CN109465711A - Abrasive water-jet grooving-skive is turned a millstone Compound Machining ceramic methods - Google Patents
Abrasive water-jet grooving-skive is turned a millstone Compound Machining ceramic methods Download PDFInfo
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- CN109465711A CN109465711A CN201811267333.5A CN201811267333A CN109465711A CN 109465711 A CN109465711 A CN 109465711A CN 201811267333 A CN201811267333 A CN 201811267333A CN 109465711 A CN109465711 A CN 109465711A
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- Prior art keywords
- millstone
- processing
- grooving
- skive
- jet
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The present invention provides a kind of abrasive water-jet grooving-skive and turns a millstone Compound Machining ceramic methods comprising step 1, needs to carry out grooving processing, formation parallel flanges on flat ceramic workpiece using abrasive water-jet lathe by processing；Step 2, processing of turning a millstone is carried out to the parallel flanges that step 1 is formed using skive, until reaching processing needs.Wherein, mainly water and the abrasive grain of Abrasive Water Jet Machining processing consumption, without tool wear in process, abrasive material used is low in cost, can greatly reduce processing cost.To sum up, the present invention utilizes crack propagation effect, can realize in higher feed speed and under the premise of without tool wear the high removal rate processing of the hard brittle materials such as ceramics.
Description
Technical field
The invention belongs to the coarse working techniques field of hard brittle material, especially a kind of abrasive water applied on engineering ceramics
Jet stream grooving-skive is turned a millstone Combined Machining Technology.
Background technique
Engineering ceramic material, such as silicon carbide, silicon nitride, aluminium oxide have high hardness and corrosion resistance, wear-resistant etc. excellent
Performance has a wide range of applications in engineering field.But due to the high rigidity of ceramic material, cause its processing more difficult, and
The characteristics of itself brittleness, it will appear the machining damages such as crackle, chipping in process, therefore ceramic material high efficiency, low damage
The processing of wound is always a great problem of industry.There are the Conventional machining methods such as grinding, turning, milling in the prior art,
Just like special processing technologies such as laser processing, ultrasonic vibration aided grinding processing, Abrasive Water Jet Machinings, but either tradition machinery
Processing method or special processing technology, there is various insurmountable technical problems.
Although Conventional machining methods can obtain higher machining accuracy and preferable processing quality, it is processed into
This height, processing efficiency is low, and tool wear is serious.Due to the hard brittleness of ceramic material, in tradition machinery process, material can go out
Existing crackle, chipping equivalent damage, and the processing methods such as grinding, turning will lead to material finished surface there are heat affected areas and high temperature melting
Region is covered, will affect the performance of ceramic material to a certain extent.In addition, in process cutter abrasion, will affect material
Processing quality and processing efficiency.
Although special processing technology can effectively reduce grinding force and face crack, improve processing efficiency, reduce tool wear,
But its processing technology is not mature enough, and processing cost is higher, and machining accuracy is also not so good as Conventional machining methods.
It is not able to satisfy the mechanical requirements of high efficiency, high quality based on above-mentioned single processing technology, has thus derived compound add
Work technology, as grinding wheel grooving-turn a millstone combined type processing.
Due to that can result from extension with crackle during Ceramic manufacturing, and the propagation direction of crackle is random, land
Armored force institute, army, using the High Efficient Machining Technology of this ceramic Research on Characteristics ceramic material, proposed a kind of pottery in 2009
Porcelain grooving-is turned a millstone combined processing method (patent: 201611081661.7).Grinding wheel grooving-turn a millstone combined type process first
Process is grooving processing, and using soldering skive piece, thickness is about 2.5mm, carries out grooving processing on the surface of the material, obtains
Flange with certain thickness and height, grooving processing are equally the processes of precrack, can generate in flange many directions with
The micro-crack of machine, in order to slow down the rate of wear of grooving grinding wheel, cutting groove depth maximum is no more than 6mm；Second operation work is to use
Pushing grinding is carried out to flange to along flange root with certain thickness grinding wheel, it is convex in order to guarantee to completely remove
Edge, and flange root be ground and then obtains the preferable machined surface quality of quality, depth of turning a millstone is greater than flange height.
In order to slow down the rate of wear for grinding wheel of turning a millstone, speed of turning a millstone maximum is no more than 10mm/min.
But in the actual processing process, since grooving speed and speed of turning a millstone are all relatively slow, cause this method for improving
Material removing rate effect is unobvious, and according to biggish feed speed, it will cause the quickenings of abrasion of grinding wheel speed, and increase greatly
Processing cost is added.
Summary of the invention
It turns a millstone Compound Machining ceramics in view of the deficienciess of the prior art, the present invention provides a kind of Abrasive Water Jet Machining-
Technology utilizes crack propagation effect, can realize in higher feed speed, lower processing cost and without tool wear under the premise of
The high removal rate of the hard brittle materials such as ceramics is processed.
To achieve the goals above, abrasive water-jet of the invention grooving-skive is turned a millstone Compound Machining ceramics side
Method, comprising the following steps: step 1, need to carry out grooving on flat ceramic workpiece using abrasive water-jet lathe by processing to add
Work forms parallel flanges；Step 2, processing of turning a millstone is carried out to the parallel flanges that step 1 is formed using skive, until reaching
It is needed to processing.
Effect is preferable, the machined parameters of the abrasive water-jet lathe are as follows: grooving feed speed is 40-60mm/min；
Pressure is 240-300Mpa；Range L is 2-6mm；Nozzle lateral distance, that is, thickness of flange is 2-4mm；Cutting obtains recessed
Groove depth is 6mm-12mm.
Further, grooving processing, the i.e. road grooving Hou Yanyuan are carried out using " reversed secondary cut " method in the step 1
Diameter is reversed secondary cut, and this method can effectively improve quality of notch.
Further, the skive used in the step 2 is equipped with the column grinding wheel of handle, the abrasive wheel end face for middle part
Diamond particles, grinding wheel shank diameter 13mm, grinding wheel diameter 60mm, height 35mm, grinding wheel abrasive grain mesh number 100 are coated with cylinder
Mesh, grinding wheel speed n=5000r/min-7000r/min, speed of turning a millstone v=3mm/min-15mm/min, turn a millstone angle i.e. grinding wheel into
It is 0 ° -90 ° to the angle β between direction and flange.
Effect is better, and the depth of turning a millstone in step 2 is 0.2mm-0.5mm bigger than the depth of flange that step 1 obtains.
Beneficial effects of the present invention:
(1) grooving is high-efficient
Abrasive water-jet grooving feed speed is 40-60mm/min, and grinding wheel grooving feed speed is generally less than 5mm/
min。
(2) processing cost is low
Mainly water and the abrasive grain of Abrasive Water Jet Machining processing consumption, it is used without tool wear in process
Abrasive material is low in cost, can greatly reduce processing cost.
(3) secondary cut improves quality of notch
Grooving processing is carried out using " reversed secondary cut " method, i.e., is reversed secondary cut along original route after grooving,
It can further improve quality of notch.
(4) mode of turning a millstone is mature
Processing of turning a millstone is carried out to grooving flange using normal diamond grinding wheel, high material removing rate processing can be realized.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the flange schematic diagram that grooving of the present invention obtains；
Fig. 2 is the skive schematic diagram that the present invention uses；
Fig. 3 is machining sketch chart of turning a millstone of the invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
For the grooving manufacturing procedure in the present invention, lathe used in Abrasive Water Jet Machining is Nanjing the earth water knife share
The abrasive water-jet lathe of Co., Ltd's production, the performance parameter of abrasive water-jet lathe are as shown in table 1.
In order to intuitively embody the advantage of abrasive water-jet grooving processing, grinding wheel and abrasive water-jet is respectively adopted in plate
Grooving processing is carried out on aluminium oxide ceramics workpiece.
Wherein, grinding wheel grooving machined parameters are as follows: feed speed V1=5-10mm/min, depth of cut h=2.5-4.5mm,
Thickness of flange b=2-4mm；
Abrasive Water Jet Machining machined parameters are as follows: feed speed V2=40-60mm/min, pressure P=240-300Mpa, target
Away from L=2-6mm, nozzle lateral distance (thickness of flange) B=2-4mm.
For the flange that grooving obtains as shown in Figure 1, since abrasive water-jet is Flexible Manufacture mode, the groove cut is deep
There are errors for degree, measure per pass depth of groove, depth is between 6mm-12mm.
Table 1
For the grooving manufacturing procedure in the present invention, turned a millstone processing using skive.In BV75 vertical machining centre
On, using band handle skive (as shown in Figure 2), turn a millstone processing (such as Fig. 3 institute to the flange that two methods are cut
Show), grinding wheel shank diameter 13mm, grinding wheel diameter 60mm, height 35mm, 100 mesh of abrasive grain mesh number, machined parameters are as follows: grinding wheel speed n=
5000r/min-7000r/min, speed of turning a millstone v=3mm/min-15mm/min, (grinding wheel direction of feed and flange press from both sides at angle of turning a millstone
Angle) a=0 ° -90 °.Determined and turned a millstone depth according to practical flange height, to guarantee that flange can be completely removed, depth of turning a millstone than
The big 0.2mm-0.5mm of depth of flange.
The material removing rate for calculating two methods turns a millstone Compound Machining for grooving-, and process time should include the grooving time
With the time of turning a millstone.By calculating, skive grooving-turns a millstone rapidoprint removal rate as 2.8-4.9mm3/ s, abrasive water jet
Stream grooving-turns a millstone rapidoprint removal rate as 20.76-25.43mm3/ s, processing efficiency are highly improved.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
- The Compound Machining ceramic methods 1. a kind of abrasive water-jet grooving-skive is turned a millstone, which is characterized in thatStep 1, it needs to carry out grooving processing on flat ceramic workpiece using abrasive water-jet lathe by processing, be formed parallel convex Edge；Step 2, processing of turning a millstone is carried out to the parallel flanges that step 1 is formed using skive, until reaching processing needs.
- The Compound Machining ceramic methods 2. abrasive water-jet grooving-skive as described in claim 1 is turned a millstone, feature exist In the machined parameters of the abrasive water-jet lathe are as follows:Grooving feed speed is 40-60mm/min；Pressure is 240-300Mpa；Range L is 2-6mm；Nozzle lateral distance, that is, thickness of flange is 2-4mm；Cutting obtained depth of groove is 6mm-12mm.
- The Compound Machining ceramic methods 3. abrasive water-jet grooving-skive as described in claim 1 is turned a millstone, feature exist In carrying out grooving processing using " reversed secondary cut " method in the step 1, i.e., be reversed after grooving along original route secondary Cutting.
- The Compound Machining ceramic methods 4. abrasive water-jet grooving-skive as described in claim 1 is turned a millstone, feature exist In the skive used in the step 2 is equipped with the column grinding wheel of handle for middle part, and the abrasive wheel end face and cylinder are coated with gold Hard rock particle, grinding wheel shank diameter 13mm, grinding wheel diameter 60mm, height 35mm, 100 mesh of grinding wheel abrasive grain mesh number, grinding wheel speed n= 5000r/min-7000r/min, speed of turning a millstone v=3mm/min-15mm/min, angle i.e. grinding wheel direction of feed of turning a millstone and flange it Between angle β be 0 ° -90 °.
- The Compound Machining ceramic methods 5. abrasive water-jet grooving-skive as described in claim 1 is turned a millstone, feature exist In the depth of turning a millstone in step 2 is 0.2mm-0.5mm bigger than the depth of flange that step 1 obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267333.5A CN109465711A (en) | 2018-10-29 | 2018-10-29 | Abrasive water-jet grooving-skive is turned a millstone Compound Machining ceramic methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267333.5A CN109465711A (en) | 2018-10-29 | 2018-10-29 | Abrasive water-jet grooving-skive is turned a millstone Compound Machining ceramic methods |
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| CN109465711A true CN109465711A (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811267333.5A Pending CN109465711A (en) | 2018-10-29 | 2018-10-29 | Abrasive water-jet grooving-skive is turned a millstone Compound Machining ceramic methods |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775563A (en) * | 2020-12-18 | 2021-05-11 | 成都中创光科科技有限公司 | Unidirectional four-time bidirectional eight-stage step cutting process for silicon carbide wafer |
| CN113103392A (en) * | 2019-12-24 | 2021-07-13 | 南京林业大学 | Method for performing composite processing on biomass material by adopting laser and abrasive jet |
| CN114505790A (en) * | 2022-01-26 | 2022-05-17 | 武汉大学 | High-efficiency processing method for large-size blind groove abrasive jet |
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2018
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| CN105081587A (en) * | 2015-09-21 | 2015-11-25 | 江南大学 | Combined multichannel ceramic cutting method through water jet laser |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103392A (en) * | 2019-12-24 | 2021-07-13 | 南京林业大学 | Method for performing composite processing on biomass material by adopting laser and abrasive jet |
| CN113103392B (en) * | 2019-12-24 | 2023-12-29 | 南京林业大学 | Method for carrying out composite processing on biomass material by adopting laser and abrasive jet |
| CN112775563A (en) * | 2020-12-18 | 2021-05-11 | 成都中创光科科技有限公司 | Unidirectional four-time bidirectional eight-stage step cutting process for silicon carbide wafer |
| CN112775563B (en) * | 2020-12-18 | 2023-05-05 | 西安晟光硅研半导体科技有限公司 | Unidirectional four-layer bidirectional eight-stage step cutting process for silicon carbide wafer |
| CN114505790A (en) * | 2022-01-26 | 2022-05-17 | 武汉大学 | High-efficiency processing method for large-size blind groove abrasive jet |
| CN114505790B (en) * | 2022-01-26 | 2022-11-01 | 武汉大学 | Large-size blind groove abrasive jet flow efficient machining method |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100072, Beijing, Fengtai District, 21 homes Du Du Hom Applicant after: Army Armored Academy Address before: 100072 The Academy of Armored Forces Engineering, Fengtai District, Dujia, Fengtai District, Beijing Applicant before: Army Armored Academy |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190315 |
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| RJ01 | Rejection of invention patent application after publication |