CN106695583A - Superhard abrasive polishing tool and preparation method - Google Patents
Superhard abrasive polishing tool and preparation method Download PDFInfo
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- CN106695583A CN106695583A CN201611182976.0A CN201611182976A CN106695583A CN 106695583 A CN106695583 A CN 106695583A CN 201611182976 A CN201611182976 A CN 201611182976A CN 106695583 A CN106695583 A CN 106695583A
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- hard abrasive
- super hard
- handle
- housing
- milling tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
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- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a superhard abrasive polishing tool and a preparation method. The superhard abrasive polishing tool comprises a polishing head and a connecting handle which are coaxially arranged; the polishing head is of an axial-symmetry rotating structure and comprises a hollow shell, a superhard abrasive distributed and scattered on the outer surface of the shell, and air hole foam metal filled in a hollow cavity of the shell; the connecting handle is a T-shaped connecting handle which comprises a disk and a connecting handle shaft coaxially and fixedly connected with the disk; and the periphery of the disk is connected with the inner wall face of the shell. After the above structure and method are adopted, the weight of the polishing tool can be effectively relieved, and influences on polishing equipment are reduced. The applicability of the superhard abrasive polishing tool is improved, and the superhard abrasive polishing tool can have a greater effect in the metal and non-metal polishing field. In addition, the polishing head is of a shell structure, the built-in hole foam metal material can effectively achieve the effects of cooling and shock absorbing, the hand feeling of use is better, popularization is easier, and the superharda brasive polishing tool is quite favorable for the metal and non-metal polishing tool market occupying several ten billion RMB.
Description
Technical field
The present invention relates to super hard abrasive instrument preparation field, particularly a kind of super hard abrasive milling tools and preparation method.
Background technology
The super hard abrasive instrument of a new generation is generally that, using the single layer soldering super hard abrasive instrument of soldering processes, it is using weldering
Expect that the mode of fusing welds together super hard abrasive with workpiece substrate to be made.There is conventional solderer soldering to saw at present
Piece, soldering emery wheel, soldering drill bit etc..Abrasive material exposure is high, holding intensity, sharpness high are high and the longevity because it has for doctor
The advantages such as life length, cutting, grinding in fields such as metal material, hard brittle materials have obtained increasing application, and are being permitted
It is multi-field to instead of traditional plating tool.
With diamond and cubic boron nitride（CBN）Based on make super hard abrasive instrument be widely used in all kinds of metal materials
The cutting processing of the hard brittle materials such as the cutting of material, grinding, stone material, devitrified glass, plastics, carbon fiber.And supported in highway
The fields such as shield, geological drilling, mining, public safety have obtained increasing application, and the market demand gradually increases.
The general grinding head part by consolidation super hard abrasive of super hard abrasive milling tools involved in the present invention be installed on
The shank that connects of grinding apparatus is grouped into.Because polishing object is changeable, structure is changeable, and the profile of grinding head has various changes, and connects
Handle is typically more fixed.Traditional grinding head is generally prepared by resin or ceramic solidification corundum abrasive, will using sintering pressing principle
Corundum abrasive is compressing and then applies temperature heat cure, and prepared grinding head abrasive material consolidation strength is low, abrasive particle meeting during polishing
Constantly come off to go out to expose new abrasive material, it is fast that this kind of mode causes grinding head to consume, and be difficult to keep definite shape.In addition abrasive material
Proud exposure is not high, and grinding efficiency is subject to a definite limitation.
To improve grinding efficiency, reduce milling tools and change number of times, super hard abrasive system is consolidated by the way of soldering, plating
The mode of standby milling tools starts to occur, as it was previously stated, compared to plating tool, doctor is more advantageous, but soldering with
Plating milling tools gradually exposes a series of problems in use.
It using mach mode, i.e. grinding head part is integral type knot with handle is connect that the preparation of super hard abrasive grinding head is
Structure, can be referred to as grinding head matrix.Abrasive material soldering is carried out again after matrix processing, prepares milling tools.
And in actual use, in particularly hand-held milling tools, due to soldering super hard abrasive milling tools matrix
It is steel, compared to conventional resins corundum or silicon carbide grinding wheel, density is big, and weight is big, when milling tools high-speed rotation, not only
Grip higher is needed, and it is supporting to need more powerful equipment to carry out.
On the premise of traditional corundum or carborundum instrument is matched in current electric tool or pneumatic tool, due to same more
Soldering super hard abrasive grinding head far overweights corundum or silicon carbide trimming stone under control gauge lattice, former grinding apparatus power when causing to assemble
The rotation of soldering super hard abrasive grinding head cannot normally be driven.Therefore, Study on Brazed Superabrasive Tools shows that power is mismatched, grasped
Make the problems such as uncomfortable, feel is not good.Additionally, overweight soldering super hard abrasive milling tools is larger to the aging effects of equipment,
Reduce the cost performance of super hard abrasive milling tools.
3rd, because super hard abrasive instrument is mono-layer diamond tool, abrasive particle will not fall off when using, then with polishing object
It is rigid contact, the resilience produced during grinding head use is much bigger compared with corundum wheel（Corundum wheel can be by abrasive particle not
The disconnected certain elastic force of buffering that comes off）, macro manifestations are that the polishing vibration of super hard abrasive instrument is big, and feel is not good.
Therefore, for promote novel super-hard abrasive material milling tools, it has to be possible to fundamentally mitigate instrument weight, and
While loss of weight, it is ensured that weld strength, tooling strength, the vibration of milling tools is reduced on this basis.It is directed to both at home and abroad at present
This problem also expands certain research, but does not have more feasible mode at present.The problem of Study on Brazed Superabrasive Tools is,
First, super hard abrasive carries out soldering at least needs more than 800 degree of temperature, and at this temperature, steel is equivalent to having carried out high temperature
Tempering, its hardness is greatly reduced with intensity, if loss of weight is thinning by tool base or bores lightening hole, matrix does not rupture only
The risk being even broken, and the weight that this kind of mode is mitigated is relatively limited.
Patent（Application number：201610055555.5）A kind of diamond-impregnated wheel is applied for, it is recessed to be that loss of weight its emery wheel is devised
Trench structure, but because wall thickness is still thicker, also need in bottom drilling lightening hole.Secondly, the design of Lightened structure not only face
Face the problem of matrix strength, and be faced with loss of weight weight mismatch problem.In addition.Due to emergy prepared by resinoid bond
Wheel or silicon carbide grinding wheel its weight just correspond to 1/3rd of equal Study on Brazed Superabrasive Tools.Super hard abrasive instrument is bigger,
The requirement of loss of weight is more obvious.
To solve the problems, such as super hard abrasive instrument applicability, if matrix material is changed, more lightweight is replaced by
Metal is prepared, and still without feasibility, this is that, because relatively inexpensive light-weight metal is aluminium at present, and the fusing point of aluminium is only
It is more than 600 degree, the soldering bonding agent temperature for being used is far above aluminum metal, therefore without feasibility.If changing new soldering
Bonding agent, then higher according to welding temperature, bonding agent intensity general characteristic higher, prepared tooling strength is difficult to reach now
There is the high-performance of instrument, therefore without cost performance.
The content of the invention
The technical problem to be solved in the present invention is directed to above-mentioned the deficiencies in the prior art, and provides a kind of super hard abrasive polishing
Instrument, the super hard abrasive milling tools can solve soldering super hard abrasive milling tools applicability in use, can be not
Reduce on the basis of soldering super hard abrasive intensity, mitigate the gross weight of milling tools, make it with same specification corundum wheel or carborundum
Emery wheel is compared, and weight is essentially identical.And mitigation vibration is reached on this basis, improve the purpose of comfort level.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of super hard abrasive milling tools, including the grinding head being coaxially disposed and connect handle, grinding head is axisymmetric revolving structure,
Grinding head includes the super hard abrasive that hollow housing, cloth is sprinkled upon in housing outer surface and is filled in the cavitation bubbles in housing in cavity
Foam metal；Connect handle and connect handle for T-shaped, the T-shaped handle that connects connects arbor including disk and with disk is fixedly and coaxially connected；Disk periphery and shell
Internal wall is connected.
The pore foam Thermal Conductivity by Using is not less than 3w/ (mk), and density is not higher than 1g/cm3。
The pore foam metal is that density is 0.1 ~ 0.6 g/cm3Copper.
The T-shaped overall tensile strength of handle that connects is T-shaped to connect gold of the disk for density less than 4g/cm3 in handle more than 200MPa
Category or nonmetallic materials.
The T-shaped material for connecing disk in handle is 6061 duralumin, hard alumin ium alloy materials high, phenolic resin and carbon fibre composite
In one kind.
The shell thickness scope of the housing is 1.0 ~ 6.5mm, and grinding head external diametrical extent is 0.5 ~ 80mm, milling tools overall length model
It is 6mm ~ 160mm to enclose.
The disk periphery and inner walls face between the two, connect arbor and disk connected mode between the two and be spiral shell
Line is connected or interference fit or soldering connection.
The present invention also provides a kind of preparation method of super hard abrasive milling tools, the preparation side of the super hard abrasive milling tools
Method can solve soldering super hard abrasive milling tools applicability in use, can not reduce soldering super hard abrasive intensity
On the basis of, mitigate the gross weight of milling tools, make it compared with same specification corundum wheel or silicon carbide grinding wheel, weight is essentially identical.
And mitigation vibration is reached on this basis, improve the purpose of comfort level.
A kind of preparation method of super hard abrasive milling tools, comprises the following steps.
It is prepared by step 1, housing：Solid grinding head is first processed, then using separate structure, by solid grinding head
Portion empties, and forms hollow housing.
Step 2, it is T-shaped to connect handle preparation.
Step 3, cloth spills super hard abrasive：By super-hard abrasive, cloth is spilt outside housing in step 1 by the way of soldering heating
Surface.
Step 4, fills pore foam metal：By the hollow of the metal filled housing that super hard abrasive is spilt in cloth of pore foam
In chamber.
Step 5, housing is connected with the T-shaped handle that connects：After the completion of pore foam is metal filled, by the T-shaped disk and shell connect in handle
The internal face of body is fixedly connected, and makes pore foam Metal Packaging in the middle cavity of housing；It is prepared by super hard abrasive milling tools
Into.
In the step 1, the processing of solid grinding head is carried out by the way of cold forging；During cold forging, first according to grinding head
Structure design goes out forge die.
It is T-shaped when connecing handle and preparing in the step 2, disk and connect arbor and individually process, and be connected through a screw thread.
After the present invention is using said structure and method, have the advantages that：
（1）Above-mentioned housing is closely connected with the T-shaped handle that connects, and the pore foam metal of enclosure interior filling can carry out vibration damping to housing,
The resilience vibration of bistrique when reducing polishing.
（2）After enclosure interior is hollowed out, quality is considerably reduced, and after adding pore foam metal, increases little to oeverall quality,
Compared to solid grinding head, overall weight is greatly reduced.The weight of milling tools can effectively be mitigated, milling tools air exercise is reduced
The influence of mill equipment.The applicability of the super hard abrasive instrument with soldering diamond grinding head as representative of raising, metal with it is nonmetallic
Polishing field can play bigger effect.
（3）From the high strength steel with high chrome, potassium steel as representative, its intensity still has one to above-mentioned housing after high temperature
Fixed holding.Further, the light material of pore foam metal is added in enclosure interior, loss of weight, the work of radiating can be not only played
With the supporting role to housing can also be played, it is ensured that the intensity of housing meets use requirement with rigidity.
（4）The grinding head that quality lightens, it is similar to traditional corundum or silicon carbide trimming stone weight, can preferably be applied to same
In the grinding apparatus of specification, processing of stone, metal or nonmetallic processing, composite processing field are such as applied to；So as to
Be conducive to promoting and apply, the metal that tens billion of RMB are worth for capturing is extremely advantageous with nonmetallic milling tools market.
（5）Grinding head after loss of weight is lightweight, it is easy to operate, and feel is light, and polishes sharp during polishing, and spark is small, without powder
Dirt, without toxic gas, beneficial to operating personnel safety with it is healthy.
Brief description of the drawings
Fig. 1 shows the structural representation of super hard abrasive milling tools in the prior art.
Fig. 2 shows a kind of structural representation of super hard abrasive milling tools in the present invention.
Fig. 3 shows the T-shaped structural representation for connecing handle.
Wherein have：1. grinding head；2. handle is connect；3. super hard abrasive；4. housing；5. pore foam metal；6. junction one；
7.T types connect handle；8. junction two；9. disk；10. arbor is connect.
Specific embodiment
The present invention is further detailed explanation with specific better embodiment below in conjunction with the accompanying drawings.
Super hard abrasive milling tools of the prior art, as shown in figure 1, including grinding head 1 and connecing handle 2, grinding head is axle
Symmetrical revolving structure.
As shown in Fig. 2 a kind of super hard abrasive milling tools of the invention, also including the grinding head that is coaxially disposed and handle is connect,
Grinding head is also axisymmetric revolving structure, and the profile of grinding head is changeable, can be cylinder, taper, spheroidal, semi-round ball
Any one in shape, arc surfaced and other shaped face structures, with specific reference to needing to be configured.
In addition, grinding head of the invention includes the super hard abrasive 3 that is sprinkled upon in housing outer surface of hollow housing 4, cloth and fills out
The pore foam metal 5 filled in cavity in the housing.
Grinding head external diametrical extent is 0.5 ~ 80mm, and milling tools overall length scope is 6mm ~ 160mm.
Above-mentioned housing design, can effective buffering vibration impact, but because enclosure interior is hollow state, then to housing
Intensity requirement is higher, and thickness can not be excessively thin.The thickness of housing is determined by grinding load and heating temperature.The thickness of housing
Face of weld is not ftractureed when degree must assure that polishing, does not crush, and bistrique secondly should be avoided to be deformed in the case of long-term polishing.
The thickness of housing is preferably 1.0 ~ 6.5mm.In addition, case material should be from harder steel, such as 40Cr, and unconventional 45
Steel.
From the high strength steel with high chrome, potassium steel as representative, its intensity still has certain above-mentioned housing after high temperature
Holding.Further, the light material of pore foam metal is added in enclosure interior, can not only plays loss of weight, radiating,
The supporting role to housing can also be played, it is ensured that the intensity of housing meets use requirement with rigidity.
The thermal conductivity factor of above-mentioned pore foam metal is preferably not less than 3w/ (mk), and density is not higher than 1g/cm3.Enter one
Step, pore foam metal is preferably density for 0.1 ~ 0.6 g/cm3Copper, the surface heat transfer efficiency of copper may be up to 20w/ (mk)
More than, 0.01 times ~ 0.1 times of general reachable other metals.
Above-mentioned selected pore foam metal material pore opening can be adjusted with density according to actual polishing requirement.Typically
For, stomata is big, and material is light, and density is small, but intensity decreases.
The setting of above-mentioned pore foam metal, the effect with following four aspects：
1. pair housing is supported, and increases the intensity of housing.
2. acted on buffering vibration.
3. density is small, light weight, and weight increases part less, and on milling tools, quality influence is small in itself.
4. rate of heat dissipation high, can will be ground the heat for producing and effectively disperse.
When pore foam metal is not filled by housing, enclosure interior is air, the produced amount of heat in polishing
Can only be conducted by air, and the heat transfer efficiency of air is about 0.01 w/ (mk), much smaller than metal, thus its radiating
Effect can not show a candle to that pore foam metal is excellent, therefore the heat transfer property of milling tools is under some influence, and is unfavorable for grinding performance
Raising.In addition, in bruting process, heat more as produced by super hard abrasive and metal friction and flow of metal alienation, and
Conducted to body portion through super hard abrasive, if intrinsic silicon air can not conduct heat rapidly, easily make milling tools surface temperature urgency
Play is raised, and abrasive particle intensity is substantially reduced when heavy duty is ground, and causes grain breakage.Therefore, the efficient heat transfer effect of milling tools
It is particularly critical.
It is above-mentioned to connect handle and connect handle for T-shaped, as shown in figure 3, it is T-shaped connect handle including disk 9 and with connecing that disk is fixedly and coaxially connected
Arbor 10.
Disk periphery is connected with inner walls face, is the junction 1 in Fig. 2.The mode of the connection of junction one has
The various ways such as threaded connection, interference fit connection, Welding connection.
To ensure preferably to be machined with female thread structure with the T-shaped tight connection for connecing handle, shell rim, disk periphery is machined with
External thread structure, disk periphery is connected with inner walls face screw thread.This thread connecting mode can receive polishing region
To the frictional force effect lower holding closely connection of polishing object, the stability of system is improve.
If polishing load is smaller, it would however also be possible to employ interference fit is directly connected to.
If matrix is larger, in the case that grinding head matrix thickness is thicker, housing can be connect into handle with T-shaped by the way of welding
It is connected.
The above-mentioned T-shaped overall tensile strength of handle that connects more than 200MPa, it is T-shaped connect handle in disk preferably density be less than 4g/cm3
Metal or nonmetallic materials.Such as it is the one kind in 6061 duralumin, hard alumin ium alloy materials high, phenolic resin and carbon fibre composite.
More preferably 6061 duralumin, hard alumin ium alloy materials high.
It is the junction 28 in Fig. 3 that arbor is connect with disk tie point between the two.Connecing arbor can be integrated with disk
Set, or threaded connection or interference fit or soldering connection；But it is preferably and is threadedly coupled.
The T-shaped handle that connects is connected with housing, the clamping of its Main Function for the benefit of grinding apparatus, because its stress is smaller, mainly
To ensure the coaxial precision and rotating accuracy after being combined with housing.Therefore its processing can also ensure the situation of some strength
Under, from the material of lighter weight.Because the T-shaped handle and housing of connecing is separate, it is not necessary to carry out soldering heating, therefore normal
Intensity is ensure that under temperature state, there is a requirement that under, screened with reference to the density of metal material, due to steel density
7.9g/cm3, the g/cm of corundum density about 3.953Left and right, therefore, the material to be found should be that density is less than 4 g/cm3, and
Material with higher-strength.By screening, it is believed that 6061 duralumin, hard alumin ium alloy materials high can reach such requirement, certain present invention is simultaneously
This material is not limited to, such as phenolic resin, carbon fibre composite is respectively provided with possibility and feasibility for this structure.
A kind of preparation method of super hard abrasive milling tools, comprises the following steps.
It is prepared by step 1, housing：Solid grinding head is first processed, then using separate structure, by solid grinding head
Portion empties, and forms hollow housing.
Because the density of steel is about three times of corundum, therefore the grinding head matrix for processing is the corundum bistrique of same specification
Twice it is many.Therefore separate structure is used, grinding head intrinsic silicon is emptied, overall weight can be substantially reduced.
Solid grinding head has the preferred processing mode of the following two kinds.
Mode 1：Processed using Digit Control Machine Tool.
Mode 2：The processing of solid grinding head is carried out by the way of cold forging.
Shell structure of the invention, is processed according to mode 1 with Digit Control Machine Tool, then difficulty is greatly, and cost performance is low.The present invention
It is preferred that the cold forging of employing mode 2（It is called cold extrusion）Mode be prepared.Structure according to design processes forge die, utilizes
Mould ensures size and positional precision, can reach the purpose of batch machining, and substantially non-waste generation, low production cost,
Efficiency high, is ideal processing mode.
Step 2, it is T-shaped to connect handle preparation.Because the structure for connecing handle is generally shaft-like that is screwed discoid and holding.This
Then waste of material is serious according to direct turnery processing for the processing mode of structure, can use the direct extrusion forming of cold extrusion mode,
Be conducive to connecing the processing economy of handle.
When disk form is larger with the external diameter ratio for connecing arbor, if still use cold extrusion mode, to mould requirement compared with
It is high.Therefore, when grinding head outside dimension is larger, disk can be split with arbor is connect, is processed respectively.T-shaped will connect
Handle splits into two parts, respectively disk with connect arbor, threadedly connect.This kind of mode is in mass production environment
Under, economy can be had more.
Step 3, cloth spills super hard abrasive：By super-hard abrasive, cloth is spilt outside housing in step 1 by the way of soldering heating
Surface.
Step 4, fills pore foam metal：By the hollow of the metal filled housing that super hard abrasive is spilt in cloth of pore foam
In chamber.
Step 5, housing is connected with the T-shaped handle that connects：After the completion of pore foam is metal filled, by the T-shaped disk and shell connect in handle
The internal face of body is fixedly connected, and makes pore foam Metal Packaging in the middle cavity of housing；It is prepared by super hard abrasive milling tools
Into.
Two particular preferred embodiments are described in detail to above-mentioned super hard abrasive milling tools and preparation method below.
Embodiment 1
A kind of soldering diamond grinding head for polish Cast Iron Surface burr and solder joint is prepared, shape is as shown in Fig. 2 overall length
71.5mm, grinding head matrix external diameter 24.5mm, it is T-shaped to meet shank diameter 6mm.Preparation method is as follows：
Step 1, thickness of shell is set to 0.9mm, and due to being that plane and top surface are ground, stress itself is smaller, therefore housing is selected
Relatively thin material, housing is processed using cold resistance to compression mode, and material is 65Mn steel.
Step 2, it is T-shaped to connect handle preparation.The T-shaped handle that connects uses 6061 formula aluminum alloy materials, due to connecing handle integrated disc portions and axle portion
Point size is more or less the same, using cold extrusion overall processing.
Step 3, cloth spills super hard abrasive：By super-hard abrasive, cloth is spilt outside housing in step 1 by the way of soldering heating
Surface.Super hard abrasive selects diamond, and granularity is 35 mesh or so, grade wear-resisting type high.Vacuum brazing mode, Nickel Matrix Solder pricker
Weldering, 1020 degree of maximum temperature.
Step 4, fills pore foam metal：By the hollow of the metal filled housing that super hard abrasive is spilt in cloth of pore foam
In chamber.Pore foam metal is 0.8 g/cm from density3Copper, density is big, and intensity is high, is processed into structure shown in Fig. 2.
Step 5, housing is connected with the T-shaped handle that connects：After the completion of pore foam is metal filled, pore foam metal is placed in consolidation
There is the enclosure interior of diamond, connect handle and be threadedly coupled by M20 with housing；Super hard abrasive milling tools is prepared and completed.
Milling tools housing uses 65Mn steel, hardness HRC38 before weldering, postwelding hardness HRC10 ~ 12, compared to monoblock type plus
Work milling tools（45 steel matrix, HRC20 before weldering, postwelding HRC0 ~ 7）, the hardness of housing improves a lot, and ought have pore foam
In the case that metal is supported, the rigidity of milling tools improves 20 ~ 30% or so than pore-free foam metal.Overall weight mitigates
Compared to clean steel matrix about 70% or so, compared with corundum wheel, weight is substantially close to having reached design requirement, through actual polishing
Test finds that polishing noise is low, lightweight, soft handle, and vibration is small, and spark is small, and using effect is ideal.
Embodiment 2：
Prepare a kind of for high intensity for ship steel surface weld seam and the soldering CBN of solder joint of polishing（Cubic boron nitride）Bistrique, bistrique
External diameter 39mm, overall length 40mm, because high strength steel is not suitable for diamond polishing, therefore abrasive material selects CBN（Cubic boron nitride）
Abrasive material.Specific preparation method is as follows：
Step 1, bistrique top uses case type, and due to being that side and top surface are ground, stress is smaller, but needs suppression of vibrations, shell
Body thickness is set to be 1.2mm that housing is processed using cold resistance to compression mode, and material is 65Mn steel.
Step 2, it is T-shaped to connect handle preparation.The T-shaped handle that connects uses separate structure, is differed with arbor size is connect due to connecing handle disk
It is larger, disk is processed using cold extrusion mode respectively and arbor is connect.Wherein disk uses phenolic resin material, further mitigates weight
Amount, connects arbor using 6061 duralumin materials.
Step 3, cloth spills super hard abrasive：Super hard abrasive selects CBN, and granularity is 40 mesh or so, and grade high is from sharp type.Vacuum pricker
Weldering mode, copper-based solder soldering, 825 degree of maximum temperature.
Step 4, fills pore foam metal：By the hollow of the metal filled housing that super hard abrasive is spilt in cloth of pore foam
In chamber., from the copper that density is 0.2 g/cm3, density is small, mainly makees heat conduction, cushioning effect for pore foam metal.
Step 5, housing is connected with the T-shaped handle that connects：After the completion of pore foam is metal filled, pore foam metal is placed in consolidation
There is the enclosure interior of diamond, connect arbor and be threadedly coupled with disk, be then connected by interference fit with housing；Super hard abrasive is beaten
Grinder tool is prepared and completed.
Milling tools housing uses 65Mn steel, hardness HRC38 before weldering, postwelding hardness HRC10 ~ 12, compared to monoblock type plus
Work milling tools（45 steel matrix, HRC20 before weldering, postwelding HRC0 ~ 7）, the hardness of housing improves a lot, and ought have pore foam
In the case that metal is supported, the rigidity of milling tools improves 20 ~ 30% or so than pore-free foam metal.Bistrique is total after preparation
Body weight mitigates compared to clean steel matrix about 55% or so, and compared with corundum wheel, weight only improves 5% or so, has reached design
It is required that, finding that polishing noise is low, lightweight, soft handle through reality polishing test, vibration is small, and spark is small, and abrasive surface is not easy to stick
Attached, using effect is ideal.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned implementation method
Detail, in range of the technology design of the invention, various equivalents can be carried out to technical scheme, this
A little equivalents belong to protection scope of the present invention.
Claims (10)
1. a kind of super hard abrasive milling tools, including the grinding head being coaxially disposed is tied with handle, grinding head is connect for axisymmetric revolution
Structure, it is characterised in that：Grinding head includes that hollow housing, cloth are sprinkled upon the super hard abrasive in housing outer surface and filling in the housing
Pore foam metal in cavity；Connect handle and connect handle for T-shaped, the T-shaped handle that connects connects handle including disk and with disk is fixedly and coaxially connected
Axle；Disk periphery is connected with inner walls face.
2. super hard abrasive milling tools according to claim 1, it is characterised in that：The pore foam Thermal Conductivity by Using
3w/ (mk) is not less than, density is not higher than 1g/cm3。
3. super hard abrasive milling tools according to claim 2, it is characterised in that：The pore foam metal is for density
0.1~0.6 g/cm3Copper.
4. super hard abrasive milling tools according to claim 1, it is characterised in that：The T-shaped tension for connecing handle entirety is strong
Degree is more than 200MPa, T-shaped to connect metal or nonmetallic materials of the disk for density less than 4g/cm3 in handle.
5. super hard abrasive milling tools according to claim 4, it is characterised in that：The T-shaped material for connecing disk in handle
It is the one kind in 6061 duralumin, hard alumin ium alloy materials high, phenolic resin and carbon fibre composite.
6. super hard abrasive milling tools according to claim 1, it is characterised in that：The housing shell thickness scope be 1.0 ~
6.5mm, grinding head external diametrical extent is 0.5 ~ 80mm, and milling tools overall length scope is 6mm ~ 160mm.
7. super hard abrasive milling tools according to claim 1, it is characterised in that：The disk periphery and inner walls face
Between the two, connect arbor connected mode with disk between the two and be and be threadedly coupled or interference fit or soldering connection.
8. a kind of preparation method of the super hard abrasive milling tools according to claim any one of 1-7, it is characterised in that：Including
Following steps：
It is prepared by step 1, housing：Solid grinding head is first processed, then using separate structure, will be drawn inside solid grinding head
Sky, forms hollow housing；
Step 2, it is T-shaped to connect handle preparation；
Step 3, cloth spills super hard abrasive：By super-hard abrasive, cloth spills housing outer surface in step 1 by the way of soldering heating；
Step 4, fills pore foam metal：By the middle cavity of the metal filled housing that super hard abrasive is spilt in cloth of pore foam
It is interior；
Step 5, housing is connected with the T-shaped handle that connects：After the completion of pore foam is metal filled, by the T-shaped disk connect in handle and housing
Internal face is fixedly connected, and makes pore foam Metal Packaging in the middle cavity of housing；Super hard abrasive milling tools is prepared and completed.
9. super hard abrasive milling tools preparation method according to claim 8, it is characterised in that：In the step 1, use
The mode of cold forging carries out the processing of solid grinding head；During cold forging, forge die is first gone out according to the structure design of grinding head.
10. super hard abrasive milling tools preparation method according to claim 8, it is characterised in that：It is T-shaped in the step 2
When connecing handle and preparing, disk and connect arbor and individually process, and be connected through a screw thread.
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| CN111015372A (en) * | 2019-11-28 | 2020-04-17 | 盐城工学院 | Grinding method of milling cutter for milling titanium-based composite material |
| CN111975596A (en) * | 2020-08-23 | 2020-11-24 | 吉林大学 | Copying grinding device suitable for underwater environment |
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