CN110722463A - Mirror finishing tool - Google Patents
Mirror finishing tool Download PDFInfo
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- CN110722463A CN110722463A CN201910845967.2A CN201910845967A CN110722463A CN 110722463 A CN110722463 A CN 110722463A CN 201910845967 A CN201910845967 A CN 201910845967A CN 110722463 A CN110722463 A CN 110722463A
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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
- B24D7/02—Wheels in one piece
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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
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention belongs to the technical field of mirror finishing, and discloses a mirror finishing tool, which comprises a base body, a transition layer and a working layer, wherein the transition layer and the working layer are sequentially arranged on the base body; the working layer comprises the following components in parts by weight: 10-60 parts of hard material, 10-20 parts of copper, 5-20 parts of nickel, 5-15 parts of chromium, 5-20 parts of iron, 5-20 parts of carbon and 5-15 parts of tin; the hard material is diamond and/or boron nitride. According to the mirror surface machining tool, the grinding/polishing process is integrated and integrated into one process to be completed, the traditional complex processes of coarse grinding, fine grinding, coarse polishing, fine polishing and the like are replaced, the machining and mirror surface polishing procedures are completed at one time, the machining time is 3-15 minutes, the mirror surface machining efficiency is improved by at least ten times, and the machining process is greatly simplified; the surface roughness of the workpiece obtained by processing can reach Ra0.025um grade; the mirror surface processing tool has high cutting force and high wear resistance, and can realize one-time mirror surface polishing processing of superhard alloy materials besides processing materials such as conventional copper, aluminum, steel and the like.
Description
Technical Field
The invention belongs to the technical field of mirror surface machining, and particularly relates to a mirror surface machining tool.
Background
Metal cutting is a process of removing excess material from a workpiece with a tool to obtain a part having a desired shape, dimensional accuracy, surface quality, and the like, and is an important process in machine manufacturing. Mirror finishing is a common method for metal cutting and is the most effective means for improving the quality and prolonging the service life of mechanical parts. Mirror finishing technology is widely applied in many fields, such as high-end dies, shafts/tiles/sleeves, cylinder bodies, pistons, plungers, bathroom/household metal parts and the like, which need to have smooth surfaces.
Surface roughness refers to the small pitch and small peak-to-valley unevenness of the machined surface of a part, and is a microscopic geometric error, generally denoted as Ra. In the metal cutting process, no matter what method is adopted, fine rugged tool marks are always left on the surface of a part, and the rough rugged tool marks are the surface roughness of the machined workpiece. The smaller the surface roughness, the smoother the surface, the better the life and reliability of the workpiece. After mirror finishing, the surface roughness Ra of the workpiece is generally less than 0.8 um. The traditional mirror finishing technology can be completed through the complicated processes of grinding, polishing and the like, the process is complex, the working hours are long, the efficiency is low, manpower and material resources are consumed, the technical defects are related to the poor performance of the traditional mirror finishing tool, for example, the traditional mirror finishing tool needs multiple tool cooperation, and the mirror finishing process can be completed through the complicated processes of grinding, polishing and the like.
Therefore, it is necessary to provide a tool which integrates the grinding and polishing processes into one process to complete the process, so as to replace the traditional complicated processes of rough grinding, fine grinding, rough polishing, fine polishing and the like, and complete the mirror surface processing at one time.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a mirror finishing tool. The mirror surface processing tool can realize grinding and polishing processing, and can achieve the mirror surface polishing effect at one time.
A mirror finishing tool comprises a base body, and a transition layer and a working layer which are arranged on the base body in sequence.
The base body is made of one of aluminum, aluminum alloy and stainless steel (the aluminum alloy is a general name of the alloy mainly based on the aluminum base, the main alloy elements comprise copper, silicon, magnesium, zinc and manganese, the secondary alloy elements comprise nickel, iron, titanium, chromium, lithium and the like; the stainless steel mainly comprises iron and a certain amount of carbon, and the main alloy element comprises chromium);
the transition layer is made of silver-copper alloy or aluminum brazing material;
the working layer comprises the following components in parts by weight: 10-60 parts of hard material, 10-20 parts of copper, 5-20 parts of nickel, 5-15 parts of chromium, 5-20 parts of iron, 5-20 parts of carbon and 5-15 parts of tin; the hard material is diamond and/or boron nitride.
Preferably, the transition layer is silver-copper alloy or aluminum brazing material; further preferably, the silver-copper alloy is a silver-copper 28 alloy.
Preferably, the working layer comprises the following components in parts by weight: 20-50 parts of hard material, 12-18 parts of copper, 5-15 parts of nickel, 5-10 parts of chromium, 5-15 parts of iron, 5-18 parts of carbon and 8-12 parts of tin.
Further preferably, the working layer comprises the following components in parts by weight: 30-40 parts of hard material, 16 parts of copper, 8 parts of nickel, 6 parts of chromium, 8 parts of iron, 8 parts of carbon and 8 parts of tin.
Preferably, the hard material is powder with the particle size of 0.1-5 um; further preferably, the hard material has a particle size of 0.1-2.5 um.
Preferably, the copper, the nickel, the chromium, the iron, the carbon and the tin are powder, and the particle size is 0.1-10 um; further preferably, the particle size of the copper, the nickel, the chromium, the iron, the carbon and the tin is 0.2-5 um.
The volume ratio of the substrate to the transition layer to the working layer is 1-2:0.5-2: 1-4; preferably, the volume ratio of the substrate to the transition layer to the working layer is 1-2:0.5-1: 2-3; further preferably, the volume ratio of the substrate, the transition layer and the working layer is 2:1: 3.
The structure and the size of the substrate are designed according to the equipment assembling position, and the substrate can be in the shape of a disc, a cylinder, a ball and the like.
A method for manufacturing a mirror-finished tool, comprising the steps of:
(1) weighing hard materials, copper, nickel, chromium, iron, carbon and tin according to the formula ratio, and fully mixing to prepare a working layer material;
(2) polishing aluminum, aluminum alloy or stainless steel, and cleaning to obtain a base material;
(3) pressing and molding the base material and the transition layer material prepared in the step (2) and the working layer material prepared in the step (1) according to the volume ratio of 1-2:0.5-2:1-4 to prepare a blank; the transition layer is made of silver-copper alloy or aluminum brazing material.
(4) And (4) sintering the blank prepared in the step (3) under the nitrogen atmosphere condition to prepare the mirror surface processing tool.
Preferably, the mixing in the step (1) is to fill the mixed material into a mixing barrel, install the mixing barrel in a mixer and mix the material for 1.5 to 2.5 hours to obtain the uniformly mixed working layer material.
Preferably, in the cleaning process in the step (2), dry cleaning gas with the pressure of 0.3-0.8MPa is adopted to blow and polish the surface of the base material for 2-10 minutes, and then alcohol is used for wiping until the base material is cleaned; preferably, the gas is air or nitrogen.
Preferably, the pressing pressure in the step (3) is 50-150MPa, the pressing time is 0.5-2 hours, and the pressing temperature is 60-180 ℃.
Preferably, the purity of the nitrogen in the step (4) is 99.999%, and the flow rate of the nitrogen is 20-50L/min.
Preferably, the sintering in step (4) comprises the following specific steps: heating from 10-35 ℃ to 350-450 ℃ within 30-60 minutes, then continuing heating to 500-700 ℃ within 5-20 minutes, preserving heat for 10-30 minutes, then heating to 700-1100 ℃ within 10-40 minutes, preserving heat for 40-120 minutes, and finally naturally cooling to 10-35 ℃;
a mirror finishing tool is shaped in accordance with a workpiece to be finished. Preferably, the mirror finishing tool is in the shape of a disc, a column, a sphere or a cone, and can meet the mirror finishing application of planes, inner holes, spheres, conical surfaces and the like.
According to the mirror finishing tool, the working layer is made of hard materials (diamond and/or boron nitride), copper, nickel, chromium, iron, carbon and tin in proper proportion, the cutting force is strong, and the grinding effect of a common grinding wheel can be realized; meanwhile, the abrasive particles of all components are small, the surface layer of the tool is uniform and consistent after sintering, in the processing process, a processing workpiece and a processing tool are clamped and fixed with equipment such as a grinding machine, a milling machine, a boring machine and the like, the position and the angle are fixed, the processing tool runs at a high speed (the rotating speed is 2800 and 3900r/min), the surface of the workpiece is uniformly and smoothly scraped, deep scratches are not formed, and the polishing effect is further achieved. Therefore, the grinding and polishing processes can be completed at one time.
Compared with the prior art, the invention has the following beneficial effects:
(1) the mirror surface processing tool integrates grinding and polishing processes into one process to finish, replaces the traditional complex processes of rough grinding, fine grinding, rough polishing, fine polishing and the like, finishes the processing and mirror surface polishing processes at one time, has the processing time of 3-15 minutes, improves the mirror surface processing efficiency by at least ten times, and greatly simplifies the processing process.
(2) The surface roughness of the workpiece obtained by the mirror surface machining tool can reach Ra0.025um grade.
(3) The mirror finishing tool has high cutting force and high wear resistance, and can realize one-time mirror polishing processing of superhard alloy materials besides processing materials such as conventional copper-aluminum steel and the like.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a schematic configuration diagram of a mirror-finishing tool for plane mirror finishing in example 1 of the present invention;
FIG. 2 is a schematic structural view of a mirror finishing tool for mirror finishing an inner hole according to example 2 of the present invention;
fig. 3 is a schematic structural view of a mirror-finishing tool for inner ball mirror finishing according to example 3 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are not intended to limit the scope of the claimed invention.
Example 1
A mirror finishing tool, as shown in FIG. 1, for plane mirror finishing, comprises a substrate 11, and a transition layer 12 and a working layer 13 sequentially arranged on the substrate 11, wherein the volume ratio of the substrate 11, the transition layer 12 and the working layer 13 is 2:0.5: 4; the base body 11 is made of aluminum alloy, and the transition layer 12 is made of silver-copper 28 alloy; the working layer 11 comprises the following components in parts by weight: 20 parts of boron nitride, 30 parts of diamond, 15 parts of copper, 7 parts of nickel, 8 parts of chromium, 6 parts of iron, 8 parts of carbon and 6 parts of tin.
Wherein the boron nitride and the diamond are powder with the grain diameter of 2.5 um; copper, nickel, chromium, iron, carbon and tin are powder, and the particle size is 5 um;
a method for manufacturing a mirror-finished tool, comprising the steps of:
(1) weighing the components of the working layer according to the formula amount, filling the components into a mixing barrel, and mounting the components in a mixer for mixing for 2.5 hours to prepare a working layer material;
(2) polishing the primary base material, blowing the polished surface of the material for 5 minutes by using dry clean air with the pressure of 0.8MPa, and wiping the surface by using alcohol until the surface is clean to obtain the base material;
(3) sequentially loading the base material obtained in the step (2), the transition layer material and the working layer material obtained in the step (1) into a forming die from inside to outside according to the volume ratio of 2:0.5:4, loading the die into a press, and pressing for 1 hour at the pressure of 150MPa and the temperature of 180 ℃ to obtain a blank;
(4) sintering the blank prepared in the step (3) under the condition of nitrogen atmosphere, wherein the specific process comprises the following steps: heating from 10-35 ℃ to 350 ℃ within 40 minutes, then continuously heating to 600 ℃ within 10 minutes, preserving heat for 20 minutes, then heating to 800 ℃ within 30 minutes, preserving heat for 120 minutes, and finally naturally cooling to 10-35 ℃; the purity of the nitrogen gas is 99.999 percent, and the flow rate of the nitrogen gas is 25L/min. Thus obtaining the mirror finishing tool.
And (3) clamping and grinding the mirror surface machining tool and the workpiece, fixing the position and the angle, machining for 10 minutes, and measuring the surface roughness Ra0.025um of the workpiece.
Example 2
A mirror finishing tool is used for inner hole mirror finishing and comprises a base body 21, a transition layer 22 and a working layer 23 which are sequentially arranged on the base body 21, wherein the volume ratio of the base body 21 to the transition layer 22 to the working layer 23 is 2:1: 3; the base body 21 is made of stainless steel, and the transition layer 22 is made of aluminum brazing solder; the working layer 23 comprises the following components in parts by weight: 40 parts of boron nitride, 16 parts of copper, 8 parts of nickel, 7 parts of chromium, 7 parts of iron, 8 parts of carbon and 14 parts of tin.
Wherein the diamond is powder with the grain diameter of 5 um; copper, nickel, chromium, iron, carbon and tin are powder, and the particle size is 10 um;
a method for manufacturing a mirror-finished tool, comprising the steps of:
(1) weighing the components of the working layer according to the formula amount, filling the components into a mixing barrel, and mounting the components in a mixer for mixing for 2 hours to prepare a working layer material;
(2) polishing the primary base material, blowing the polished surface of the material for 4 minutes by using dry clean compressed air with the pressure of 0.5MPa, and wiping the surface by using alcohol until the surface is clean to obtain the base material;
(3) sequentially loading the base material obtained in the step (2), the transition layer material and the working layer material obtained in the step (1) into a forming die from inside to outside according to the volume ratio of 2:1:3, loading the die into a press, and pressing for 1.5 hours at the pressure of 100MPa and the temperature of 120 ℃ to obtain a blank;
(4) sintering the blank prepared in the step (3) under the condition of nitrogen atmosphere, wherein the specific sintering process comprises the following steps: heating from 10-35 ℃ to 350 ℃ within 30 minutes, then continuously heating to 650 ℃ within 20 minutes, preserving heat for 30 minutes, then heating to 900 ℃ within 20 minutes, preserving heat for 90 minutes, and finally naturally cooling to 10-35 ℃; the purity of the nitrogen gas is 99.999 percent, and the flow rate of the nitrogen gas is 20L/min. Thus obtaining the mirror finishing tool.
And (3) clamping and grinding the mirror surface machining tool and the workpiece, fixing the position and the angle, machining for 15 minutes, and measuring the surface roughness Ra0.05um of the workpiece.
Example 3
A mirror finishing tool is used for mirror finishing of an inner spherical surface, and comprises a base body 31, a transition layer 32 and a working layer 33, wherein the transition layer 32 and the working layer 33 are sequentially arranged on the base body 31, and the volume ratio of the base body 31 to the transition layer 32 to the working layer 33 is 2:2: 3; the base 31 is made of aluminum, and the transition layer 32 is made of silver-copper 28 alloy; the working layer 33 comprises the following components in parts by weight: 10 parts of boron nitride, 30 parts of diamond, 12 parts of copper, 6 parts of nickel, 8 parts of chromium, 7 parts of iron, 10 parts of carbon and 7 parts of tin.
Wherein the boron nitride is powder with the grain diameter of 1 um; copper, nickel, chromium, iron, carbon and tin are powder, and the particle size is 2.5 um.
A method for manufacturing a mirror-finished tool, comprising the steps of:
(1) weighing the components of the working layer according to the formula amount, filling the components into a mixing barrel, and mixing the components in the mixing barrel for 1.5 hours to prepare a working layer material;
(2) polishing the primary base material, blowing the polished surface of the material for 2 minutes by using dry clean compressed air with the pressure of 0.3MPa, and wiping the surface by using alcohol until the surface is clean to obtain the base material;
(3) sequentially loading the base material obtained in the step (2), the transition layer material and the working layer material obtained in the step (1) into a forming die from inside to outside according to the volume ratio of 2:2:3, loading the die into a press, and pressing for 2 hours at the pressure of 50MPa and the temperature of 60 ℃ to obtain a blank;
(4) sintering the blank prepared in the step (3) under the condition of nitrogen atmosphere, wherein the specific sintering process comprises the following steps: heating from 10-35 ℃ to 450 ℃ within 60 minutes, then continuously heating to 700 ℃ within 40 minutes, preserving heat for 30 minutes, then heating to 1100 ℃ within 10 minutes, preserving heat for 40 minutes, and finally naturally cooling to 10-35 ℃; the purity of the nitrogen gas is 99.999 percent, and the flow rate of the nitrogen gas is 35L/min. Thus obtaining the mirror finishing tool.
And (3) clamping and grinding the mirror surface machining tool and the workpiece, fixing the position and the angle, machining for 5 minutes, and measuring the surface roughness Ra0.025um of the workpiece.
Comparative example 1
The particle size of the boron nitride in the embodiment 1 is changed to 10 um; the grain sizes of copper, nickel, chromium, iron, carbon and tin are changed to 15 um; the rest of the raw materials and the preparation method are the same as the example 1.
The mirror surface processing tool and the workpiece in example 1 were mounted on a chuck and a grinder, the position and angle were fixed, and the workpiece was processed for 10 minutes to determine the surface roughness ra0.8um of the workpiece.
Comparative example 2
The carbon and tin of example 2 were not added; the rest raw materials and the preparation method are the same as the example 2.
The mirror surface processing tool and the workpiece in the embodiment 2 were clamped and ground, fixed in position and angle, processed for 15 minutes, and measured to obtain a surface roughness ra0.4um of the workpiece.
Comparative example 3
The specific process of sintering in example 3 was changed to: heating from 10-35 ℃ to 200 ℃ within 60 minutes, then continuously heating to 400 ℃ within 40 minutes, preserving heat for 50 minutes, then heating to 750 ℃ within 10 minutes, preserving heat for 30 minutes, and finally naturally cooling to 10-35 ℃; the rest of the raw materials and the preparation method are the same as the example 3.
The mirror surface processing tool and the workpiece used in example 3 were mounted on a chucking and grinding machine, fixed in position and angle, and processed for 5 minutes to determine the surface roughness ra0.8um of the workpiece.
Claims (10)
1. A mirror finishing tool is characterized by comprising a base body, a transition layer and a working layer, wherein the transition layer and the working layer are sequentially arranged on the base body; the working layer comprises the following components in parts by weight: 10-60 parts of hard material, 10-20 parts of copper, 5-20 parts of nickel, 5-15 parts of chromium, 5-20 parts of iron, 5-20 parts of carbon and 5-15 parts of tin; the hard material is diamond and/or boron nitride.
2. The mirror-finishing tool according to claim 1, wherein a material of the base is aluminum, an aluminum alloy, or stainless steel; the transition layer is made of silver-copper alloy or aluminum brazing material.
3. The mirror-finishing tool of claim 1, wherein the working layer comprises, in parts by weight: 20-50 parts of hard material, 12-18 parts of copper, 5-15 parts of nickel, 5-10 parts of chromium, 5-15 parts of iron, 5-18 parts of carbon and 8-12 parts of tin.
4. The mirror-finishing tool according to claim 1 or 3, wherein the hard material is a powder having a particle diameter of 0.1 to 5 um; the copper, the nickel, the chromium, the iron, the carbon and the tin are powder, and the particle size is 0.1-10 um.
5. The mirror-finishing tool according to claim 1, wherein the volume ratio of the base body, the transition layer and the working layer is 1-2:0.5-2: 1-4.
6. The mirror-finishing tool according to claim 1, wherein the shape of the mirror-finishing tool comprises any one of a disc shape, a cylindrical shape, a spherical shape, and a conical shape.
7. A method for producing a mirror-finished tool according to any one of claims 1 to 6, comprising the steps of:
(1) weighing the hard material, copper, nickel, chromium, iron, carbon and tin according to the formula ratio, and mixing to prepare a working layer material;
(2) polishing and cleaning aluminum, aluminum alloy or stainless steel to prepare a base material;
(3) pressing the base material and the transition layer material prepared in the step (2) and the working layer material prepared in the step (1) to prepare a blank; the transition layer is made of silver-copper alloy or aluminum brazing material;
(4) and (4) sintering the blank prepared in the step (3) to prepare the mirror finishing tool.
8. The method according to claim 7, wherein the cleaning in the step (2) is performed by blowing gas at a pressure of 0.3 to 0.8MPa for 2 to 10 minutes and then wiping with alcohol.
9. The production method according to claim 7, wherein the pressure of the pressing in the step (3) is 50 to 150MPa, the time of the pressing is 0.5 to 2 hours, and the temperature of the pressing is 60 to 180 ℃.
10. The preparation method according to claim 7, wherein the sintering in the step (4) is carried out by the following specific process: heating from 10-35 ℃ to 350-450 ℃ within 30-60 minutes, then continuing heating to 500-700 ℃ within 5-20 minutes, preserving the heat for 10-30 minutes, then heating to 700-1100 ℃ within 10-40 minutes, preserving the heat for 40-120 minutes, and finally cooling to 10-35 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845967.2A CN110722463A (en) | 2019-09-09 | 2019-09-09 | Mirror finishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845967.2A CN110722463A (en) | 2019-09-09 | 2019-09-09 | Mirror finishing tool |
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| CN110722463A true CN110722463A (en) | 2020-01-24 |
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| CN201910845967.2A Pending CN110722463A (en) | 2019-09-09 | 2019-09-09 | Mirror finishing tool |
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Citations (5)
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|---|---|---|---|---|
| JP2001219377A (en) * | 1999-11-29 | 2001-08-14 | Allied Material Corp | Vitrified bond super abrasive wheel for mirror finishing |
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| JP3791610B2 (en) * | 2000-09-13 | 2006-06-28 | 株式会社アライドマテリアル | Super abrasive wheel for mirror finishing |
| JP2008062310A (en) * | 2006-09-05 | 2008-03-21 | Allied Material Corp | Metal bonded superabrasive wheel |
| CN105142861A (en) * | 2013-04-30 | 2015-12-09 | Hoya株式会社 | Grinding stone, method for manufacturing glass substrate for magnetic disc, and magnetic disc manufacturing method |
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2019
- 2019-09-09 CN CN201910845967.2A patent/CN110722463A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| JP2001219377A (en) * | 1999-11-29 | 2001-08-14 | Allied Material Corp | Vitrified bond super abrasive wheel for mirror finishing |
| JP3791610B2 (en) * | 2000-09-13 | 2006-06-28 | 株式会社アライドマテリアル | Super abrasive wheel for mirror finishing |
| CN1562569A (en) * | 2004-04-06 | 2005-01-12 | 北京工业大学 | Superhard abrasive grinding wheel of metal binding agent eletrolyzable online, and preparation method |
| JP2008062310A (en) * | 2006-09-05 | 2008-03-21 | Allied Material Corp | Metal bonded superabrasive wheel |
| CN105142861A (en) * | 2013-04-30 | 2015-12-09 | Hoya株式会社 | Grinding stone, method for manufacturing glass substrate for magnetic disc, and magnetic disc manufacturing method |
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| 宋月清等: "《人造金刚石工具手册》", 31 January 2014, 冶金工业出版社 * |
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