CN109016100A - Advanced ceramics green compact precision machining method and advanced ceramics product and making method - Google Patents
Advanced ceramics green compact precision machining method and advanced ceramics product and making method Download PDFInfo
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- CN109016100A CN109016100A CN201810699393.8A CN201810699393A CN109016100A CN 109016100 A CN109016100 A CN 109016100A CN 201810699393 A CN201810699393 A CN 201810699393A CN 109016100 A CN109016100 A CN 109016100A
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- green compact
- advanced ceramics
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- precision machining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention relates to a kind of advanced ceramics green compact precision machining method and advanced ceramics product and making method, green compact precision machining method includes: to calculate the size requirement after determining green machined according to the shape and size of product, writes the program finished to green compact；The frock clamp of green compact finishing is selected according to the shape and structure of product, and will be in green compact positioning and clamping to the frock clamp；Machining is carried out to green compact using numerically-controlled machine tool, revolving speed control is 2300~2700r/min, and depth of cut control is 2.8~3.2mm, and main axle moving speed is 1900~2300mm/min.Ceramic manufacturing method includes: mixing and granulation；Compression moulding green compact；Green compact are finished；Sintering；Accurate grinding is carried out to ceramic semifinished product to process to obtain advanced ceramics product.The present invention reduces the difficulty that advanced ceramics finish ripe base under the premise of keeping product quality, shortens the Ceramic Production period, reduces production cost.
Description
Technical field
The invention belongs to the technical fields of ceramics manufacture processing, more particularly to a kind of advanced ceramics green compact Precision Machining side
Method and advanced ceramics product and making method.
Background technique
Existing advanced ceramics production technology usually only includes mixing, and molding is sintered and finishes this four processes.
And the advanced ceramics component in the high-precision pointed collar domain Grand Equipments such as be used for semiconductor, liquid crystal display panel does not require nothing more than product purity usually
Height, and required precision is extremely harsh, also can't permit the flaw in terms of any microstructure.This kind of ceramic is by all kinds of height
Pure advanced ceramics powder is made, the common characteristic of these components are as follows:
1. size is very big: it is very common that diameter reaches the disk of 500mm, annulus dress product；
2. structure is complicated: there are also step or the labyrinths at inclination angle for many products；
3. product purity is high: due in high-grade, precision and advanced field, product to be made of highly pure powder, to ensure the object of product
Physicochemical performance, therefore all have the wear-resisting property of superelevation.
Therefore, this kind of advanced ceramics product requires to be processed after sintering porcelain by harsh finishing technology
Qualified product could be obtained, to meet benefit and quality IDE requirement.Also just because of above-mentioned reason, the essence of product is increased
Difficulty of processing greatly extends process-cycle and the processing cost of product.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of advanced ceramics green compact precision machining method and advanced ceramics
Product and making method reduces the difficulty that advanced ceramics finish ripe base under the premise of keeping product quality, shortens ceramic system
The product production cycle reduces production cost.
The technical solution adopted by the present invention to solve the technical problems is to provide a kind of advanced ceramics green compact Precision Machining side
Method, comprising the following steps:
(1) the size requirement after determining green machined is calculated according to the shape and size of product；
(2) frock clamp of green compact finishing is selected according to the shape and structure of product, and by green compact positioning and clamping described in
Frock clamp on；
(3) machining is carried out to green compact using numerically-controlled machine tool, revolving speed control is 2300~2700r/min, depth of cut control
It is made as 2.8~3.2mm, main axle moving speed is 1900~2300mm/min.
The numerically-controlled machine tool uses numerically controlled lathe or CNC milling machine.
The revolving speed control is 2500r/min.
The depth of cut control is 3.0mm.
The main axle moving speed is 2100mm/min.
The technical solution adopted by the present invention to solve the technical problems is to provide a kind of advanced ceramics product and making method, packet
Include following steps:
(1) the advanced ceramics powder that selection purity meets carries out mixing and granulation；
(2) green compact are pressed to above-mentioned granulation at mold tool in the static pressure such as use；
(3) green compact obtained are finished using advanced ceramics green compact precision machining method described in claim 1；
(4) green compact finished to finishing are sintered；
(5) accurate grinding is carried out to the ceramic semifinished product that sintering is completed to process to obtain advanced ceramics product.
The advanced ceramics powder is the alumina powder that purity is 99.0% or more.
Beneficial effect
The present invention gets rid of the prior art limitation of ceramic manufacture, finishes before sintering to green compact, green compact
The depth of cut in finishing passes improves nearly 100 times to the depth of cut of ripe base processing compared to after sintering, green compact finishing passes
In main axle moving speed nearly 50 times is improved to the main axle moving speed of ripe base processing compared to after sintering, and precision controlling requirement
Relatively ripe base processing is low, and the green compact by finishing are capable of the size and shape of very close final products after completing sintering, from
And time-consuming amount ripe base Precision Machining process big, with high costs is greatly reduced, compared with the prior art, it is raw to shorten ceramic
The period about 30% is produced, while reducing production cost.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
A kind of advanced ceramics green compact precision machining method, comprising the following steps:
(1) the size requirement after determining green machined is calculated according to the shape and size of product；
(2) frock clamp of green compact finishing is selected according to the shape and structure of product, and by green compact positioning and clamping described in
Frock clamp on；
(3) turnery processing is carried out to green compact using numerically controlled lathe, revolving speed control is 2300~2700r/min, depth of cut control
It is made as 2.8~3.2mm, main axle moving speed is 1900~2300mm/min.
A kind of advanced ceramics product and making method using above-mentioned advanced ceramics green compact precision machining method is provided below, wraps
Include following steps:
(4) purity is selected to carry out mixing and granulation for 99.5% alumina powder；
(5) green compact are pressed to above-mentioned granulation at mold tool in the static pressure such as use；
(6) green compact obtained are finished using above-mentioned advanced ceramics green compact precision machining method；
(7) green compact finished to finishing are sintered；
(8) accurate grinding is carried out to the ceramic semifinished product that sintering is completed to process to obtain advanced ceramics product.
Since ceramic green is very fragile, slightly shaking or impact before sintering will result in various can not discover
The defects of internal fissure, chipping, is unable to satisfy for the advanced ceramics in the high-precision pointed collar domain Grand Equipments such as semiconductor, liquid crystal display panel
The quality of component needs, and therefore, existing ceramic process all selects to be processed again after sintering is mature, to avoid quality
Problem not up to standard, defect rate is high.For the quality for guaranteeing advanced ceramics product, a system has been carried out to green compact fine-processing technique parameter
It is as shown in the table to obtain key data for the research of column.
| Experimental group | Revolving speed | The depth of cut | Main axle moving | Surface roughness | Chipping amount | Cutter life |
| 1 | 1500r/min | 2mm | 1900mm/min | Ra 2.0 | 8% | 0.6 |
| 2 | 1500r/min | 3mm | 2100mm/min | Ra 2.0 | 8% | 0.7 |
| 3 | 1500r/min | 4mm | 2400mm/min | Ra 2.0 | 8% | 0.6 |
| 4 | 2000r/min | 2mm | 1900mm/min | Ra 1.0 | 5% | 0.6 |
| 5 | 2000r/min | 3mm | 2100mm/min | Ra 1.0 | 5% | 0.8 |
| 6 | 2000r/min | 4mm | 2400mm/min | Ra 1.0 | 5% | 0.8 |
| 7 | 2500r/min | 2mm | 1900mm/min | Ra 0.6 | 0% | 0.7 |
| 8 | 2500r/min | 3mm | 2100mm/min | Ra 0.6 | 0% | 1.0 |
| 9 | 2500r/min | 4mm | 2400mm/min | Ra 0.6 | 0% | 0.9 |
| 10 | 3000r/min | 2mm | 1900mm/min | Ra 0.6 | 0% | 0.9 |
| 11 | 3000r/min | 3mm | 2100mm/min | Ra 0.6 | 0% | 1.0 |
| 12 | 3000r/min | 4mm | 2400mm/min | Ra 0.6 | 0% | 0.9 |
By the research to experimental data, comprehensive comparison show that revolving speed control is 2500r/min, depth of cut control is
When 3.0mm, main axle moving speed are 2100mm/min, it can obtain that roughness is Ra0.6, the qualified of chipping first will be not ceramic
Product, and cutter life is long.
Claims (7)
1. a kind of advanced ceramics green compact precision machining method, comprising the following steps:
(1) the size requirement after determining green machined is calculated according to the shape and size of product；
(2) frock clamp of green compact finishing is selected according to the shape and structure of product, and by green compact positioning and clamping to the work
In clamps；
(3) machining is carried out to green compact using numerically-controlled machine tool, revolving speed control is 2300~2700r/min, and depth of cut control is
2.8~3.2mm, main axle moving speed are 1900~2300mm/min.
2. a kind of advanced ceramics green compact precision machining method according to claim 1, it is characterised in that: the numerically-controlled machine tool
Using numerically controlled lathe or CNC milling machine.
3. a kind of advanced ceramics green compact precision machining method according to claim 1 or 2, it is characterised in that: the revolving speed
Control is 2500r/min.
4. a kind of advanced ceramics green compact precision machining method according to claim 1 or 2, it is characterised in that: the feed
Amount control is 3.0mm.
5. a kind of advanced ceramics green compact precision machining method according to claim 1 or 2, it is characterised in that: the main shaft
Movement speed is 2100mm/min.
6. a kind of advanced ceramics product and making method, comprising the following steps:
(1) the advanced ceramics powder that selection purity meets carries out mixing and granulation；
(2) green compact are pressed to above-mentioned granulation at mold tool in the static pressure such as use；
(3) green compact obtained are finished using advanced ceramics green compact precision machining method described in claim 1；
(4) green compact finished to finishing are sintered；
(5) accurate grinding is carried out to the ceramic semifinished product that sintering is completed to process to obtain advanced ceramics product.
7. a kind of advanced ceramics product and making method according to claim 6, it is characterised in that: the advanced ceramics powder
The alumina powder for being 99.0% or more for purity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810699393.8A CN109016100A (en) | 2018-06-29 | 2018-06-29 | Advanced ceramics green compact precision machining method and advanced ceramics product and making method |
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| CN201810699393.8A CN109016100A (en) | 2018-06-29 | 2018-06-29 | Advanced ceramics green compact precision machining method and advanced ceramics product and making method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098392A (en) * | 2020-01-08 | 2020-05-05 | 山东大学 | Manufacturing method of large-size ceramic part with complex surface |
| CN111890522A (en) * | 2020-07-24 | 2020-11-06 | 中国科学院上海光学精密机械研究所 | Method for processing spherical cover optical element |
| CN113601732A (en) * | 2021-06-26 | 2021-11-05 | 成都凯迪精工科技有限责任公司 | Processing method of ceramic material wind tunnel model |
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| CN104211407A (en) * | 2014-09-05 | 2014-12-17 | 中国钢研科技集团有限公司 | Process for forming large-size complex-shaped silicon carbide ceramic biscuit |
| CN104446383A (en) * | 2013-09-22 | 2015-03-25 | 扬州三山工业陶瓷有限公司 | Large-size alumina integral ceramic arched plate and manufacturing method thereof |
| US20160089811A1 (en) * | 2014-09-30 | 2016-03-31 | Apple Inc. | Machining features in a ceramic component for use in an electronic device |
| CN108115814A (en) * | 2017-12-15 | 2018-06-05 | 东莞中瓷光电科技有限公司 | A kind of ceramic manual casing processing technology |
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2018
- 2018-06-29 CN CN201810699393.8A patent/CN109016100A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446383A (en) * | 2013-09-22 | 2015-03-25 | 扬州三山工业陶瓷有限公司 | Large-size alumina integral ceramic arched plate and manufacturing method thereof |
| CN104211407A (en) * | 2014-09-05 | 2014-12-17 | 中国钢研科技集团有限公司 | Process for forming large-size complex-shaped silicon carbide ceramic biscuit |
| US20160089811A1 (en) * | 2014-09-30 | 2016-03-31 | Apple Inc. | Machining features in a ceramic component for use in an electronic device |
| CN108115814A (en) * | 2017-12-15 | 2018-06-05 | 东莞中瓷光电科技有限公司 | A kind of ceramic manual casing processing technology |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098392A (en) * | 2020-01-08 | 2020-05-05 | 山东大学 | Manufacturing method of large-size ceramic part with complex surface |
| CN111890522A (en) * | 2020-07-24 | 2020-11-06 | 中国科学院上海光学精密机械研究所 | Method for processing spherical cover optical element |
| CN111890522B (en) * | 2020-07-24 | 2022-04-05 | 中国科学院上海光学精密机械研究所 | Method for processing spherical cover optical element |
| CN113601732A (en) * | 2021-06-26 | 2021-11-05 | 成都凯迪精工科技有限责任公司 | Processing method of ceramic material wind tunnel model |
| CN113601732B (en) * | 2021-06-26 | 2023-11-03 | 成都凯迪精工科技有限责任公司 | Processing method of ceramic material wind tunnel model |
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Application publication date: 20181218 |