CN106041089A - Manufacturing method of infiltration combustion Ti-Al-Cu-Sn-Ni micropore diamond grinding wheel - Google Patents
Manufacturing method of infiltration combustion Ti-Al-Cu-Sn-Ni micropore diamond grinding wheel Download PDFInfo
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- CN106041089A CN106041089A CN201610487022.4A CN201610487022A CN106041089A CN 106041089 A CN106041089 A CN 106041089A CN 201610487022 A CN201610487022 A CN 201610487022A CN 106041089 A CN106041089 A CN 106041089A
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- Prior art keywords
- powder
- diamond
- skive
- micropore
- infiltration
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
Abstract
The invention relates to a manufacturing method of an infiltration combustion Ti-Al-Cu-Sn-Ni micropore diamond grinding wheel. The manufacturing method comprises the following steps of uniformly mixing Al powder with Ti powder, adding diamond powder and mixed powder of Ti and Al to a mold, and guaranteeing diamond particles to be preferentially in contact with the mixed powder of Ti and Al; adding Cu powder, Sn powder and Ni powder, and performing uniform stirring; performing coldpress moulding according to 90-93% of forming density, and guaranteeing certain porosity, wherein after coldpress moulding, the peripheries of the diamond granules are wrapped with some mixed powder of Ti and Al, and an outer layer is wrapped with a leaching material namely Cu-Sn-Ni mixed powder; during vacuum hot pressing sintering, enabling surface carbon atoms of the diamond granules and metal Ti to be subjected to an infiltration combustion reaction to generate a TiC layer, and Ti and Al to be subjected to an infiltration combustion reaction to generate a TiAl alloy layer; and enabling redundant metal Al to melt, metal of Cu, Sn, Ni and a TiAl inter-metallic compound to be bonded together so as to form a Cu-Sn-Ni-Al base layer, wherein due to fluid tonicity, micro pores are formed among the diamond granules. Due to generation of TiC and TiAl, the transition of diamonds with Cu, Sn and Ni metal bases is realized, so that the controlling force of the diamond granules is greatly improved, and generation of the uniform micro pores is facilitated.
Description
Technical field
The invention belongs to precision manufactureing field, be related specifically to a kind of overflowing and ooze burning Ti-Al-Cu-Sn-Ni micropore diamond
The manufacture method of emery wheel.
Background technology
Monocrystal silicon, aluminium oxide, carbide, nitride, sapphire, glass etc. have high rigidity, high fragility, high abrasion because of it
Property, high resistance to corrosion, high antioxidant, high resistivity, excellent spy high temperature resistant, that many metal materials such as magnetic conduction do not hardly match
Property, it is widely used in the fields such as quasiconductor, Aero-Space, automobile.In order to make these hard brittle material parts have good performance,
Must have the least surface roughness and surface and sub-surface damage.But, due to higher hardness and the fragility of this kind of material,
The most difficult to its processing.Skive has that bond strength is high, wearability is good, life-span length, can bear big load grinding
Feature, is widely used in the plunge grinding and precision, superfine grinding of these high-performance hard brittle materials.
But, metal-base diamond grinding wheel self-sharpening is poor, easily block, and has a strong impact on stability and the grinding of grinding process
Surface quality, thus limit its normal use in the Precision Machining of high-performance hard brittle material.In order to solve these problems,
The novel dressing technique of the most employings, such as ELID restoring on line technology and laser restoring on line technology.But these technology are often
Need additional device, add complexity and the cost of use of equipment.If itself setting about from emery wheel, improve metal
The finishing dressing of anchoring agent diamond grinding wheel and from sharp ability, it is clear that there is the effect got twice the result with half the effort.
In skive, hold and the pore of diamond are to affect the parameter that diamond wheel grinding performance is critically important.
The methods such as current resistance sintering method, HIP sintering method, vacuum heating-press sintering method are through ensureing boart boart frequently with pore creating material
The pore of wheel.Adopt the pore prepared in this way the thickest, skewness.In order to meet the hard crisp materials such as sapphire
Material grinding is to skive high hold and the requirement in fine uniform structure hole, and the present invention prepares a kind of overflowing oozes burning Ti-Al-Cu-
Sn-Ni micropore skive.It utilizes the metal Al melted under high temperature that unrestrained oozing occurs with Ti metallic particles under tension
Reaction, generates TiAl alloy.Simultaneously under high temperature, Ti metal and diamond react generation TiC, enhance the holding of diamond particles
Power.Owing to the flowing of motlten metal aluminum is put up a bridge, emery wheel base substrate is internally formed uniform pore.
The present invention is directed to the high-performance grinding requirement to skive of the hard brittle material such as sapphire, glass, use unrestrained oozing
The method of burning TiAl intermetallic compound synthesis prepares skive, substantially increases skive to diamond abrasive grain
Hold and pore uniformity.
Summary of the invention
Goal of the invention: it is an object of the invention to for current monocrystal silicon, aluminium oxide, carbide, nitride, sapphire, glass
The difficult processing hard brittle material high request to grinding quality such as glass, and high diamond hold and the Buddha's warrior attendant of fine uniform structure pore size distribution
Stone sand wheel manufactures the problems such as difficulty, proposes a kind of unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive.
Technical scheme:
A kind of unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that:
The method material therefor and percentage by weight be:
Cu powder: 26 ~ 30%；
Sn powder: 7 ~ 9%；
Ti powder: 20 ~ 24%；
Al powder: 10 ~ 13%；
Ni powder: 2 ~ 4%；
Remaining is bortz powder；
The method comprises the following steps:
(1) bortz powder is put in concentrated nitric acid solution and soak, carry out clean process；
(2) Al, Ti powder is weighed mixing, put into ball mill and mix 3 hours；
(3) use dextrin liquid bortz powder and Al, Ti powder mixed to be pelletized, add mould；
(4) in mould, add Cu, Sn, Ni powder, and stir；
(5) use hydraulic press that powder in mould is pressed compact density 90% ~ 93% cold moudling；
(6) base substrate and the mould of cold moudling are put into drying baker, dry 3 hours under the conditions of 80 DEG C；
(7) use vacuum-sintering machine by skive sinter molding；
(8) furnace cooling.
The described unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that: described
Cu powder, Sn powder, Ni powder, Ti powder, the purity of Al powder > 99.5%, granularity is 1～20 μm；The granularity of described bortz powder is 1 ~ 10 μ
m。
The described unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that: in institute
The vacuum stating the vacuum-sintering in step (7) is better than 1.3 × 10-4Pa, vacuum-sintering heating curve is 150 DEG C～60 minutes,
230 DEG C～30 minutes, 650 DEG C～20 minutes, 757 DEG C～10 minutes.
Advantage and effect: after cold moudling, diamond surface carbon atom and metal Ti react generation TiC, Ti and Al and react raw
Become TiAl alloy.Owing to TiC and TiAl alloy have the highest hardness and intensity, greatly improve the holding of diamond particles
Power.While the metal Al melted and Sn metal form alloy with Cu, Ni, owing to tension force forms micro-pore.Ensure boart boart
The self-sharpening of wheel, makes the grinding performance of skive increase substantially.
Accompanying drawing illustrates:
Fig. 1, Fig. 2 be the present invention overflow ooze burning Ti-Al-Cu-Sn-Ni micropore skive schematic diagram；
Schematic illustration of tissue before wherein Fig. 1 is vacuum heating-press sintering；
Fig. 2 is schematic illustration of tissue after vacuum heating-press sintering；
Fig. 3 is the unrestrained micro-organization chart oozing burning Ti-Al-Cu-Sn-Ni micropore skive；
In figure: 1 diamond, 2 Ti-Al mixed powders, 3 Cu-Sn-Ni mixed powders, 4 TiC layer, 5 TiAl alloy layers, 6 Cu-Sn-
Ni-Al base layer, 7 pores.
Detailed description of the invention:
The principle of a kind of unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive of the present invention is: first by Al and
Ti powder puts into ball mill mix homogeneously, then bortz powder and Ti, Al mixed powder is added mould, it is ensured that diamond particles is preferential
Contact with Ti, Al mixed powder.Add Cu, Sn, Ni powder, stir.By compact density 90% ~ 93% cold moudling, it is ensured that certain
The porosity.After cold moudling, being wrapped in some Ti, Al mixed powders 2 around diamond particles 1, outer layer is extraction material C u-
Sn-Ni mixed powder 3.During vacuum heating-press sintering, diamond particles 1 surface carbon atom is unrestrained with metal Ti oozes reaction generation TiC layer 4,
Ti Yu Al is unrestrained oozes reaction generation TiAl alloy layer 5.Unnecessary metal Al melts, by Cu, Sn, Ni metal and TiAl intermetallic
Thing is bonded together, and forms Cu-Sn-Ni-Al base layer 6, and owing to liquid tension is formed the most micro-between diamond particles
Pore 7.Production due to TiC and TiAl, it is achieved that diamond and the transition of Cu, Sn, Ni metallic matrix, substantially increases Buddha's warrior attendant
The hold of stone granule, realizes the generation of uniform micro simultaneously.
A kind of unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that comprise following
Step:
1) material therefor is bortz powder, Cu powder, Sn powder, Ni powder, Ti powder, Al powder, Cu powder, Sn powder, Ni powder, Ti powder, Al powder
Purity > 99.5%, granularity is 1 ~ 20 μm, and diamond powder grade is 1 ~ 10 μm.By weight, the Cu of 26 ~ 30%, the Sn of 7 ~ 9%, 20 ~
The Ti of 24%, the Al of 10 ~ 13%, the Ni of 2 ~ 4%, remaining is diamond.
2) bortz powder is put in concentrated nitric acid solution and soak, carry out clean process.
3) Al, Ti powder is weighed mixing, put into ball mill and mix 3 hours.
4) use dextrin liquid bortz powder and Al, Ti powder mixed to be pelletized, add mould.
5) in mould, add Cu, Sn, Ni powder, and stir.
6) use hydraulic press that powder in mould is pressed compact density 90% ~ 93% cold moudling.
7) base substrate and the mould of cold moudling are put into drying baker, dry 3 hours under the conditions of 80 DEG C.
8) use vacuum-sintering machine by skive sinter molding.
9) furnace cooling.
Described a kind of unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that: true
The vacuum of empty sintering is better than 1.3 × 10-4Pa, vacuum-sintering heating curve be 150 DEG C 60 minutes, 230 DEG C 30 minutes, 650 DEG C
20 minutes, 757 DEG C 10 minutes.
Described a kind of unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that: logical
The reaction of oozing slowly oozing between reaction and Ti and diamond slowly crossed between Ti and Al realizes the high intensity holding of diamond particles.
Claims (3)
1. the unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive, it is characterised in that:
The method material therefor and percentage by weight be:
Cu powder: 26 ~ 30%；
Sn powder: 7 ~ 9%；
Ti powder: 20 ~ 24%；
Al powder: 10 ~ 13%；
Ni powder: 2 ~ 4%；
Remaining is bortz powder；
The method comprises the following steps:
(1) bortz powder is put in concentrated nitric acid solution and soak, carry out clean process；
(2) Al powder, Ti powder are weighed mixing, put into ball mill and mix 3 hours；
(3) use dextrin liquid bortz powder and Al, Ti powder mixed to be pelletized, add mould；
(4) in mould, add Cu, Sn, Ni powder, and stir；
(5) use hydraulic press that powder in mould is pressed compact density 90% ~ 93% cold moudling；
(6) base substrate and the mould of cold moudling are put into drying baker, dry 3 hours under the conditions of 80 DEG C；
(7) use vacuum-sintering machine by skive sinter molding；
(8) furnace cooling.
The unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive the most according to claim 1, it is special
Levy and be: described Cu powder, Sn powder, Ni powder, Ti powder, the purity of Al powder 99.5%, granularity is 1～20 μm；Described bortz powder
Granularity is 1 ~ 10 μm.
The unrestrained manufacture method oozing burning Ti-Al-Cu-Sn-Ni micropore skive the most according to claim 1, it is special
Levy and be: the vacuum of the vacuum-sintering in described step (7) is better than 1.3 × 10-4Pa, vacuum-sintering heating curve is 150
DEG C～60 minutes, 230 DEG C～30 minutes, 650 DEG C～20 minutes, 757 DEG C～10 minutes.
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| CN201610487022.4A CN106041089B (en) | 2016-06-29 | 2016-06-29 | The unrestrained manufacturing method for oozing burning Ti-Al-Cu-Sn-Ni micropore skives |
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|---|---|---|---|
| CN201610487022.4A CN106041089B (en) | 2016-06-29 | 2016-06-29 | The unrestrained manufacturing method for oozing burning Ti-Al-Cu-Sn-Ni micropore skives |
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| CN106041089A true CN106041089A (en) | 2016-10-26 |
| CN106041089B CN106041089B (en) | 2018-05-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186633A (en) * | 2017-05-24 | 2017-09-22 | 广东奔朗新材料股份有限公司 | A kind of high-performance metal binder diamond hobboing cutter and preparation method thereof |
| CN114516001A (en) * | 2022-01-25 | 2022-05-20 | 长沙市萨普新材料有限公司 | Diamond grinding wheel disk for thinning silicon carbide and preparation method thereof |
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| WO2000040371A1 (en) * | 1999-01-07 | 2000-07-13 | Norton Company | Superabrasive wheel with active bond |
| CN1514756A (en) * | 2001-10-11 | 2004-07-21 | Process for production of sintered porous bodies | |
| CN1961090A (en) * | 2004-06-01 | 2007-05-09 | 森拉天时奥地利有限公司 | Wearing part consisting of a diamantiferous composite |
| CN101934501A (en) * | 2010-08-26 | 2011-01-05 | 郑州磨料磨具磨削研究所 | Self-propagating sintering metal-bonded diamond grinding wheel and preparation method thereof |
| CN102172902A (en) * | 2011-02-22 | 2011-09-07 | 南京航空航天大学 | Method for manufacturing grinding wheel work layer with abrasive particle dressing function |
| CN105150121A (en) * | 2015-08-19 | 2015-12-16 | 广州金谷钻石工具有限公司 | Metal bonding agent diamond grinding tool and manufacturing method thereof |
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Patent Citations (7)
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| WO2000040371A1 (en) * | 1999-01-07 | 2000-07-13 | Norton Company | Superabrasive wheel with active bond |
| CN1332666A (en) * | 1999-01-07 | 2002-01-23 | 诺顿公司 | Superabrasive wheel with active bond |
| CN1514756A (en) * | 2001-10-11 | 2004-07-21 | Process for production of sintered porous bodies | |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186633A (en) * | 2017-05-24 | 2017-09-22 | 广东奔朗新材料股份有限公司 | A kind of high-performance metal binder diamond hobboing cutter and preparation method thereof |
| CN114516001A (en) * | 2022-01-25 | 2022-05-20 | 长沙市萨普新材料有限公司 | Diamond grinding wheel disk for thinning silicon carbide and preparation method thereof |
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| CN106041089B (en) | 2018-05-22 |
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