CN109877719A - A kind of Metal Substrate CBN grinding wheel and its manufacturing method - Google Patents
A kind of Metal Substrate CBN grinding wheel and its manufacturing method Download PDFInfo
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Abstract
Of the invention a kind of Metal Substrate CBN grinding wheel and its manufacturing method, grinding wheel include steel core and abrasive material circle, and abrasive material circle is prepared by following components by mass percentage: CBN abrasive material 30~65%, metallic bond 30~60%, additional adhesive 5~15%；Metallic bond includes component and mass percent are as follows: Cu powder 50~60%, Sn powder 30~45%, Ti powder 5~10%.Preparation method are as follows: according to the ratio, after each raw material of abrasive material circle is mixed, mix the mixture after being dried to drying: mixture=90~95% before drying with additional adhesive, sieving, after compression moulding, is sintered under the relevant temperature time, cooling is come out of the stove, and is bonded with steel core, and Metal Substrate CBN grinding wheel is made.The grinding wheel has fabulous thermal conductivity, and the space for accommodating the abrasive grain to fall off effectively increases, and wheel grinding is high-efficient, grinding temperature is low, power loss is low, good processing accuracy, long service life, method sintering time is short, it is sharp that wheel grinding is made, grinding accuracy is high, and has self-sharpening.
Description
Technical field
The present invention relates to super hard abrasive fields, and in particular to a kind of Metal Substrate CBN grinding wheel and its manufacturing method.
Background technique
With modern mechanical processing towards high-precision, at high speed, hard processing, dry processing (no coolant liquid) and reduce cost etc.
Direction is developed, and proposes quite high requirement to grinding tool performance.Traditional silicon carbide and corundum conventional abrasive material mold cannot be complete
The current high speed of full up foot, efficient, high-precision grinding requirement, therefore various excellent wear-resisting properties are developed, it can carry out for a long time steady
Surely the superhard removing material processed is inevitable development trend.Currently used superhard removing material includes cubic boron nitride
(CBN) and two kinds of abrasive materials of diamond.Though the hardness of cubic boron nitride abrasive materials is lower than diamond, but still is much higher than corundum and silicon carbide
Material, and the thermal stability of the abrasive material is better than diamond, there is good Wear-resistant corrosion-resistant.Cubic boron nitride abrasive wheel can not only
The high-strength tenacities such as titanium alloy, nickel base superalloy applied to efficient precise grinding aircraft engine parts (such as disk, axis)
Unmanageable material, and will not react with iron and ferroalloy and can be widely applied for ferrous alloy (ferrous metal) material
Expect such as hardened steel, high-speed tool steel, bearing steel, stainless steel, mould steel, heat resisting steel, advanced high-strength steel and rich chromium cast iron material.
The performances such as grinding efficiency, machining accuracy and the wearability of CBN super-hard abrasive tool (grinding wheel) are the key that in High-speed & Precision Grinding processing
Problem.
Bonding agent in super-hard abrasive tool for fixed grain is the key factor for influencing super-hard abrasive tool performance.Traditional is super
Hard grind tool (grinding wheel) mostly uses the techniques manufactures such as resin, ceramics, metallic bond sintering and plating, the problem is that monocrystalline
Grain is only embedded in bonding agent and electroplated layer by machinery embedding, weaker with bonding agent and plating interlayer active force.It is specific next
It says, although resinoid bond is easier processing and modifies, but poor heat resistance, and bond strength is low, and abrasive material falls off seriously, serious shadow
Ring efficiency；Vitrified bond finishing is relatively easy, and using temperature height, however brittleness is big, and toughness and fatigability are poor, Yi Fa
Raw embrittlement, it is difficult to be used for High-speed machining.Although it is strong that metallic bond is sintered heat resistance, between usual bonding agent and abrasive grain not
Enhanced primary treatment can be generated, thus abrasive grain is only embedded in bonding agent by machinery embedding, holding power is limited；In metal plating
Abrasive grain is also only mechanically embedded.Therefore it is easy to fall off because of abrasive material in particle and is removed in flakes with coating due to lead to the entirety of grinding wheel
Failure, such situation are especially apparent in more unmanageable material high efficient grinding；In addition, plating thickness, abrasive material proud exposure
Low, chip space is small, and when grinding is easy to fail because the adherency of chip blocks.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of Metal Substrate CBN grinding wheel and its manufacturing method, which is one
Kind can bear the CBN grinding wheel compared with big load during high-speed grinding, while have outstanding impact resistance and good shape
Retentivity, specific technical solution are as follows:
A kind of Metal Substrate CBN grinding wheel of the invention, including steel core and abrasive material circle, in which:
The abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 30~65%, metal bonding
Agent: 30~60%, additional adhesive: the sum of 5~15%, CBN abrasive material, metallic bond and additional adhesive mass percent are
100%；
The metallic bond includes component and mass percent are as follows: Cu powder 50~60%, Sn powder: 30~45%, Ti
Powder: 5~10%；Cu powder, the sum of Sn powder and Ti powder mass percent are 100%.
The steel core and abrasive material circle is combined by resin glue caking agent.
The abrasive material circle porosity is 25~45%.
The particle size range of the CBN abrasive material, Cu powder, Sn powder and Ti powder is 40~75 μm.
The additional adhesive is acrylic emulsion.
The Metal Substrate CBN grinding wheel specific size is internal diameter 80mm, outer diameter 100mm, thickness 10mm.
The macrohardness of the Metal Substrate CBN grinding wheel is 90~101HRB, and impact flexibility is 0.20~0.30J/cm2。
Dry friction load is 50N, and when the time is 5min, mass loss is 4~16mg.
A kind of manufacturing method of Metal Substrate CBN grinding wheel of the invention, includes the following steps:
Step 1, mixing:
(1) composition proportion for pressing a kind of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, and are made
Obtain mixture A；
(2) composition proportion for pressing a kind of Metal Substrate CBN grinding wheel, additional adhesive is uniformly mixed with mixture A, is made mixed
Close material B；
Step 2, it dries:
Mixture B is heated to 40~60 DEG C, drying is arrived in mass ratio, the mixture B after drying: the mixture before drying
B=90~95%；
Step 3, sieving and molding:
(1) the mixture B after drying is sieved, crossing grit number is 20~100 mesh；
(2) the mixture B after sieving is pressed, pressure is 50~150MPa, 10~60min of pressure maintaining, is made
Abrasive material circle green compact；
Step 4, it is sintered:
(1) by abrasive material circle green compact with the heating rate of 5~15 DEG C/min, from room temperature to sintering temperature 850~1050
DEG C, 10~60min of sintering time, the sintering operation carries out under inert gas atmosphere；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 5, it bonds:
Abrasive material circle green body and steel core are bonded, Burr removal is removed, Metal Substrate CBN grinding wheel is made in finishing molding.
In the step 1 (1), the incorporation time that mixture A is formed is 0.5~2h.
In the step 1 (2), stir by mixing to form mixture B, mixing time 0.5h.
In the step 2, drying soaking time is 0.5~1.5h.
In the step 3 (1), it is sieved 3~6 times.
In the step 3 (2), compression moulding carries out at room temperature, is suppressed in the uniform investment mold, described
Compression moulding using hydraulic press carry out.
In the step 4 (1), inert gas is argon gas, it is therefore intended that carries out sintering operation under oxygen-free environment.
In grinding wheel preparation process of the invention, anti-life is reacted for active element Ti and CBN in solder, forms the chemistry of strength
Metallurgy connection, and then enhance the holding power of metallic matrix.Specific reaction equation is as follows:
3Ti+2BN=TiB2+ 2TiN and 2Ti+BN=TiB+TiN.
A kind of Metal Substrate CBN grinding wheel of the invention and manufacturing method have the beneficial effect that compared with prior art
(1) there is Metal Substrate CBN grinding wheel of the invention fabulous thermal conductivity can quickly reduce grinding workpiece surface
Temperature improves grinding speed to reduce power loss；Additional adhesive in formula is conducive to the formation of product hole, can
With effective space for increasing the abrasive grain that receiving falls off, the utilization of abrasive material is more abundant, while metallic bond has extremely strong holding
Power；Grinding wheel has the characteristics that grinding efficiency is high, grinding temperature is low, power loss is low, good processing accuracy, long service life.
(2) preparation method provided by the invention, since sintering time is short, the characteristic of abrasive material is not damaged, sintering temperature
Degree, metallic bond, porosity and the control of time, making grinding wheel during the work time has good thermal conductivity and biggish appearance
Receive the space of metal fillings and abrasive material, be also not easy to plug during high-speed grinding, be ground sharp, grinding accuracy is high, and have from
Sharp property.
Specific embodiment
Below with reference to specific implementation case, the invention will be further described, but the invention is not limited to these to implement
Example.
Embodiment 1
A kind of Metal Substrate CBN grinding wheel comprising steel core and abrasive material circle, steel core and abrasive material circle pass through resin glue caking agent knot
It closes, wherein abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 30%, metallic bond: 60%, it is auxiliary
Help binder: the sum of 10%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；The metal
Bonding agent contains the mass percent of ingredient are as follows: Cu powder: 50%, Sn powder: 45%, Ti powder: 5%；Cu powder, Sn powder and Ti silty amount
The sum of percentage is 100%；Abrasive material circle porosity is 35%；The CBN abrasive material, Cu powder, Sn powder and Ti powder partial size be
40μm；The additional adhesive is acrylic emulsion.
The specific size of the grinding wheel is internal diameter 80mm, outer diameter 100mm, thickness 10mm.Macrohardness is 90HRB, punching
Hitting toughness is 0.20J/cm2, dry friction load is 50N, when the time is 5min, mass loss 16mg.
The manufacturing method of above-mentioned CBN grinding wheel, includes the following steps:
Step 1, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, mixed
Time is 1h, and mixture A is made；
Step 2, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 0.5h；
Step 3, it dries:
Mixture B is heated to 40 DEG C, drying soaking time is 1.5h, in mass ratio, the mixture B after drying: drying
Preceding mixture B=90%；
Step 4, it is sieved:
By the mixture B sieving after drying, crossing grit number is 20 mesh, is sieved 6 times；
Step 5, it forms:
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 50MPa, pressure maintaining
Abrasive material circle green compact are made in 60min；
Step 6, it is sintered:
(1) it by abrasive material circle green compact, is sintered under an argon atmosphere, with the heating rate of 5 DEG C/min, from room temperature to sintering
850 DEG C of temperature, sintering time 20min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds:
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, Metal Substrate CBN is made in finishing molding
Grinding wheel.
Embodiment 2
A kind of Metal Substrate CBN grinding wheel comprising steel core and abrasive material circle, steel core and abrasive material circle pass through resin glue caking agent knot
It closes, wherein abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 40%, metallic bond: 45%, it is auxiliary
Help binder: the sum of 15%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；The metal
Bonding agent contains the mass percent of ingredient are as follows: Cu powder: 60%, Sn powder: 30%, Ti powder: 10%；Cu powder, Sn powder and Ti silty
Measuring the sum of percentage is 100%；Abrasive material circle porosity is 45%；The CBN abrasive material, Cu powder, the partial size of Sn powder and Ti powder are equal
It is 60 μm；The additional adhesive is acrylic emulsion.
The specific size of the grinding wheel is internal diameter 80mm, outer diameter 100mm, thickness 10mm.Macrohardness is 93HRB, punching
Hitting toughness is 0.25J/cm2, dry friction load is 50N, when the time is 5min, mass loss 7mg.
The manufacturing method of above-mentioned CBN grinding wheel, includes the following steps:
Step 1, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, mixed
Time is 1h, and mixture A is made；
Step 2, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 0.5h；
Step 3, it dries:
Mixture B is heated to 50 DEG C, drying soaking time is 1h, in mass ratio, the mixture B after drying: before drying
Mixture B=93%；
Step 4, it is sieved:
By the mixture B sieving after drying, crossing grit number is 35 mesh, is sieved 5 times；
Step 5, it forms:
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 150MPa, pressure maintaining
Abrasive material circle green compact are made in 10min；
Step 6, it is sintered:
(1) it by abrasive material circle green compact, is sintered under an argon atmosphere, with the heating rate of 10 DEG C/min, from room temperature to burning
900 DEG C of junction temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds:
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, Metal Substrate CBN is made in finishing molding
Grinding wheel.
Embodiment 3
A kind of Metal Substrate CBN grinding wheel comprising steel core and abrasive material circle, steel core and abrasive material circle pass through resin glue caking agent knot
It closes, wherein abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 45%, metallic bond: 45%, it is auxiliary
Help binder: the sum of 10%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；The metal
Bonding agent contains the mass percent of ingredient are as follows: Cu powder: 55%, Sn powder: 45%, Ti powder: 5%；Cu powder, Sn powder and Ti silty amount
The sum of percentage is 100%；Abrasive material circle porosity is 33%,；The CBN abrasive material, Cu powder, Sn powder and Ti powder partial size be
75μm；The additional adhesive is acrylic emulsion.
The specific size of the grinding wheel is internal diameter 80mm, outer diameter 100mm, thickness 10mm.Macrohardness is 101HRB, punching
Hitting toughness is 0.30J/cm2, dry friction load is 50N, when the time is 5min, mass loss 4mg.
The manufacturing method of above-mentioned CBN grinding wheel, includes the following steps:
Step 1, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, mixed
Time is 1h, and mixture A is made；
Step 2, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 0.5h；
Step 3, it dries:
Mixture B is heated to 60 DEG C, drying soaking time is 0.5h, in mass ratio, the mixture B after drying: drying
Preceding mixture B=95%；
Step 4, it is sieved:
By the mixture B sieving after drying, crossing grit number is 100 mesh, is sieved 3 times；
Step 5, it forms:
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 100MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered:
(1) it by abrasive material circle green compact, is sintered under an argon atmosphere, with the heating rate of 10 DEG C/min, from room temperature to burning
950 DEG C of junction temperature, sintering time 30min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds:
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, Metal Substrate CBN is made in finishing molding
Grinding wheel.
Embodiment 4
A kind of Metal Substrate CBN grinding wheel comprising steel core and abrasive material circle, steel core and abrasive material circle pass through resin glue caking agent knot
It closes, wherein abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 32%, metallic bond: 60%, it is auxiliary
Help binder: the sum of 8%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；The metal knot
Mixture contains the mass percent of ingredient are as follows: Cu powder: 53%, Sn powder: 40%, Ti powder: 7%；Cu powder, Sn powder and Ti silty amount hundred
Dividing the sum of ratio is 100%；Abrasive material circle porosity is 30%；The CBN abrasive material, Cu powder, Sn powder and Ti powder partial size be 60 μ
m；The additional adhesive is acrylic emulsion.
The specific size of the grinding wheel is internal diameter 80mm, outer diameter 100mm, thickness 10mm.Macrohardness is 95HRB, punching
Hitting toughness is 0.22J/cm2, dry friction load is 50N, when the time is 5min, mass loss 10mg.
The manufacturing method of above-mentioned CBN grinding wheel, includes the following steps:
Step 1, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, mixed
Time is 1h, and mixture A is made；
Step 2, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 0.5h；
Step 3, it dries:
Mixture B is heated to 45 DEG C, drying soaking time is 1.2h, in mass ratio, the mixture B after drying: drying
Preceding mixture B=94%；
Step 4, it is sieved:
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 4 times；
Step 5, it forms:
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 75MPa, pressure maintaining
Abrasive material circle green compact are made in 40min；
Step 6, it is sintered:
(1) it by abrasive material circle green compact, is sintered under an argon atmosphere, with the heating rate of 10 DEG C/min, from room temperature to burning
1050 DEG C of junction temperature, sintering time 60min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds:
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, Metal Substrate CBN is made in finishing molding
Grinding wheel.
Embodiment 5
A kind of Metal Substrate CBN grinding wheel comprising steel core and abrasive material circle, steel core and abrasive material circle pass through resin glue caking agent knot
It closes, wherein abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 65%, metallic bond: 30%, it is auxiliary
Help binder: the sum of 5%, CBN abrasive material, metallic bond and additional adhesive mass percent are 100%；The metal knot
Mixture contains the mass percent of ingredient are as follows: Cu powder: 56%, Sn powder: 36%, Ti powder: 8%；Cu powder, Sn powder and Ti silty amount hundred
Dividing the sum of ratio is 100%；Abrasive material circle porosity is 25%；The CBN abrasive material, Cu powder, Sn powder and Ti powder partial size be 60 μ
m；The additional adhesive is acrylic emulsion.
The specific size of the grinding wheel is internal diameter 80mm, outer diameter 100mm, thickness 10mm.Macrohardness is 97HRB, punching
Hitting toughness is 0.26J/cm2, dry friction load is 50N, when the time is 5min, mass loss 5mg.
The manufacturing method of above-mentioned CBN grinding wheel, includes the following steps:
Step 1, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, mixed
Time is 1h, and mixture A is made；
Step 2, mixing:
By a kind of composition proportion of Metal Substrate CBN grinding wheel, additional adhesive is mixed with mixture A and is mixed by stirring
Even, mixture B is made in mixing time 0.5h；
Step 3, it dries:
Mixture B is heated to 50 DEG C, drying soaking time is 1h, in mass ratio, the mixture B after drying: before drying
Mixture B=93%；
Step 4, it is sieved:
By the mixture B sieving after drying, crossing grit number is 50 mesh, is sieved 4 times；
Step 5, it forms:
It uniformly puts into mold, the mixture B after sieving using hydraulic press cold moudling, pressure 100MPa, pressure maintaining
Abrasive material circle green compact are made in 30min；
Step 6, it is sintered:
(1) it by abrasive material circle green compact, is sintered under an argon atmosphere, with the heating rate of 15 DEG C/min, from room temperature to burning
1000 DEG C of junction temperature, sintering time 40min；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 7, it bonds:
With resin glue caking agent, abrasive material circle green body and steel core are bonded, remove Burr removal, Metal Substrate CBN is made in finishing molding
Grinding wheel.
Claims (10)
1. a kind of Metal Substrate CBN grinding wheel, which is characterized in that including steel core and abrasive material circle, in which:
The abrasive material circle is prepared from the following components by mass percentage: CBN abrasive material: 30~65%, metallic bond: 30
~60%, additional adhesive: 5~15%；
The metallic bond includes component and mass percent are as follows: Cu powder 50~60%, Sn powder: 30~45%, Ti powder: 5
~10%.
2. Metal Substrate CBN grinding wheel according to claim 1, which is characterized in that the steel core and abrasive material circle passes through resin
Glue caking agent combines.
3. Metal Substrate CBN grinding wheel according to claim 1, which is characterized in that the abrasive material circle porosity be 25~
45%.
4. Metal Substrate CBN grinding wheel according to claim 1, which is characterized in that the CBN abrasive material, Cu powder, Sn powder and Ti
The particle size range of powder is 40~75 μm.
5. Metal Substrate CBN grinding wheel according to claim 1, which is characterized in that the additional adhesive is propylene yogurt
Liquid.
6. Metal Substrate CBN grinding wheel according to claim 1, which is characterized in that the macroscopic view of the Metal Substrate CBN grinding wheel is hard
Degree is 90~101HRB, and impact flexibility is 0.20~0.30J/cm2, dry friction load is 50N, when the time is 5min, quality damage
Losing is 4~16mg.
7. the manufacturing method of Metal Substrate CBN grinding wheel described in claim 1, which comprises the steps of:
Step 1, mixing:
(1) composition proportion for pressing a kind of Metal Substrate CBN grinding wheel, CBN abrasive material, Cu powder, Sn powder and Ti powder are uniformly mixed, and are made mixed
Close material A；
(2) composition proportion for pressing a kind of Metal Substrate CBN grinding wheel, additional adhesive is uniformly mixed with mixture A, and mixture is made
B；
Step 2, it dries:
Mixture B is heated to 40~60 DEG C, drying is arrived in mass ratio, and the mixture B after drying: the mixture B=before drying
90~95%；
Step 3, sieving and molding:
(1) the mixture B after drying is sieved, crossing grit number is 20~100 mesh；
(2) the mixture B after sieving is pressed, pressure is 50~150MPa, 10~60min of pressure maintaining, and abrasive material is made
Enclose green compact；
Step 4, it is sintered:
(1) it by abrasive material circle green compact with the heating rate of 5~15 DEG C/min, from room temperature to 850~1050 DEG C of sintering temperature, burns
10~60min of time is tied, the sintering operation carries out under inert gas atmosphere；
(2)≤40 DEG C are cooled to after being sintered to come out of the stove, abrasive material circle green body is made；
Step 5, it bonds:
Abrasive material circle green body and steel core are bonded, Burr removal is removed, Metal Substrate CBN grinding wheel is made in finishing molding.
8. the manufacturing method of Metal Substrate CBN grinding wheel according to claim 7, which is characterized in that in the step 2, drying
Soaking time is 0.5~1.5h.
9. the manufacturing method of Metal Substrate CBN grinding wheel according to claim 7, which is characterized in that lazy in the step 4 (1)
Property gas be argon gas, it is therefore intended that carry out sintering operation under oxygen-free environment.
10. the manufacturing method of Metal Substrate CBN grinding wheel according to claim 7, which is characterized in that in the step 4 (1),
The formula that reacts in sintering process is as follows:
3Ti+2BN=TiB2+2TiN；
2Ti+BN=TiB+TiN.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604820A (en) * | 2020-05-27 | 2020-09-01 | 中铁隆昌铁路器材有限公司 | Porous steel rail grinding CBN grinding wheel and preparation method thereof |
| CN112828779A (en) * | 2021-01-21 | 2021-05-25 | 上海橄榄精密工具有限公司 | Preparation method of aluminum-based grinding wheel and grinding wheel |
| CN114290251A (en) * | 2022-01-25 | 2022-04-08 | 长沙市萨普新材料有限公司 | Fe-based cBN grinding wheel and preparation method thereof |
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| CN114290251A (en) * | 2022-01-25 | 2022-04-08 | 长沙市萨普新材料有限公司 | Fe-based cBN grinding wheel and preparation method thereof |
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