and Fe, Cu, Ni, Co, Cr, Mn and W.
Phase II can be at least one that is selected from the group of non-metallic inclusions, pottery and cement.
Non-metallic inclusions can be in metal oxide, metal nitride, metal carbides, carbonitride and the metal sulfide.
The size in phase II and/or hole is less than 3 μ m, and in the independent amount in phase II and/or hole or the total amount one is 0.5 to 30% volume ratio.
Phase II and/or hole and parent metal do not have adhesive strength or have more weak adhesive strength.Because phase II and/or hole become the origin of crackle, and connect into crackle to split into particle easily, so phase II and/or pore size distribution are in metallic matrix.
Because when the size in phase II and/or hole surpassed 3 μ m, the size of the particle that splits was too big, so the size in phase II and hole is limited to 3 μ m.Therefore, phase II and hole can not connect on the crackle, and depart from mutually with basic principle can not even wear extent hourly is increased to.
In addition, because when the size in phase II and hole was big, the impact strength of sintering adhesives was lower,, and can not be used for cutting element so cutting tip is ruptured by little impact easily.
As mentioned above, when the total amount in phase II and hole surpassed 30% volume ratio, cutting tip was ruptured by little impact easily.When volume ratio less than 0.5% the time, the matrix of adhesives can not split into particle, and be out of shape owing to sliding and quilt is worn into piece.
Distance between phase II and the hole can be less than 40 μ m.
Like this, the distance between distance, phase II and the hole between II and the phase II and the distance between the Kong Yukong mutually of the distance expression between phase II and the hole.
Under the situation of this volume ratio in phase II and hole and size, the distance between phase II and the hole can be less than 40 μ m.When this distance during less than 40 μ m, add phase II and exist the effect in hole little, adhesives may be owing to slide and be out of shape and quilt is worn into piece.
In addition, the microstructure of the adhesives of cutting tip is a metallic matrix according to another embodiment of the present invention, wherein, and the phase III of low-melting-point metal and microcosmic II and/or hole distribution equably together mutually.
Phase III be low-melting-point metal and with microcosmic mutually II and hole together with the metallic matrix humidifying.
Phase III can be at least one in tin (Sn) and the signal bronze (Cu-Sn).The size of phase III can be less than 5 μ m.The amount of three-phase can be 0.1 to 10% volume ratio.More preferably, the amount of phase III can be 0.1 to 5%.
The fusing point of tin (Sn) is 233 ℃, and according to the ratio of copper (Cu), the fusing point of signal bronze is between 232 to 1083 ℃.
Because the sintering temperature height of cutting tip is so between the operational period of sintering cutting tip, the low-melting-point metal in the adhesives is fused into liquid phase and infiltrates the crystal boundary of parent metal.
Just, carried out liquid-phase sintering.
The low-melting-point metal of the membrane type of the crystal boundary of infiltration parent metal makes adhesives can easily split into microparticle.
Low-melting-point metal has the feature with the parent metal humidifying, thereby makes low-melting-point metal can infiltrate the crystal boundary of parent metal with the form of liquid film.
When not having the humidifying feature, in liquid-phase sintering, low-melting-point metal can not infiltrate crystal boundary.
In other words, comprise that the adhesives of the phase III that infiltrates the parent metal crystal boundary is compared with the adhesives that comprises the III mutually that does not infiltrate the parent metal crystal boundary, with the littler power adhesives that just can split.
Just, because adhesives is worn into granule well by less power, so adhesives will be advantageously applied to such as the low HP cutting of doing cutting.
On the other hand, the phase III that is distributed in the form of crystal grain in the microstructure of adhesives is infiltrating the unnecessary phase III that stays behind the crystal boundary with the liquid film form, and is unnecessary in theory.
Yet,, recognized to be difficult to determine whether low-melting-point metal enough infiltrates the crystal boundary of parent metal in large quantities by a large amount of processs of the test.
Therefore, by considering that the unnecessary amount that form with crystal grain is distributed in the phase III in the microstructure of adhesives determines whether enough to infiltrate crystal boundary in large quantities with the form of liquid film.
Because when the volume ratio of the amount of the phase III that distributes with the crystal grain form surpassed 10%, the intensity of cutting tip was owing to too a large amount of unnecessary phase III reduces, so the volume ratio of the amount of phase III is limited to 0.1 to 10%.
In addition, equivalent was less than 0.1% o'clock, and phase III enough infiltrates the crystal boundary of parent metal in large quantities.
When the size of the phase III in being present in parent metal surpasses 5 μ m, because phase III is evenly distributed in the metallic matrix and separated, so the impact strength of cutting tip reduces.
The parent metal of adhesives can be iron (Fe).
When iron was used for parent metal, only phase II or phase II and Kong Douke were included in the iron-based body.
The volume ratio of phase II can be 0.5 to 15%, and the size of phase II can be less than 3 μ m.
In addition, the volume ratio in hole can be less than 5%, and the size in hole can be less than 3 μ m.
Distance between phase II and the hole can be less than 40 μ m.
Phase II and hole and iron-based body do not have adhesive strength or have more weak adhesive strength.Because phase II and hole become the origin of crackle, and connect into crackle easily adhesives is split into particle, so phase II and/or hole are distributed in the iron-based body.
When the amount of phase II surpasses 15%, since fine and close inadequately, so cutting tip ruptures because of external impact easily.
On the other hand, when the amount of phase II less than 0.5% the time, the effect of adding phase II is little, iron adhesives owing to slide is out of shape and quilt is worn into piece.
Because when the amount in hole surpassed 5%, cutting tip ruptured because of external impact easily, so the amount in hole can be limited to be less than 5%.
Because when each the size in phase II and hole surpassed 3 μ m, the fracture strength of iron adhesives departed from because the flaw size and the shortage uniformity that distributes increase, so the size in phase II and hole can limit less than 3 μ m.
Under the situation of the volume ratio in above-mentioned phase II and hole and size, the distance between phase II and the hole can be less than 40 μ m.When this distance during greater than 40 μ m, add phase II and exist the effect in hole little, the iron adhesives may be owing to slide and be out of shape and quilt is worn into piece.
Hereinafter, improve the mechanical property of iron adhesives to satisfy demand with being for the diamond confining force of adhesives with describing.
For the mechanical property of iron adhesives according to an exemplary embodiment of the present invention, the hardness of iron adhesives can be greater than HRB70.
When the hardness of adhesives during less than 70HRB, the easy plastic deformation of adhesives and produce gab (gab) between adhesives and diamond particles drops out suddenly to cause diamond particles ahead of time.The hardness of adhesives can be greater than HRB70.
Although the hardness of common iron adhesives is less than HRB60, but because by the dispersion hardening of even distribution microcosmic phase II particle and the crystallite dimension refinement that in sintering work, is recrystallized, so the iron adhesives has higher hardness according to an exemplary embodiment of the present invention by the powder annealing that makes mechanical alloying.
Usually, the inversely proportional increase of the size of the hardness of metal and metal grain.
In addition, the cross-breaking strength of iron adhesives can be greater than 80kgf/mm
2
When the cross-breaking strength of adhesives less than 80kgf/mm
2The time, cutting tip ruptures easily.
Cross-breaking strength is represented the value when the iron adhesives does not comprise diamond particles.
When the iron adhesives comprised diamond particles, the value of cross-breaking strength reduced by 10 to 30kgf/mm usually
2
Although common iron adhesives shows less than 70kgf/mm
2Cross-breaking strength, but the iron adhesives has shown and has surpassed 80kgf/mm according to an exemplary embodiment of the present invention
2Cross-breaking strength.Because the driving force of sintering is owing to the micro-crack in the powder of mechanical alloying rolls up, so during sintering, carry out almost completely compacting.
On the other hand, compare the diamond particles that comprises less amount by the cutting tip of iron adhesives manufacturing according to an exemplary embodiment of the present invention with common cutting tip.
Just, because the diamond confining force of iron adhesives is splendid, diamond particles is not easy to drop out suddenly.
Because adhesives fixed diamond particle is constantly to the last, thus the life-span that makes of all diamond particles prolong.Therefore, although the quantity of diamond particles than common diamond particles quantity still less, service life performance and common similar.
Although be used for the diamond particles that the cutting tip of dried cutting element comprises 3.5 to 5% volume ratios, but can comprise the diamond particles of 2 to 4% volume ratios by the cutting tip that uses iron adhesives manufacturing according to an exemplary embodiment of the present invention, and can have the service life similar to common cutting tip.
As mentioned above, because the quantity of used diamond particles is few, so can have the cutting tip of similar performance with the low cost manufacturing.
On the other hand, the cutting tip by the manufacturing of iron adhesives can all use the big and high high grade diamond of toughness index (TI) of crystallite dimension.
TI represents the ability of diamond particles tolerance repeated stock.When TI was high, diamond particles can tolerate hard operating condition for a long time, and can not destroy.
Therefore, when using the high diamond particles of crystallite dimension and TI, because it need consume each diamond particles for a long time, so improve the service life of cutting tool greatly.
In addition, because diamond particles is higher from the projecting height on adhesives surface, so the cutting speed of cutting element also improves greatly.
Therefore, using crystallite dimension diamond particles big and that TI is high is a kind of be used for improving the simultaneously service life of cutting element and effective ways of cutting speed.
Yet when the diamond confining force of adhesives was little, diamond particles dropped out suddenly easily ahead of time.Like this, although used the diamond particles that crystallite dimension is big and TI is high, the service life of cutting element and cutting speed do not improve.
Therefore, the iron adhesives can all use crystallite dimension greater than 350 μ m and TI greater than 85 high grade diamond, produce thus and have the splendid cutting speed and the cutting tip in service life.
One aspect of the present invention also provides a kind of cutting element that comprises this cutting tip.
Have sectional type cutting element, rim type cutting element, cup type cutting element, wire saw and core drill as representational skiver.
Hereinafter, the method for making the cutting tip that is used for cutting element will be described in detail.
Be to make cutting tip, prepare in following: the adhesives that comprises the matrix composition that forms by a phase II composition of 0.5 to 25wt% and a powder in metal dust and the metal alloy powders according to exemplary embodiment of the present invention; With the adhesives that comprises the matrix composition that forms by 0.5 to 25wt% the composition of II mutually, 0.1 to 10wt% phase III composition and a powder in metal dust and the metal alloy powders, and adhesives is mixed by mechanical alloying.
The matrix composition can be in following: is selected from the group that comprises Fe, Cu, Ni, Co, Mn and W and is selected from the group of the alloy that comprises Fe, Cu, Ni, Co, Mn and W one, and stainless steel.
Add phase II composition with the raising polishing machine, and this phase II composition can be at least one that is selected from nonmetal group that comprises ceramic powders, metal oxide, cement and glass powder.
The amount of the phase II composition that adds can be limited to 0.5 to 25wt%.
When the volume ratio of phase II composition greater than 25% the time, the agglutinating property of adhesives reduces, and cutting tip ruptures because of external impact easily.
On the other hand, when the volume ratio of phase II composition less than 0.5% the time, the effect of adding phase II composition is insufficient.Therefore, adhesives can not split into granule, and be out of shape owing to sliding and quilt is worn into piece.
Also add phase III composition to improve polishing machine, this phase III composition can be at least one in tin (Sn) and the signal bronze (Cu-Sn).
The amount of the phase III composition that adds can be limited to 0.1 to 10wt%.
When the amount of the phase III composition that adds during, then can not obtain fully to improve the effect of polishing machine by adding phase III composition less than 0.1wt%.When this amount during greater than 10wt%, phase II may be as weak spot, and the destruction that causes the sintering adhesives easily.
The present invention relates to the method that a kind of manufacturing is used for the cutting tip of cutting element, described cutting tip comprises the sintering adhesives of diamond particles and fixed diamond particle.In the present invention, the application machine alloying to be being evenly distributed in phase II composition in the matrix with III composition mutually, and uses the powder of high viscosity volatile liquid with granulation bulky grain size.
In making the method for cutting tip, phase II composition mixes by mechanical alloying with matrix composition powder equably with III composition powder mutually, and the mixed-powder of phase II composition, phase III composition and matrix composition mixes with bonding agent and diamond particles.
Because existence is very big between the powder of phase II composition and phase III composition and matrix composition powder proportion and crystallite dimension are poor, so be difficult to by using simple mixed method with matrix composition powder and II composition and phase III composition powder mutually.Therefore, separating of phase II particle and phase III particle after sintering, appear in the matrix of adhesives.
Because the phase II in the adhesives matrix is the origin of crackle with III mutually, and connect into crackle, thus adhesives is worn into particle, when having the separating of phase II and phase III, the size of the particle that splits is inhomogeneous, and a part can not split into granule, and this part is out of shape owing to sliding and quilt is worn into piece.
When the wearing and tearing of adhesives were inhomogeneous and level and smooth, diamond had reduced the performance of cutting element thus from the outstanding of adhesives surface and because adhesives wearing and tearing adamantine outstanding relatively poor.
In the present invention, the application machine alloyage process is being the demand that satisfies about the distribution of phase II and phase III with matrix composition powder and II composition powder and phase III composition powder purpose mutually.
In ma process since with the collision of steel ball, matrix composition powder, phase II composition powder and the mixture cold welding and the fracture repeatedly of III composition powder mutually, phase II composition powder and III composition powder mutually thus as time goes by and equably distribute.
Mechanical alloying method according to an exemplary embodiment of the present invention can be undertaken by vibrating mill, attrition mill (attrition mill), ball mill and the planetary grater that can grind coarse powder and mix various powder equably.
Hereinafter, the ideal state of four kinds of ma processes will be described in detail.
The first, the mechanical alloying method of use vibrating mill
As shown in fig. 1, vibrating mill 20 by using vibrating shaft 21 vibration at high speed containers 22 so that ball 23 in the container 22 and powder along with vibration moves back and forth, to mix and abrasive flour.That is to say, can reduce the size of matrix composition, and can mix phase II composition powder and III composition powder mutually equably by using vibrating mill.
Be mixed matrix composition powder, phase II composition powder and III composition powder mutually, the use diameter is 3 to 12mm steel ball, the amplitude of vibration is 0.5 to 15mm, vibration frequency is 800 to 3000rpm, vibration acceleration is 8 to 12 times of acceleration of gravity, container 22 inside are filled with 50 to 85% the abrasive media that reaches container 22, and 30 to 70% of the clearance spaces of container 22 is filled the powder that will mix.Mixing can be carried out 1 to 3 hour.
The second, the mechanical alloying method of use attrition mill
As shown in Figure 2, attrition mill 30 comprises rotating shaft 31, and this rotating shaft 31 comprises the arm 311 of the abrasive media 33 in a plurality of stirred vessels continuously 32, rubs and collision in order to produce between abrasive media 33 and powder, and makes powder and grinding.
That is to say, can reduce the size of matrix composition, and can mix phase II composition powder and III composition powder mutually equably by using attrition mill 30.
Be mixed matrix composition powder, phase II composition powder and III composition powder mutually, the use diameter is 3 to 10mm steel ball, the rpm of rotating shaft 31 (revolutions per minute) is 300 to 900, container 32 inside are filled with 30 to 65% the abrasive media 33 that reaches container 32, and 30 to 70% of the clearance spaces of container 32 is filled the powder that will mix.Mixing can be carried out 1 to 2 hour.
In addition, because the generation frictional heat that is in operation, so can allow cooling water to flow with the control temperature in the exterior circumferential of container 32.
By rotation at a high speed, attrition mill can reduce running time, and can increase the powder amount and the amount of grinding of time per unit, boosts productivity thus.
The 3rd, the mechanical alloying method of use ball mill
As shown in Figure 3, ball mill 40 comprises container 42, and in this container 42, powder is mixed and grinding by collision, and collision relies on the whereabouts of gravity to produce by abrasive media 43 and powder.
That is to say, can reduce the size of matrix composition, and can mix phase II composition powder and III composition powder mutually equably by using ball mill 40.
Be mixed matrix composition powder, phase II composition powder and III composition powder mutually, the use diameter is 7 to 30mm steel ball, revolutions per minute (rpm) is 30 to 100, container 42 inside are filled with 30 to 65% the abrasive media 43 that reaches container 42, and 30 to 70% of the clearance spaces of container 42 is filled the powder that will mix.Mixing can be carried out 5 to 10 hours.
Ball mill has the advantage such as the container of equipment at a low price, various sizes, but its long operational time.
The 4th, use the mechanical alloying method of planetary grater
As representational centrifugal grater planetary grater is arranged.As shown in Figure 4, planetary grater 50 comprises rotating disc 51, and on this rotating disc 51, as the earth that revolves around the sun, the container 52 that comprises abrasive media 53 is around orbital motion and rotation on its oneself axis.
Although ball mill collides by gravity, planetary grater can further increase acceleration of gravity, increases the effect of mixing and abrasive flour thus.
That is to say, can reduce the size of matrix composition, and can mix phase II composition powder and III composition powder mutually equably by using planetary grater 50.
Be mixed matrix composition powder, phase II composition powder and III composition powder mutually, the use diameter is 9 to 25mm steel ball, centrifugal acceleration is 8 to 12 times of acceleration of gravity, container 52 inside are filled with 30 to 65% the abrasive media 53 that reaches container 52, and 30 to 70% of the clearance spaces of container 52 is filled the powder that will mix.Mixing can be carried out under 50 to 400rpm 1 to 2 hour.
Because planetary grater produces a large amount of heats, so planetary grater can not move continuously, but can carry out following operation repeatedly: 15 to 25 minutes orbital motion, parked 5 to 10 minutes, 15 to 25 minutes retrograde orbit operation, and parked 5 to 10 minutes.
Owing to change direction of rotation at run duration, planetary grater has higher mixing and grinding efficiency than the operation along a direction.
By during the ma process of four kinds of methods, the oxidation of powder may appear.
For avoiding the oxidation of mixed-powder, equipment can charge into nitrogen or argon gas during the course.
In addition,, can add organic solvent, during the mechanical alloying method, to carry out the humidifying operation such as ethanol, acetone and toluene for avoiding oxidation.
Hereinbefore, described by adding phase II become the to assign to method of in the matrix of adhesives distribution phase II.Yet the present invention will be not limited to this method, and can phase II be distributed in the matrix of adhesives by the mixing condition of suitably controlling matrix composition powder under the situation of not adding phase II composition.
For example, when will be with in the time as the iron-based body of ferric oxide particles disperse of phase II at adhesives, except equably the method for the iron powder of mixed oxidization iron powder and matrix composition, also can during ma process, ferric oxide particles being imported matrix by the oxidation of iron powder by the mechanical alloying method.
That is to say, when iron powder in oxygen atmosphere during mechanical alloying, iron powder surperficial oxidized, and when iron powder cold welding and fracture, oxide is also ground so that spread in the iron powder.
Next, will mix with diamond particles and adhesive by the mixture that the mechanical alloying method is mixed.Like this, the method for mixing is not specially limited.Mixing can be undertaken by tubular mixer.
When using tubular mixer, the powder that charges into is less than 50% of container, and mixes 20 to 60 minutes with 20 to 90rpm.
Then, as mentioned above, has the mixed-powder that comes granulation diamond particles and adhesive greater than the high viscosity volatile liquid of 30 centipoises (cP) viscosity by use.
The granulation of mixed-powder is the necessary process that is used for the automatic operation of compacting process.Owing to by granulation flowing of powder improved greatly, during automatic compacting, can always fill the powder of constant basis.
When adding to viscous liquid in the mixed-powder, mixed-powder is by the easy one-tenth particle bonded to each other of capillary force of liquid.
Because the liquid that adds removes easily, but the adhesive that mixes makes powder bonded to each other, and formed particle has accessible intensity.
The viscosity of liquid can and can have volatility greater than 3cP according to an exemplary embodiment of the present invention.
When the viscosity of liquid during, because capillary force reduces owing to the low viscosity of liquid, so be difficult to make coarse particle or erose particle granulation less than 3cP.
Yet normally used size can be come granulation fully as the methyl alcohol of 0.6cP by using viscosity corresponding to several microns powder.
In addition, when liquid is non-volatile liquid because liquid keeps after the oven dry particle, thus next step compacting operation since the viscosity of institute's liquid hold-up make mobile variation and can not carry out.
The high viscosity volatile liquid can be a volatile silicone oils.When the high viscosity volatile liquid was volatile silicone oils, the amount of liquid that the mixed-powder of every 1kg adds can be 80 to 130 milliliters.
When addition during less than 80 milliliters, because the described silicone oil surface of humidifying powder fully, so do not produce capillary force and do not form particle.
In addition, when addition during, because powder is because a large amount of oil and being pasted together each other, so can not carry out granulation greater than 130 milliliters.
Next, the mixed-powder of granulation is cold-pressed into the shape of cutting tip, and pressure sintering, the cutting tip that is used for cutting element made thus.
The sintering temperature of hot pressing can be 750 to 980 ℃ according to an exemplary embodiment of the present invention.
When with the common matrix composition powder of low-temperature sintering, be difficult to realize sufficient densification.Therefore, need high temperature to improve sintered density.When the matrix composition is iron, need 1000 ℃ high temperature.
Because a large amount of micro-cracks is formed in the matrix composition powder, and the size of particle reduces during ma process, so adhesives sintering under 750 ℃ low temperature.
Therefore, increase greatly owing to be used for the driving force of sintering, so sintering carries out and the compacting densification at low temperatures.
The reduction of sintering temperature has increased the service life of graphite jig, causes reducing the cost that is used for fabrication tool thus.
When sintering temperature during, because make fully compacting of adhesives, so the density of cutting tip reduces rapidly and becomes frangible owing to the driving force of sintering is not enough less than 750 ℃.
When sintering temperature during greater than 980 ℃, the diamond particles that mixes with adhesives is transformed into graphite, and the hot degradation phenomena that diamond particles intensity reduces rapidly quickens.When the hot deterioration of diamond particles is more abominable, can not obtain splendid cutting speed and long service life.
As mentioned above, when using the splendid adhesives of microstructure and mechanical performance, the service life of cutting element and cutting speed improve simultaneously greatly, and because the reduction of the cost of raw material and technology cost, and the manufacturing cost of cutting element is significantly reduced.
Hereinafter, will describe the present invention in detail by embodiment.
Embodiment 1
Will by Hoganas company produce as 45 μ m iron powder ASC300 of matrix composition with by the conduct of Sigma-Aldrich company production 1.5 μ m croci Fe of II composition mutually
2O
3Add, reach 0.3,5,15 and 20% volume ratio, carry out mechanical alloying, add the paraffin of 2wt%, mix by tubular mixer, by the compaction pressure compacting of 200MPa, and, make the sample that is used to analyze physical property thus by the hot press sintering under the temperature of 35MPa and 850 ℃ 5 minutes.
Mechanical alloying is undertaken by vibrating mill.Like this, when the diameter with 2.5 liters of 5 liters vessel filling is the mixed-powder of the ball of 10mm and 2.5kg, carry out mechanical alloying under the frequency of the amplitude of 10mm and 1000rpm, the time is one hour.
For the surface of the sample of making as mentioned above, the measurement result of the volume ratio of phase II and hole content, hardness and cross-breaking strength is as shown in table 1 in the matrix.
The volume ratio of phase II is measured by image analyzer in the matrix, and hole content is measured by the porosimeter of being made by Micrometrics company.
Table 1
As shown in table 1, can learn when having according to the phase II volume ratio of the embodiment of the invention and hole content, be similar to the amount of phase II in the matrix as the addition of the iron oxide of phase II composition, and hardness and cross-breaking strength are splendid.
That is to say that invention example 1 and 2 shows that cross-breaking strength is greater than 80kgf/mm
2, and hardness is greater than HRB70.
On the other hand, in the situation of comparison example 1, because the dispersion hardening effect is less owing to the small size ratio of phase II, so hardness is less than HRB70.
In addition, in the situation of comparison example 2, because the volume ratio of phase II is excessive and porosity is high, cross-breaking strength is less than 80kgf/mm
2
Embodiment 2
Invention example 1 according to embodiment 1, be used for the method for the cutting tip of diamond tool according to manufacturing, the 45 μ m iron powder ASC300 as the matrix composition that produced by Hoganas company are added the 1.5 μ m croci Fe as phase II composition that produced by Sigma-Aldrich company
2O
3, reach 5% volume ratio, carry out mechanical alloying, mix with paraffin and diamond particles, every 1kg mixed-powder adds 110 milliliters volatile silicone oils, colds pressing, and by the hot press sintering under 850 ℃ temperature.
The cutting tip of making as mentioned above is laser-welded to the metal-cored saw sword of going up to make 14 inches (invention saw sword 1).
Like this, diamond particles is the MBS-960KM that is produced by DI company, and its particle size is US 30/40 screen size, and volume ratio is 3.4%.
On the other hand; the cobalt powder EF that is produced by Umicore company is a main component; add copper tin (Cu-Sn) powder of 10% percentage by weight; mix by common tubular mixer; mix with diamond particles and the paraffin identical with invention saw sword 1; carry out granulation, cold pressing, and, make cutting tip (contrast saw sword 1) thus by the hot press sintering under 850 ℃ temperature.
Saw sword for making by said method has carried out dried cutting and has washed concrete test, and the result of cutting test is displayed in Table 2.
The cutting test is undertaken by the cutter that uses STIHL6.5 HP, and washing concrete thickness is 50mm, and length of cut is 300mm, and carries out 200 times cutting.
Cutting speed exponential sum index in service life calculates by measure the cutting time consume and the reduction of cutting tip height in cutting state.
Table 2
| Divide | Cutting speed index (cm 2/ minute) | Service life index (m 2/mm) |
| Invention saw sword 1 | 620 | 16.1 |
| Contrast saw sword 1 | 560 | 8.5 |
As shown in table 2, can learn that 1 comparison of invention saw sword has better cutting speed and service life than saw sword 1 according to an exemplary embodiment of the present invention.
Especially, the index in service life that can learn invention saw sword 1 be contrast saw sword 1 service life index twice.
On the other hand, according to by using electron microscope SEM to observe the result of microstructure of adhesives of the polishing cutting tip of invention saw sword 1, be evenly distributed in the adhesives of cutting tip less than the inclusion that the iron oxide of 1.5 μ m forms by size.
The volume ratio of the inclusion that is formed by iron oxide and hole is respectively 6.1% and 2.3%.Can be checked through distance between inclusion and the hole less than 10 μ m.
In addition, for the measurement result of the cutting tip performance of invention saw sword 1, although can learn and added diamond particles, the hardness of adhesives is HRB76, and cross-breaking strength is 106kgf/mm
2
Embodiment 3
The 45 μ m iron powder ASC300 as the matrix composition that produced by Hoganas company are added the 1.5 μ m brown iron oxide Fe as phase II composition that produced by Sigma-Aldrich company
2O
3, reach 5% volume ratio, carry out mechanical alloying, add the paraffin of 2wt%, mix by tubular mixer, by the compaction pressure compacting of 200MPa, and, make the sample that is used to analyze physical property thus by the hot press sintering under the temperature of 35MPa and 850 ℃ 5 minutes.
Mechanical alloying is undertaken by attrition mill.Like this, when the diameter with 1 liter of 2 liters vessel filling is the mixed-powder of the ball of 3mm and 1kg, carry out mechanical alloying under 600rpm, the time is one hour.
For the surface of the sample of making as mentioned above, to the measurement result of the size in phase II and hole in the matrix and distance, hardness and cross-breaking strength shown in the table 3.
Record the size and the distance in phase II and hole by image dissector.
Table 3
In the result, because a part of ferriferous oxide powder is ground during ma process, so these situations occur, promptly wherein the size of phase II is littler than the size of the ferriferous oxide that adds.
As shown in table 3, in the situation of invention example 3 and 4, hardness is greater than HRB70, and cross-breaking strength is greater than 80kgf/mm
2
On the other hand, in the situation of comparison example 3, although the distance between the phase II less than 40 μ m, hardness is less than HRB70, and cross-breaking strength is less than 80kgf/mm
2
According to the result, can learn the distance between phase II that the size of phase II also is an important factor.
Can learn from table 3, rely on the size of phase II, cross-breaking strength has biglyyer than hardness and changes.This is because flaw size has considerable influence to fracture strength.
For obtaining enough to be used for performance of the present invention, the size in phase II and hole must be less than 3 μ m.
Embodiment 4
According to the invention example 3 of embodiment 3, the 45 μ m iron powder ASC300 as the matrix composition that produced by Hoganas company are added the 0.5 μ m brown iron oxide Fe as phase II composition that is produced by Sigma-Aldrich company
2O
3, reach 5% volume ratio, carry out mechanical alloying by attrition mill, mix with paraffin and diamond particles, every 1kg mixed-powder to be granulated adds 110 milliliters volatile silicone oils, colds pressing, and by the hot press sintering under 850 ℃ temperature.
The cutting tip of making as mentioned above is brazed into the metal-cored saw sword of going up to make 14 inches (invention saw sword 2).
Like this, diamond particles is the MBS-970K that is made by DI company, and its particle size is US 30/40 screen size, and volume ratio is 6.8%.
On the other hand; the cobalt powder EF that is produced by Umicore company is a main component; it is added the WC powder of 10% percentage by weight; mix by common tubular mixer; mix with diamond particles and the paraffin identical, carry out granulation, cold pressing with invention saw sword 2; and, make cutting tip (contrast saw sword 2) thus by the hot press sintering under 850 ℃ temperature.
By the wet test of cutting curing concrete of the saw sword by the said method manufacturing, the result of cutting test is displayed in Table 4.
Cut test by the cutter that uses TARGET65HP, cutting depth is 70mm, and length of cut is 300mm, and carries out 3 cuttings.
Cutting speed exponential sum index in service life calculates by measure the cutting time consume and the reduction of cutting tip height in cutting state.
Table 4
| Divide | Cutting speed index (m 2/ minute) | Service life index (m 2/mm) |
| Invention saw sword 2 | 0.45 | 9.3 |
| Contrast saw sword 2 | 0.37 | 5.8 |
As shown in table 4, can learn that according to an exemplary embodiment of the present invention invention saw sword 2 compares with contrast saw sword 2 and have better cutting speed and service life.
As observing the result of the microstructure of the adhesives of inventing the polishing cutting tip of sawing sword 2 by use electron microscope SEM, can be checked through by size and be evenly distributed in the adhesives of cutting tip less than the inclusion that iron oxide and the hole of 1 μ m forms, volume ratio is 7.5%, and the distance between the particle is less than 5 μ m.
In addition, according to the result who invention is sawed the cutting tip performance test of sword 2, although added diamond particles, the hardness of adhesives is HRB80, and the cross-breaking strength of adhesives is 104kgf/mm
2
Embodiment 5
The iron powder ASC300 of the 45 μ m that produced by Hoganas company is added the alumina powder Nabalox of the 3 μ m that produce by Nabaltec company, reach 5% volume ratio, carry out mechanical alloying, add the paraffin of 2wt%, mix by tubular mixer, by the compaction pressure compacting of 200MPa, and, make the sample that is used to analyze physical property thus by the hot press sintering under the temperature of 35MPa and 850 ℃ 5 minutes.
Carried out mechanical alloying by vibrating mill, attrition mill, ball mill and planetary grater, and corresponding mechanical alloying condition is shown in the table 5.
In table 5, except mixing by tubular mixer, utilization replaces mechanical alloying iron powder and the alumina powder, and the condition of comparison example 4 is identical with the invention example.
The measurement result of the properties of sample of Zhi Zaoing is shown in the table 6 as mentioned above.
Table 5
| Invention example 5 | Invention example 6 | Invention example 7 | Invention example 8 | Comparison example 4 | |
| Alloyage process | Vibrating mill | Attrition mill | Ball mill | Planetary grater | ?- |
| Abrasive media | The steel ball of 10mm | The steel ball of 3mm | The steel ball of 12mm | The steel ball of 12mm | ?- |
| Container | 5 liters | 2 liters | 5 liters | 1.4 rise | 5 liters |
| The amount of the mixed-powder that charges into | 2.5kg | 1kg | 2.5kg | 700g | ?10kg |
| Total run time | 1 hour | 1 hour | 5 hours | 1 |
40 minutes |
| Rpm | 1000 | 600 | 60 | 200 | ?40 |
| Other condition | The amplitude of 10mm | - | - | Move 20 minutes and parked 10 minutes, totally 3 times | ?- |
Table 6
| Sample number | Phase II volume ratio (vol%) | Hole amount (vol%) | The chi in phase II and hole (μ m) | Distance between phase II and the hole (μ m) | Hardness (HRB) | Cross-breaking strength (kgf/mm 2) |
| Comparison example 4 | 5.38 | 8.7 | 3.0 | 18.3 | 59 | 67 |
| Invention example 5 | 4.85 | 1.7 | 2.9 | 11.1 | 82 | 106 |
| Invention example 6 | 4.62 | 1.5 | 2.6 | 12.6 | 84 | 105 |
| Invention example 7 | 5.41 | 2.9 | 2.9 | 10.9 | 82 | 110 |
| Invention example 8 | 4.89 | 2.3 | 3.0 | 11.5 | 86 | 102 |
As shown in table 6, the invention example 5 to 8 of all mechanical alloyings shows hardness greater than HRB70, and cross-breaking strength is greater than 80kgf/mm
2
On the other hand, because very high porosity, the hardness and the cross-breaking strength of simple comparison example 4 of mixing are lower.
Therefore, for obtaining enough to be used for performance of the present invention, iron powder is with the II powder can be by mechanical alloying mutually.
Embodiment 6
Invention example 5 to 8 and comparison example 4 according to embodiment 5; the iron powder ASC300 of the 45 μ m that produced by Hoganas company is added the alumina powder Nabalox of the 3 μ m that produce by Nabaltec company; reach 5% volume ratio; method according to the cutting tip of making diamond tool; carry out mechanical alloying; mixed 40 minutes with paraffin and diamond particles by tubular mixer; every 1kg mixed-powder adds 110 milliliters volatile silicone oils; carry out granulation, cold pressing; and, make cutting tip thus by the hot press sintering under 800 ℃ temperature.
Be welded to the metal-cored saw sword of going up to make 9 inches (invention saw sword 3 to 6 and contrast saw sword 3) by the cutting tip that uses laser to make as mentioned above.
Invention saw sword 3 to 6 and contrast saw sword 3 are respectively by utilizing invention example 5 to 8 and comparison example 4 to make.
Like this, diamond particles is MBS-970K, and its particle size is US 30/40 screen size, and volume ratio is 2.8%.
By using the saw sword of making as mentioned above to do cutting granite and concrete test, the test result of cutting ability is shown in table 7 and the table 8.
In table 7, show granitic cutting test result.In table 8, show concrete cutting test result.
Cutter by BOSCH 2.7 HP cuts test.Under granitic situation, carry out 200 times cutting, wherein cutting depth is 20mm, and length of cut is 300mm.Under concrete situation, carry out 200 times cutting, wherein cutting depth is 30mm, and length of cut is 300mm.
In cutting state, be used to cut the time of consumption and cutting speed exponential sum index in service life is calculated in the reduction of cutting tip height by measuring.
Table 7
| Contrast saw sword 3 | Invention saw sword 3 | Invention saw sword 4 | Invention saw sword 5 | Invention saw sword 6 | |
| Cutting speed index (cm 2/ minute) | 320 | 401 | 402 | 410 | 398 |
| Service life index (m 2/ minute) | 1.2 | 2.5 | 3.8 | 4.3 | 2.6 |
Table 8
| Contrast saw sword 3 | Invention saw sword 3 | Invention saw sword 4 | Invention saw sword 5 | Invention saw sword 6 | |
| Cutting speed index (cm 2/min) | 580 | 750 | 743 | 782 | 775 |
| Service life index (m 2/mm) | 2.9 | 4.5 | 6.1 | 5.6 | 3.9 |
As shown in table 7 and table 8, can learn that when concrete and granite are used as workpiece the cutting speed and the comparison in service life of all invention saw swords 3 to 6 increase than saw swords 3.
Industrial applicibility
The present invention can provide with much lower price has splendid cutting speed and than cutting tip and the cutting element of long life.
Claims (45)
1. cutting tip that is used for cutting element, described cutting tip comprises:
Abrasive material, it is used for cutting workpiece; And
The sintering adhesives, it keeps described abrasive material,
Wherein, described adhesives is formed by metallic matrix, and described metallic matrix forms by one in metal and the metal alloy;
Described metallic matrix comprises the phase II and the hole of 0.5% to 30% volume ratio;
Described metallic matrix comprises the phase III of 0.1% to 10% volume ratio;
Described phase II is at least one that is selected from the group that comprises non-metallic inclusions, pottery and cement, and described phase III is a low-melting-point metal;
The size of each of described phase II and described hole is less than 3 μ m; And
The size of described phase III is less than 5 μ m.
2. cutting tip according to claim 1, wherein, described metallic matrix forms by one in the group of descending column element to constitute: Fe, Cu, Ni, Co, Cr, Mn and W, or in the group that is made of the following alloy of column element one forms: Fe, Cu, Ni, Co, Cr, Mn and W, or form by stainless steel.
3. according to each the described cutting tip in claim 1 and 2, wherein, described non-metallic inclusions is at least one that is selected from the group that comprises metal oxide, metal nitride, metal carbides, carbonitride and metal sulfide.
4. according to each the described cutting tip in claim 1 and 2, wherein, described phase III is at least one that is selected from the group that comprises tin (Sn) and signal bronze (Cu-Sn).
5. cutting tip according to claim 3, wherein, described phase III is at least one that is selected from the group that comprises tin (Sn) and signal bronze (Cu-Sn).
6. according to each the described cutting tip in claim 1 and 2, wherein, the amount of described phase III is equivalent to 0.1% to 5% volume ratio of sintering adhesives volume.
7. cutting tip according to claim 3, wherein, the amount of described phase III is equivalent to 0.1% to 5% volume ratio of sintering adhesives volume.
8. cutting tip according to claim 4, wherein, the amount of described phase III is equivalent to 0.1% to 5% volume ratio of sintering adhesives volume.
9. cutting tip according to claim 5, wherein, the amount of described phase III is equivalent to 0.1% to 5% volume ratio of sintering adhesives volume.
10. cutting tip that is used for cutting element, described cutting tip comprises:
A plurality of abrasive particles; And
Powder sintered adhesives,
Wherein, described powder sintered adhesives is formed by the iron-based body;
Described iron-based body comprises the phase II of 0.5% to 15% volume ratio;
Described phase II is at least one that is selected from the group that comprises non-metallic inclusions and pottery;
The size of described phase II is less than 3 μ m;
Distance between the described phase II is less than 40 μ m;
The hardness of the described adhesives that is formed by the iron-based body is greater than 70HRB; And
The cross-breaking strength of the described adhesives that is formed by the iron-based body that does not comprise abrasive material is greater than 80kgf/mm
2
11. cutting tip according to claim 10, wherein, porose to comprise in described iron-based body less than 5% volume ratio, the size in described hole is less than 3 μ m, and the distance between described phase II and the described hole is less than 40 μ m.
12. according to each the described cutting tip in claim 10 and 11, wherein, described non-metallic inclusions is at least one that is selected from the group that comprises metal oxide, metal nitride, metal carbides, carbonitride and metal sulfide.
13. according to each the described cutting tip in claim 10 and 11, described cutting tip is used for doing cutting, wherein, the volume fraction of described abrasive particle is 2% to 4% of a cutting tip volume.
14. cutting tip according to claim 12, described cutting tip are used for doing cutting, wherein, the volume fraction of described abrasive particle is 2% to 4% of a cutting tip volume.
15. according to each the described cutting tip in claim 10 and 11, wherein, the toughness index of described abrasive particle is greater than 85, and the size of described abrasive particle is greater than 350 μ m.
16. cutting tip according to claim 12, wherein, the toughness index of described abrasive particle is greater than 85, and the size of described abrasive particle is greater than 350 μ m.
17. cutting tip according to claim 13, wherein, the toughness index of described abrasive particle is greater than 85, and the size of described abrasive particle is greater than 350 μ m.
18. one kind by mixing and hot pressed sintering abrasive particle and adhesives manufacturing are used for the method for the cutting tip of cutting element, said method comprising the steps of:
The preparation adhesives, it comprises 0.5wt% to the phase II composition of 25wt% and a matrix composition in metal dust and the metal alloy powders, and mixes described adhesives by mechanical alloying;
To mix with abrasive particle and bonding agent by the described adhesives that mechanical alloying mixes;
By using the high viscosity volatile liquid of viscosity greater than 3.0cP, the mixed powder of granulation; And
After being cold-pressed into the shape of cutting tip, the mixed powder of hot pressed sintering granulation.
19. method according to claim 18, wherein, described matrix composition is by one in the group of descending column element to constitute: Fe, Cu, Ni, Co, Cr, Mn and W, or in the group that constitutes by the following alloy of column element one: Fe, Cu, Ni, Co, Cr, Mn and W, or stainless steel.
20., wherein, the 0.1wt% that formed by the low-melting-point metal powder is additionally added in the described adhesives to the phase III composition of 10wt% according to each the described method in claim 18 and 19.
21. method according to claim 20, wherein, described phase III composition is at least one in tin (Sn) and the signal bronze (Cu-Sn).
22. according to each the described method in claim 18 and 19, wherein, described hot pressed sintering carries out under 750 ℃ to 980 ℃ temperature.
23. method according to claim 20, wherein, described hot pressed sintering carries out under 750 ℃ to 980 ℃ temperature.
24. method according to claim 21, wherein, described hot pressed sintering carries out under 750 ℃ to 980 ℃ temperature.
25. according to each the described method in claim 18 and 19, wherein, described high viscosity volatile liquid is a volatile silicone oils, and the amount of the high viscosity volatile liquid that is added is 80 to 130 milliliters of the described mixed-powders of every 1kg.
26. method according to claim 20, wherein, described high viscosity volatile liquid is a volatile silicone oils, and the amount of the high viscosity volatile liquid that is added is 80 to 130 milliliters of the described mixed-powders of every 1kg.
27. according to each the described method in claim 18 and 19, wherein, described mechanical alloying is undertaken by an equipment in the group that is selected from involving vibrations grater, attrition mill, ball mill and planetary grater.
28. method according to claim 20, wherein, described mechanical alloying is undertaken by an equipment in the group that is selected from involving vibrations grater, attrition mill, ball mill and planetary grater.
29. method according to claim 21, wherein, described mechanical alloying is undertaken by an equipment in the group that is selected from involving vibrations grater, attrition mill, ball mill and planetary grater.
30. method according to claim 22, wherein, described mechanical alloying is undertaken by an equipment in the group that is selected from involving vibrations grater, attrition mill, ball mill and planetary grater.
31. according to each the described method in claim 23 and 24, wherein, described mechanical alloying is undertaken by an equipment in the group that is selected from involving vibrations grater, attrition mill, ball mill and planetary grater.
32. method according to claim 27, wherein, described mechanical alloying is undertaken by described vibrating mill, wherein use diameter to be the steel ball of 3mm to 12mm, the vibration amplitude be 0.5mm to 15mm, vibration frequency be 800rpm to 3000rpm, vibration acceleration is 8 to 12 times of acceleration of gravity, internal tank is filled with 50% to 85% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 3 hour.
33. each described method according to claim 28 to 30, wherein, described mechanical alloying is undertaken by described vibrating mill, wherein use diameter to be the steel ball of 3mm to 12mm, the amplitude of vibration is that 0.5mm is to 15mm, vibration frequency is that 800rpm is to 3000rpm, vibration acceleration is 8 to 12 times of acceleration of gravity, internal tank is filled with 50% to 85% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 3 hour.
34. method according to claim 31, wherein, described mechanical alloying is undertaken by described vibrating mill, wherein use diameter to be the steel ball of 3mm to 12mm, the vibration amplitude be 0.5mm to 15mm, vibration frequency be 800rpm to 3000rpm, vibration acceleration is 8 to 12 times of acceleration of gravity, internal tank is filled with 50% to 85% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 3 hour.
35. method according to claim 27, wherein, described mechanical alloying is undertaken by described attrition mill, wherein use diameter to be the steel ball of 3mm to 10mm, rpm is 300 to 900, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 2 hour.
36. each described method according to claim 28 to 30, wherein, described mechanical alloying is undertaken by described attrition mill, wherein use diameter to be the steel ball of 3mm to 10mm, rpm is 300 to 900, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 2 hour.
37. method according to claim 31, wherein, described mechanical alloying is undertaken by described attrition mill, wherein use diameter to be the steel ball of 3mm to 10mm, rpm is 300 to 900, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 2 hour.
38. method according to claim 27, wherein, described mechanical alloying is undertaken by described ball mill, wherein use diameter to be the steel ball of 7mm to 30mm, rpm is 30 to 100, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 5 to 10 hours.
39. each described method according to claim 28 to 30, wherein, described mechanical alloying is undertaken by described ball mill, wherein use diameter to be the steel ball of 7mm to 30mm, rpm is 30 to 100, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 5 to 10 hours.
40. method according to claim 31, wherein, described mechanical alloying is undertaken by described ball mill, wherein use diameter to be the steel ball of 7mm to 30mm, rpm is 30 to 100, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 5 to 10 hours.
41. method according to claim 27, wherein, described mechanical alloying is undertaken by described planetary grater, wherein use diameter to be the steel ball of 9mm to 25mm, centrifugal acceleration is 8 to 12 times of acceleration of gravity, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 2 hour under 400rpm at 50rpm.
42. each described method according to claim 28 to 30, wherein, described mechanical alloying is undertaken by described planetary grater, wherein use diameter to be the steel ball of 9mm to 25mm, centrifugal acceleration is 8 to 12 times of acceleration of gravity, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 2 hour under 400rpm at 50rpm.
43. method according to claim 31, wherein, described mechanical alloying is undertaken by described planetary grater, wherein use diameter to be the steel ball of 9mm to 25mm, centrifugal acceleration is 8 to 12 times of acceleration of gravity, internal tank is filled with 30% to 65% the abrasive media that reaches described volume of a container, and the clearance spaces of described container 30% to 70% filled the powder that will mix; And
Described mechanical alloying was carried out 1 to 2 hour under 400rpm at 50rpm.
44. a cutting element, it comprises according to claim 1,2, one of 10 and 11 described cutting tips.
45. according to the described cutting element of claim 44, wherein, described cutting element is in sectional type cutting element, rim type cutting element, cup type cutting element, wire saw and the core drill.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060018064 | 2006-02-24 | ||
| KR1020060018064A KR100756390B1 (en) | 2006-02-24 | 2006-02-24 | Cutting tip for cutting tool |
| KR10-2006-0018064 | 2006-02-24 | ||
| KR1020070018210A KR100874758B1 (en) | 2007-02-23 | 2007-02-23 | Cutting tool for cutting tool, manufacturing method of cutting tip and cutting tool |
| KR10-2007-0018210 | 2007-02-23 | ||
| KR1020070018210 | 2007-02-23 | ||
| PCT/KR2007/000943 WO2007097584A1 (en) | 2006-02-24 | 2007-02-23 | Cutting tip, method for making the cutting tip and cutting tool |
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| CN101389435A CN101389435A (en) | 2009-03-18 |
| CN101389435B true CN101389435B (en) | 2011-11-30 |
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| KR100874758B1 (en) | 2007-02-23 | 2008-12-19 | 이화다이아몬드공업 주식회사 | Cutting tool for cutting tool, manufacturing method of cutting tip and cutting tool |
| CN103464749A (en) * | 2013-09-18 | 2013-12-25 | 彭津 | Processing process of thin-wall diamond engineering drill bit |
| CN103522205A (en) * | 2013-09-29 | 2014-01-22 | 河南华茂新材料科技开发有限公司 | High-strength ceramic ultrathin cutting disc containing metal and manufacturing method thereof |
| CN105940076B (en) * | 2014-02-06 | 2017-12-29 | 旭日化成工业株式会社 | Abrasive particle and its manufacture method, Ginding process, lapping device and slurry are used in grinding |
| KR102478886B1 (en) | 2022-07-11 | 2022-12-16 | 김성률 | Tip structure with chip breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4636253A (en) * | 1984-09-08 | 1987-01-13 | Sumitomo Electric Industries, Ltd. | Diamond sintered body for tools and method of manufacturing same |
| US6485533B1 (en) * | 1997-12-03 | 2002-11-26 | Kozo Ishizaki | Porous grinding stone and method of production thereof |
| US6790126B2 (en) * | 2000-10-06 | 2004-09-14 | 3M Innovative Properties Company | Agglomerate abrasive grain and a method of making the same |
| CN1657257A (en) * | 2004-02-17 | 2005-08-24 | 河南黄河旋风股份有限公司 | Diamond saw bit and its manufacturing method |
| US6994614B2 (en) * | 2002-08-27 | 2006-02-07 | Tenryu Seikyo Kabushiki Kaisha | Metal-bonded grinding tool |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100522779B1 (en) * | 1997-12-03 | 2005-10-19 | 코조 이시자키 | Porous grinding stone and method of production thereof |
| KR100506042B1 (en) | 2003-02-20 | 2005-08-03 | 신한다이야몬드공업 주식회사 | Method of manufacturing a diamond tool |
-
2006
- 2006-02-24 KR KR1020060018064A patent/KR100756390B1/en active IP Right Grant
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4636253A (en) * | 1984-09-08 | 1987-01-13 | Sumitomo Electric Industries, Ltd. | Diamond sintered body for tools and method of manufacturing same |
| US6485533B1 (en) * | 1997-12-03 | 2002-11-26 | Kozo Ishizaki | Porous grinding stone and method of production thereof |
| US6790126B2 (en) * | 2000-10-06 | 2004-09-14 | 3M Innovative Properties Company | Agglomerate abrasive grain and a method of making the same |
| US6994614B2 (en) * | 2002-08-27 | 2006-02-07 | Tenryu Seikyo Kabushiki Kaisha | Metal-bonded grinding tool |
| CN1657257A (en) * | 2004-02-17 | 2005-08-24 | 河南黄河旋风股份有限公司 | Diamond saw bit and its manufacturing method |
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