CN107866756B - A kind of preparation method of multi-layer super-hard abrasive electroplating grinding wheel with ordered micro-groove structure - Google Patents
A kind of preparation method of multi-layer super-hard abrasive electroplating grinding wheel with ordered micro-groove structure Download PDFInfo
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- CN107866756B CN107866756B CN201711265544.0A CN201711265544A CN107866756B CN 107866756 B CN107866756 B CN 107866756B CN 201711265544 A CN201711265544 A CN 201711265544A CN 107866756 B CN107866756 B CN 107866756B
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- 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
- B24D18/009—Tools not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a preparation method of an ordered micro-groove structure multilayer superhard abrasive electroplating grinding wheel. The preparation method comprises the following steps: firstly, coating polyvinyl alcohol glue on the outer circumference of a grinding wheel hub and drying the polyvinyl alcohol glue to form a polyvinyl alcohol glue layer, processing an ordered microgroove array on the glue layer by adopting a micro water jet laser processing technology, then injecting molten polyethylene into the microgrooves and cooling the polyethylene to form a polyethylene insulation sheet, completely dissolving the polyvinyl alcohol glue layer in boiling water and leaving the polyethylene insulation sheet array, then plating a plurality of layers of superhard grinding materials on the grinding wheel hub, and finally putting the grinding wheel into a heating furnace to melt and remove the polyethylene insulation sheet to form the ordered microgroove structure multilayer superhard grinding material electroplated grinding wheel. The microgroove processing technology of the invention ensures that the working surface of the grinding wheel hub does not have a heat affected zone, and after a plurality of layers of grinding materials are electroplated, a large number of microgrooves with large depth-to-width ratios can be kept among the grinding material layers which are orderly arranged, the microgrooves have good structural and dimensional consistency, the chip removal and cooling performance of the grinding wheel are greatly improved, and the service life of the grinding wheel is prolonged.
Description
Technical field
The present invention relates to a kind of preparation method of grinding wheel, sand is electroplated in especially a kind of orderly micro groove structure multi-player super-hard abrasive material
The preparation method of wheel.
Background technique
It is ground the processing technology one of most wide as current mechanical manufacturing field use scope, in Precision and Ultra-precision Machining
Aspect has important application.Traditional single layer abrasive material electroplating abrasion wheel can not be modified, and need to increase thickness of coating to increase coating
Metal will cause abrasive material height of protrusion and chip space reduce, be easy to block grinding wheel to the holding power of abrasive material, heat dissipation effect
Fruit is poor, exacerbates the generation and aggregation of grinding heat, while grinding wheel and workpiece are in close contact, cause grinding fluid be difficult to effectively into
Enter grinding area, so that grinding area cooling effect is bad, be easy to cause workpiece thermal damage.
In order to improve chip removal and the cooling effect of grinding wheel, patent " the micro-structural big mill of Publication No. CN103465187A
The manufacturing method of particle diamond grinding wheel " is using the pulse laser perpendicular to mono-layer diamond electroplating abrasion wheel working surface, in grinding wheel
The microflute that depth and width are tens microns is processed on working surface.Although fluting is conducive to grinding fluid and enters grinding area, mention
High grinding wheel chip removal and cooling performance, but since grinding wheel is non-homogeneous multiple elements design body, using laser on stone surface
When processing microflute, ablated object includes abrasive grain and bonding agent, and the thermophysical property of both materials usually differs greatly,
Cause micro groove structure and size characteristic consistency poor, laser processing technology parameter is difficult to control, while while laser machining is caused
Abrasive material superficial lesions problem also can not be ignored.
A kind of patent " manufacturing method of ordered structure electroplating abrasion wheel " of Publication No. CN104385160A first uses laser
Beam processes groove array on grinding wheel wheel hub outer circumference surface, is then filled up groove array using epoxy resin, then in grinding wheel
Abrasive material is electroplated on wheel hub outer circumference surface, to form the electroplating abrasion wheel of abrasive material and the arrangement of epoxy resin regular intervals.Pass through this
The grinding wheel of method preparation significantly increases the chip space of grinding wheel, improves the chip removal ability of grinding wheel, and keep grinding fluid effective
Ground injects grinding area, improves the cooling effect of grinding area.But since the abrasive material separated in the plating process by microflute has
Abducent trend, if the number of plies of plating abrasive material is more, adjacent grits layer, which can mutually draw close even overlap joint, becomes one
It is whole, it is too small even without microflute so as to cause the width of mini longitudinal channels on grinding wheel cylindrical week working face, it will to cause grinding wheel to hold bits empty
Between reduce, cooling effect is greatly lowered, and workpiece thermal damage is be easy to cause in grinding process.Therefore the grinding wheel prepared by this method
The abrasive material number of plies cannot be excessive, the depth-to-width ratio of formed microflute cannot be too big, grinding wheel abrasive wear or subsequent abrasive grain is mended after falling off
The amount of making up the number is on the low side, and local location is caused abrasive grain vacancy phenomenon occur, and wheel vibration aggravates when grinding, reduces grinding accuracy, and
The service life of grinding wheel is limited.
A kind of patent " optimized controllable arranged electroplating tool of three-dimensional abrasive laminated production side of Publication No. CN101073882A
Method " proposes a kind of method in grinding wheel hub surface plating multiple layers abrasive material, and the grinding wheel of this method preparation can significantly increase
Chip space enhances the ability that abrasive dust discharge, grinding fluid enter grinding area, are ground heat transfer in grinding process.But this method
Using two-layer compound exposure mask as plating mask, abrasive material group's shape that formation is electroplated is difficult to control, the mill for causing composite plating to be formed
Material group's pattern is up-narrow and down-wide halfpace shape, increases the interval between abrasive material group, and grinding wheel and work piece interface product fluctuation increase, mill
During cutting it is possible that biggish vibration and the problem of cause workpiece surface quality to decline.
Summary of the invention
To solve the problems, such as above-mentioned grinding wheel and of the existing technology, the present invention proposes a kind of orderly micro groove structure multi-player super-hard
The preparation method of abrasive material electroplating abrasion wheel.Grinding wheel of the invention, it is characterized in that arrange on grinding wheel wheel hub outer circumference surface it is a large amount of and
It include the plating ultrahard abrasive layer of multi-player super-hard abrasive material, it is equal with grinding wheel thickness, wide to be disposed with length between adjacent grits layer
Only tens microns of degree, depth are hundreds of microns, depth-to-width ratio reaches tens and the microflute with certain structure type, and microflute is in sand
Equally ordered arrangement, spacing are hundreds of microns on wheel excircle working face.Orderly micro groove structure multi-player super-hard of the invention
Abrasive material electroplating abrasion wheel can both increase the chip space of grinding wheel, improve appearance bits, the chip removal ability of grinding wheel, it is effective to be conducive to grinding fluid
Ground enters grinding area, significantly improves the cooling effect of grinding area；Again because microflute size is subtle, depth-to-width ratio is big, structural integrity
Height can mitigate the periodic vibration occurred in grinding process, substantially increase the processing quality of workpiece；Multilayer abrasive material electricity simultaneously
Plating grinding wheel can modify, reduce the requirement to grinding wheel wheel hub machining accuracy and assembly precision, greatly reduce grinding wheel manufacture at
This；And abrasive material size used is tiny, and unit Effective grains' number increases when grinding, can be while guaranteeing that material removing rate is high
Improve workpiece processing quality.
To achieve the above object, the technical solution adopted by the present invention is that: grinding wheel wheel hub is produced using machining process.
The polyvinyl alcohol glue that a layer thickness is 0.8~1.2mm is coated on the outer circumference surface of grinding wheel wheel hub, after glue natural air drying
It is placed in together with grinding wheel wheel hub in drying box and sufficiently dries, to form polyvinyl alcohol glue on the outer circumference surface of grinding wheel wheel hub
Layer.Use Laser MicroJet processing technology processed on polyvinyl alcohol glue-line spacing for hundreds of microns, width be some tens of pm,
Length is equal with grinding wheel thickness, depth is to penetrate polyvinyl alcohol glue-line and form the groove that depth is nearly hundred microns in grinding wheel wheel hub
Array.Groove array is filled using molten polyethylene；After melting polyethylene cold and but forming, grinding wheel wheel hub is placed in boiling water
In, since polyvinyl alcohol glue-line can be completely dissolved in boiling water, and polyethylene does not dissolve in boiling water, then in the outer circle of grinding wheel wheel hub
Polyethylene insulation chip arrays can be left on circumferential surface.Pre-treatment is carried out to super hard abrasive and grinding wheel wheel hub, pre-treatment includes to super
Hard grind material carries out pickling and alkali cleaning, to grinding wheel wheel hub acid pickling and rust removing, coats insulated paint in grinding wheel wheel hub non-working surface.Before passing through
In the grinding wheel wheel hub merging electroplating bath of processing, superhard abrasive is electroplated on grinding wheel wheel hub outer circumference surface using composite electrodeposition technique
Material, i.e., first on the outer circumference surface of grinding wheel wheel hub preplating with a thickness of 20 μm of nickel coating；Upper first layer super hard abrasive, plating thicken
So that the height of first layer super hard abrasive 65%~80% is embedded in nickel coating；Then second layer super hard abrasive is gone up again, and is added
The height of thickness to second layer super hard abrasive 65%~80% is embedded in nickel coating；Upper third layer super hard abrasive again, repeatedly,
Until forming plating ultrahard abrasive layer a large amount of and with multi-player super-hard abrasive material on grinding wheel wheel hub outer circumference surface, and outermost layer is super
The height of hard grind material 65%~70% is embedded in nickel coating.Due to the presence of polyethylene insulation piece, adjacent plating superhard abrasive
The bed of material is completely separated, forms plating ultrahard abrasive layer and polyethylene insulation piece is in the pattern being intervally arranged.Plating is finished
Grinding wheel is placed in heating furnace, and heating is molten to remove polyethylene insulation chip arrays, forms a large amount of abrasive materials orderly microflute alternate with microflute
Structure multi-player super-hard abrasive material electroplating abrasion wheel.
The grinding wheel hub material is No. 45 steel, and diameter is 20~200mm of Φ, with a thickness of 6~20mm.
The microflute of the abrasive material interlayer be width be only 30~50 μm, depth is 500~750 μm, depth-to-width ratio is 10~25,
Spacing is 400~800 μm.
The super hard abrasive number of plies of the plating ultrahard abrasive layer is 4~7 layers.
The abrasive material with a thickness of 0.3~0.6mm.
The groove can be by adjusting the nozzle of Laser MicroJet process equipment and the relative motion rail of grinding wheel wheel hub
Mark changes the structure type of groove, and the structure type of groove includes linear type, bias type, screw type.
Using Laser MicroJet processing technology when processing groove on polyvinyl alcohol glue-line, guiding the diameter of laser beam is Φ
25~45 μm of water jet perpendicular to polyvinyl alcohol glue-line outer circumference surface, and along the axial feed of grinding wheel wheel hub, while sand
Wheel hub is taken turns to rotate around its own axis；After often processing a groove, the nozzle of Laser MicroJet process equipment returns to initial bit
It sets, then grinding wheel hub rotation is indexed, carry on the processing of next groove；Repeatedly, until entire polyvinyl alcohol glue
The outer circumference surface of layer is machined with groove array.
The super hard abrasive is CBN or diamond.
Compared with prior art, the invention has the advantages that.
1. with a large amount of length, width equal with grinding wheel thickness is only tens microns, depth on grinding wheel wheel hub outer circumference surface
Degree is that several hundred microns, depth-to-width ratio reach tens, are divided into several hundred microns of microflute, substantially increases the chip space of grinding wheel,
Appearance bits, the chip removal ability of grinding wheel are improved, and grinding fluid is enabled to effectively enter grinding area, enhances the cold of grinding area significantly
But effect prevents workpiece from grinding burn occurs.
2. after pulse laser beam passes through lens focus, being imported into spray when using Laser MicroJet processing technology processing groove
The diameter that mouth projects is only in 25~45 μm of Φ of water jet, and laser beam is inside water jet along water jet in a manner of total reflection
It propagates.When water jet and workpiece contact, laser is guided by water jet to workpiece surface, laser ablation workpiece material, ablated
Workpiece material taken away by water flow, while water flow cooling down workpiece, workpiece surface are not in heat affected area, will not be remained molten
Slag.Therefore the recess width of processing can be only tens microns, depth-to-width ratio can achieve tens, and groove has structure and ruler
The high advantage of very little consistency also mitigates significantly because of periodic vibration caused by intermittent grinding in grinding process, to improve workpiece
Processing quality.
3. polyethylene insulation piece ordered arrangement on grinding wheel wheel hub outer circumference surface, then carries out plating super hard abrasive again,
When plating multiple layers super hard abrasive, adjacent grits layer is completely separated to mutually draw close or even be overlapped to form by polyethylene insulation piece
For an entirety, so that the number of plies that abrasive material can be electroplated in grinding wheel of the invention is more.Multi-player super-hard abrasive material electroplating abrasion wheel can
It is low to wheel hub machining accuracy and installation accuracy dependence with finishing, the cost of grinding wheel manufacture is substantially reduced, and multilayer is superhard
Abrasive material is spatially in dislocation arrangement, when the super hard abrasive on surface layer wears or falls off in grinding process, next layer superhard
Abrasive material can participate in being ground in time, improve the utilization rate of abrasive material and the grinding efficiency of grinding wheel, extend the service life of grinding wheel, guarantee
The processing quality of workpiece.
4. polyvinyl alcohol glue-line can be completely dissolved in 95 DEG C of hot water in the present invention, plate surface relative clean, plating is pre-
Processing is very simple, and binding force of cladding material is fine.
5. super hard abrasive size used in the present invention is tiny, the unit Effective grains' number of grinding wheel increases when grinding, can protect
The processing quality of workpiece is improved while card material removing rate is high.
Detailed description of the invention
Fig. 1 is the schematic diagram that Laser MicroJet process equipment processes groove on polyvinyl alcohol glue-line and grinding wheel wheel hub.
Fig. 2 is the schematic diagram and its partial view processed after groove array on polyvinyl alcohol glue-line and grinding wheel wheel hub.
Fig. 3 is that schematic diagram and its partial view after molten polyethylene are injected into groove array.
Fig. 4 leaves polyethylene insulation chip arrays on grinding wheel wheel hub outer circumference surface after being completely dissolved polyvinyl alcohol glue-line
Schematic diagram and its partial view.
Fig. 5 is showing after multi-player super-hard abrasive material is electroplated on grinding wheel wheel hub outer circumference surface between adjacent polyethylene insulation piece
Intention and its partial view.
Fig. 6 is molten grinding wheel schematic diagram and its partial view except after polyethylene insulation piece.
Mark of the figure 1 above into Fig. 6 are as follows: 1, grinding wheel wheel hub, 2, polyethylene insulation piece, 3, super hard abrasive, 4, nickel coating,
5, polyvinyl alcohol glue-line, 6, nozzle, 7, groove, 8, abrasive material, 9, water jet, 10, laser beam, 11, molten polyethylene, 12, micro-
Slot.
Specific embodiment
Invention specific embodiment is described further with reference to the accompanying drawing.
Referring to Fig. 1 to Fig. 6, a kind of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel, structure feature is: in sand
The plating ultrahard abrasive layer 8 of multi-player super-hard abrasive material 3, adjacent grits layer 8 are arranged largely and included on wheel 1 outer circumference surface of wheel hub
Between be disposed with the microflute 12 of bias type；The width of microflute 12 is only 50 μm, depth is 500 μm, depth-to-width ratio reaches 10, axial long
It spends equal with grinding wheel thickness；Equally ordered arrangement, spacing are 700 μm to 12 array of microflute on grinding wheel cylindrical week working face.
Orderly micro groove structure substantially increases the chip space of grinding wheel, improves appearance bits, the chip removal ability of grinding wheel, and enables grinding fluid
Grinding area is enough effectively entered, enhances the cooling effect of grinding area significantly, prevents workpiece from grinding burn occurs.
A kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel is as follows.
Step 1: it is Φ 200mm, with a thickness of 10mm that the method for using machining, which produces material as No. 45 steel, diameter,
Grinding wheel wheel hub 1, on the outer circumference surface of grinding wheel wheel hub 1 apply be covered with a layer thickness be 1.0mm polyvinyl alcohol glue, to glue
It is placed in drying 8 hours in drying box after natural air drying together with grinding wheel wheel hub 1, forms poly- second on 1 outer circumference surface of grinding wheel wheel hub
Enol glue-line 5.
Step 2: processing groove 7 on polyvinyl alcohol glue-line 5 using Laser MicroJet processing technology.Laser beam 10 is in water
It is propagated in a manner of being totally reflected along water jet 99 the inside of jet stream.When water jet 9 and workpiece contact, laser is drawn by water jet 9
It is directed at workpiece surface, laser ablation workpiece material, ablated workpiece material is taken away by water flow, while water flow cooling down workpiece, work
Part surface is not in heat affected area, will not residual slag.Therefore the groove 7 using the processing of Laser MicroJet processing technology is wide
Degree can be only tens microns, depth-to-width ratio can achieve tens, and groove 7 has the advantages that structure snd size consistency is high.
The diameter that water jet 9 is adjusted by the diameter of the nozzle 6 of control Laser MicroJet process equipment, so that sand of the invention
Wheel can process width on 1 outer circumference surface of grinding wheel wheel hub and polyvinyl alcohol glue-line 5 and be only 50 μm and have big depth-to-width ratio
Groove 7.Laser beam 10 diameter be 40 μm of Φ water jet 9 guidance under perpendicular to polyvinyl alcohol glue-line 5 outer circumference surface, and
Along the axial feed of grinding wheel wheel hub 1, while grinding wheel wheel hub 1 is rotated around its own axis；It is micro- after often processing a groove 7
The nozzle 6 of water knife laser process equipment returns to initial position, then grinding wheel wheel hub 1 is rotated and is indexed, and carries on next groove 7
Processing；Repeatedly, until processing spacing on entire polyvinyl alcohol glue-line 5 as 700 μm, axial length and grinding wheel thickness
Equal, width is 50 μm, depth is to penetrate polyvinyl alcohol glue-line 5 and form 7 gusts of groove that depth is 100 μm in grinding wheel wheel hub 1
Column.
Step 3: being filled 7 array of groove using molten polyethylene 11, packed height is to expose 1 excircle of grinding wheel wheel hub
Grinding wheel wheel hub 1 is placed in boiling water, after the cooling and shaping of molten polyethylene 11 due to 5 energy of polyvinyl alcohol glue-line by surface 0.7mm
It is enough to be completely dissolved in 95 DEG C of hot water, therefore 1 excircle of grinding wheel wheel hub surface relative clean to be electroplated, plating pretreatment are very simple
It is single, and polyethylene does not dissolve in boiling water, then 2 array of polyethylene insulation piece can be left on 1 outer circumference surface of grinding wheel wheel hub.
Step 4: carrying out pre-treatment to super hard abrasive 3 and grinding wheel wheel hub 1, pre-treatment includes to carry out pickling to super hard abrasive 3
And alkali cleaning coats insulated paint in 1 non-working surface of grinding wheel wheel hub to 1 acid pickling and rust removing of grinding wheel wheel hub.Super hard abrasive 3 used is 200 mesh
Diamond, size is tiny, and the unit Effective grains' number of grinding wheel increases when grinding, can be while guaranteeing that material removing rate is high
Improve the processing quality of workpiece.
Step 5: the grinding wheel wheel hub 1 Jing Guo pre-treatment is placed in electroplating bath, it is electroplated using the Process configuration of existing maturation
Liquid, plating solution formula are as follows: 190~220g/L of nickel sulfate, 15~25g/L of cobaltous sulfate, boric acid 35g/L, 8~10g/L of sodium chloride,
0.08~0.1g/L of lauryl sodium sulfate.Electroplating parameter: plating solution pH value is 4~5, and temperature is 45~60 DEG C, and cathode current is close
Degree is 1~3A/dm2.Super hard abrasive 3 is electroplated on 1 outer circumference surface of grinding wheel wheel hub using composite electrodeposition technique, i.e., first in grinding wheel
It is plated in advance on 1 outer circumference surface of wheel hub with a thickness of 20 μm of nickel coatings 4, by the super hard abrasive 3 Jing Guo pre-treatment using stucco method and in advance
The nickel coating 4 of plating is bonded, and the plating by the short time will tentatively be fixed to 1 outer circle of grinding wheel wheel hub close to the super hard abrasive 3 of bottom
In nickel coating 4 on circumferential surface, the super hard abrasive 3 of 1 surface of grinding wheel wheel hub attachment is slowly washed with distilled water.It is laggard to complete sand removal
Row plating thickeies, thicken so that the height of first layer super hard abrasive 65%~80% be embedded in nickel coating 4 after the upper second layer again
Super hard abrasive 3 is thickeied again to the height of second layer super hard abrasive 65%~80% and is embedded in nickel coating 4, then upper third layer
Super hard abrasive 3, repeatedly, until plating 3 number of plies of super hard abrasive reaches 5 layers, abrasive material 8 with a thickness of 0.4mm, and outermost layer
The height of super hard abrasive 65%~70% is embedded in nickel coating 4.Finally on 1 outer circumference surface of grinding wheel wheel hub plating formed it is a large amount of and
It include the plating ultrahard abrasive layer 8 of multi-player super-hard abrasive material 3, the super hard abrasive 3 of multilayer spatially in dislocation arrangement, works as surface layer
Super hard abrasive 3 when wearing or fall off in grinding process, next layer of super hard abrasive 3 can participate in being ground in time, improve mill
The utilization rate of material and the grinding efficiency of grinding wheel, extend the service life of grinding wheel, guarantee the processing quality of workpiece.Since polyethylene is exhausted
Embolium 2 is completely separated by adjacent plating ultrahard abrasive layer 8, so forming plating abrasive material 8 on 1 outer circumference surface of grinding wheel wheel hub
It is in the pattern being intervally arranged with polyethylene insulation piece 2.
Step 6: heating is molten to remove 2 array of polyethylene insulation piece in the grinding wheel merging heating furnace that plating is finished, formed big
Measure the orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel alternate with microflute 12 of abrasive material 8.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalent forms of the invention
Modification fall within the application range as defined in the appended claims.
Claims (8)
1. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel, which is characterized in that preparation step is as follows:
Step 1: producing grinding wheel wheel hub (1) using machining process；One is coated on the outer circumference surface of grinding wheel wheel hub (1)
Layer is placed in drying box with grinding wheel wheel hub (1) after glue natural air drying with a thickness of the polyvinyl alcohol glue of 0.8~1.2mm together
Interior abundant drying, to form polyvinyl alcohol glue-line (5) on grinding wheel wheel hub (1) outer circumference surface；
Step 2: Laser MicroJet processing technology is used to process spacing on polyvinyl alcohol glue-line (5) as hundreds of microns, width
For some tens of pm, length is equal with grinding wheel thickness, depth is to penetrate polyvinyl alcohol glue-line (5) and formed in grinding wheel wheel hub (1) deep
Groove (7) array that degree is nearly hundred microns；
Step 3: groove (7) array is filled using molten polyethylene (11)；It, will after molten polyethylene (11) are cooled and shaped
Grinding wheel wheel hub (1) is placed in boiling water, and since polyvinyl alcohol glue-line (5) can be completely dissolved in boiling water, and polyethylene does not dissolve in
Boiling water can then leave polyethylene insulation piece (2) array on grinding wheel wheel hub (1) outer circumference surface；
Step 4: carrying out pre-treatment to super hard abrasive (3) and grinding wheel wheel hub (1), pre-treatment includes to carry out acid to super hard abrasive (3)
It washes and alkali cleaning coats insulated paint in grinding wheel wheel hub (1) non-working surface to grinding wheel wheel hub (1) acid pickling and rust removing；
Step 5: by grinding wheel wheel hub (1) the merging electroplating bath Jing Guo pre-treatment, using composite electrodeposition technique in grinding wheel wheel hub
(1) super hard abrasive (3) are electroplated on outer circumference surface, i.e., first on grinding wheel wheel hub (1) outer circumference surface preplating with a thickness of 20 μm of nickel plating
Layer (4)；Upper first layer super hard abrasive (3), plating thicken so that the height of first layer super hard abrasive (3) 65%~80% is embedded in
In nickel coating (4)；Then again upper second layer super hard abrasive (3), and thicken to the height of second layer super hard abrasive (3) 65%~80%
Degree is embedded in nickel coating (4)；Upper third layer super hard abrasive (3) again, repeatedly, until in grinding wheel wheel hub (1) outer circumference surface
The upper plating ultrahard abrasive layers (8) formed largely and there are multi-player super-hard abrasive material (3), and outermost layer super hard abrasive (3) 65%~
70% height is embedded in nickel coating (4)；
Step 6: heating is molten to remove polyethylene insulation piece (2) array in the grinding wheel merging heating furnace that plating is finished, formed a large amount of
Abrasive material (8) and microflute (12) alternate orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel.
2. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, described
Grinding wheel wheel hub (1) material be No. 45 steel, diameter be 20~200mm of Φ, with a thickness of 6~20mm.
3. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, described
Microflute (12) width be only 30~50 μm, depth is 500~750 μm, depth-to-width ratio is 10~25, spacing is 400~800 μ
m。
4. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, described
Multi-player super-hard abrasive material (3) refer to ultrahard abrasive layer (8) plating super hard abrasive (3) the number of plies be 4~7 layers.
5. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, described
Abrasive material (8) with a thickness of 0.3~0.6mm.
6. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, described
Groove (7) can by adjusting Laser MicroJet process equipment nozzle (6) and grinding wheel wheel hub (1) relative movement orbit come
Change the structure type of groove (7), the structure type of groove (7) includes linear type, bias type, screw type.
7. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, step
Described in two using Laser MicroJet processing technology when processing groove (7) on polyvinyl alcohol glue-line (5), laser beam is guided
(10) water jet (9) perpendicular to polyvinyl alcohol glue-line (5) outer circumference surface, and along the axial feed of grinding wheel wheel hub (1), together
When grinding wheel wheel hub (1) around its own axis rotate；After often processing a groove (7), the nozzle of Laser MicroJet process equipment
(6) initial position is returned, then grinding wheel wheel hub (1) is rotated and is indexed, carries on the processing of next groove (7)；Repeatedly,
Until the outer circumference surface of entire polyvinyl alcohol glue-line (5) processes fluted (7) array.
8. a kind of preparation method of orderly micro groove structure multi-player super-hard abrasive material electroplating abrasion wheel according to claim 1, described
Super hard abrasive (3) be diamond or CBN.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910015117.XA CN109773671B (en) | 2017-12-05 | 2017-12-05 | A multi-layer superabrasive electroplating grinding wheel with ordered micro-grooved structure |
| CN201711265544.0A CN107866756B (en) | 2017-12-05 | 2017-12-05 | A kind of preparation method of multi-layer super-hard abrasive electroplating grinding wheel with ordered micro-groove structure |
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| Publication number | Publication date |
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| CN107866756A (en) | 2018-04-03 |
| CN109773671A (en) | 2019-05-21 |
| CN109773671B (en) | 2020-11-20 |
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