CN107160567A - A kind of fine needle-like graphite electrode processing method - Google Patents
A kind of fine needle-like graphite electrode processing method Download PDFInfo
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- CN107160567A CN107160567A CN201710536655.4A CN201710536655A CN107160567A CN 107160567 A CN107160567 A CN 107160567A CN 201710536655 A CN201710536655 A CN 201710536655A CN 107160567 A CN107160567 A CN 107160567A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B28D—WORKING STONE OR STONE-LIKE MATERIALS
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Abstract
The invention discloses a kind of fine needle-like graphite electrode processing method, the processing method is：S1, cube graphite material workpiece installed on the table, it is fixed；S2, select diamond-coated tools T3 carry out roughing；S3, finished from diamond-coated tools T5, obtain fine needle-like graphite electrode.Fine needle-like graphite electrode processing method of the present invention realizes the retrofit of graphite electrode, can process the graphite electrode for obtaining 0.15 ± 0.05mm of diameter.
Description
Technical field
The present invention relates to machining graphite field, specifically, the present invention relates to a kind of fine needle-like graphite electrode processing method.
Background technology
The cutter processed available for graphite electrode has high-speed steel tool, hard alloy cutter, cubic boron nitride cutting tool, ceramics
Cutter and diamond-coated tools, wherein, diamond-coated tools are most widely used in enterprise's graphite electrode processing.Patent
CN201010234411.9 discloses a kind of processing method of diamond film-coated tools to precise and fine graphite electrodes, its elder generation
Diamond film-coated tools are sharpened, a kind of optimum value of tool surface quality are obtained, according to diamond film coating layer knife
The cutting ability of tool, obtains the High-speed machining parameter of optimal graphite electrode, then carries out roughing using laminated type, coordinates centralization
Oil spout, reduction is burst apart, each unilateral to stay 0.2-0.25mm surpluses, then is finished, and removes unilateral surplus.The invention is effectively solved
Determined processing graphite electrode when cutter be easily lost, the problem of electrode easily collapses angle, process velocity is slow, but its processing technology is still full
The foot not processing of fine needle-like graphite electrode.
The content of the invention
Based on this, it is contemplated that overcoming the defect of prior art to be processed there is provided a kind of new fine needle-like graphite electrode
Method, the processing method can process the needle-like graphite electrode for obtaining 0.15 ± 0.05mm of diameter, gained graphite electrode outward appearance
Smoothly, it will not collapse broken or fracture.
Technical scheme is as follows：
A kind of fine needle-like graphite electrode processing method, comprises the following steps：
S1, by size it is（50~60mm）×（50~60mm）×（50~60mm）Cube graphite material workpiece be arranged on work
Make on platform, it is fixed；The particle diameter of graphite material is 8 μm~12 μm, and density is 1.77~1.88g/cm3；
S2, diamond-coated tools T3 is selected to carry out roughing, machined parameters are as follows：
Tool diameter：φ6mm；
Machining accuracy：0.02mm；
The speed of mainshaft：11000~15000rpm；
Feed rate：6000~10000mm/min；
The amount of feeding：Radially 3.9~4.5mm/r, axially 0.5~1.5mm/r；
Process time：20~30min；
Cutter parameters：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword；
S3, finished from diamond-coated tools T5, machined parameters are as follows：
Tool diameter：φ4mm；
Machining accuracy：0.005mm；
The speed of mainshaft：14000~18000rpm；
Feed rate：700~1300mm/min；
The amount of feeding：Radially 1.0~2.0mm/r, axially 0.13~0.20mm/r；
Process time：60~70min；
Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, the long 12mm of sword.
Inventor is found through experiments that, by selecting the cutter T3 of specific standard to carry out roughing, T5 is finished, and
Machined parameters are controlled, the fine needle-like graphite electrode for obtaining a diameter of 0.15 ± 0.05mm can be processed, precise fine is realized
The processing of graphite electrode.
In one of the embodiments, the step S2 is：Diamond-coated tools T3 is selected to carry out roughing, machined parameters
It is as follows：Tool diameter φ 6mm；Machining accuracy 0.02mm；Speed of mainshaft 12000rpm；Feed rate 8000mm/min；The amount of feeding：Footpath
To 4.2mm/r, axial 1.0mm/r；Process time 29min；Cutter parameters：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword.
In one of the embodiments, the step S3 is：Finished from diamond-coated tools T5, processing ginseng
Number is as follows：Tool diameter φ 4mm；Machining accuracy 0.005mm；Speed of mainshaft 15000rpm；Feed rate 1000mm/min；Feeding
Amount：Radial direction 1.5mm/r, axial 0.18mm/r；Process time：65min；Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, sword
Long 12mm.
In one of the embodiments, the step S1 is：It is by size（50~60mm）×（50~60mm）×（50~
60mm）Cube graphite material workpiece be fixed on graphite electrode special fixture, then by graphite material workpiece lathe work
Positioning in four sides point is carried out on platform to clamp.
The graphite electrode that fine needle-like graphite electrode processing method is obtained, the fine pin are stated the invention also discloses described
The size of shape graphite electrode is：φ 0.15 ± 0.05mm, high 15 ± 5mm.
Compared with prior art, the present invention has the advantages that：Diamond of the invention by selecting suitable types
Coated cutting tool, controls machined parameters, including the speed of mainshaft, feed rate, the amount of feeding, process time etc., has processed a diameter of
0.15 ± 0.05mm fine needle-like graphite electrode, gained graphite electrode outward appearance is smooth, will not collapse broken or fracture；It is of the present invention
Method realizes the retrofit of fine needle-like graphite electrode, and machining accuracy is high, and crudy is good.
Brief description of the drawings
Fig. 1 is the machining sketch chart of embodiment 1.
Fig. 2 is that embodiment 1 processes obtained fine needle-like graphite electrode.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.Following examples only express the present invention's
Embodiment, it describes more specific and detailed, but therefore can not be interpreted as the limitation to the scope of the claims of the present invention, in every case
The technical scheme obtained using the form of equivalent substitution or equivalent transformation, all should fall within the scope and spirit of the invention.
Graphite material used in following examples is that 8510 in western lattice, particle diameter is 10 μm, and density is 1.83g/cm3
Embodiment 1
A kind of fine needle-like graphite electrode processing method, step is as follows：
S1, as depicted in figs. 1 and 2, graphite is fixed on by size for 60mm × 60mm × 60mm cube graphite material workpiece
On electrode special fixture, then graphite material workpiece is subjected on platen positioning in four sides point clamped.
S2, diamond-coated tools T3 is selected to carry out roughing, machined parameters are as follows：Tool diameter：φ6mm；Machining accuracy：
0.02mm；The speed of mainshaft：12000rpm；Feed rate：8000mm/min；The amount of feeding：Radial direction 4.2mm/r, axial 1.0mm/r；Plus
Between man-hour：29min；Cutter parameters：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword.
S3, finished from diamond-coated tools T5, machined parameters are as follows：Tool diameter：φ4mm；Processing essence
Spend 0.005mm；Speed of mainshaft 15000rpm；Feed rate 1000mm/min；The amount of feeding：Radial direction 1.5mm/r, axial 0.18mm/r；
Process time：65min；Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, the long 12mm of sword.Obtained after processing a diameter of
0.15mm, the highly fine needle-like graphite electrode for 15mm, concrete shape are shown in Fig. 2.
Embodiment 2
A kind of fine needle-like graphite electrode processing method, step is as follows：
S1, size is fixed on graphite electrode special fixture for 60mm × 60mm × 60mm cube graphite material workpiece,
Graphite material workpiece is carried out to positioning in four sides point on platen again to clamp.
S2, diamond-coated tools T3 is selected to carry out roughing, machined parameters are as follows：Tool diameter：φ6mm；
Machining accuracy：0.02mm；The speed of mainshaft：11000rpm；Feed rate：6000mm/min；The amount of feeding：Radial direction 3.9mm/r, axle
To 0.5mm/r；Process time：30min；Cutter parameters：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword.
S3, finished from diamond-coated tools T5, machined parameters are as follows：Tool diameter：φ4mm；Processing essence
Spend 0.005mm；Speed of mainshaft 18000rpm；Feed rate 1300mm/min；The amount of feeding：Radial direction 2.0mm, axial 0.20mm；Processing
Time：60min；Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, the long 12mm of sword.A diameter of 0.20mm is obtained after processing, it is high
Spend the fine needle-like graphite electrode for 20mm.
Embodiment 3
A kind of fine needle-like graphite electrode processing method, step is as follows：
S1, size is fixed on graphite electrode special fixture for 60mm × 60mm × 60mm cube graphite material workpiece,
Graphite material workpiece is carried out to positioning in four sides point on platen again to clamp.
S2, diamond-coated tools T3 is selected to carry out roughing, machined parameters are as follows：Tool diameter：φ6mm；
Machining accuracy：0.02mm；The speed of mainshaft：15000rpm；Feed rate：1000mm/min；The amount of feeding：Radial direction 4.5mm/r, axle
To 1.5mm/r；Process time：20min；Cutter parameters：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword.
S3, finished from diamond-coated tools T5, machined parameters are as follows：Tool diameter：φ4mm；Processing essence
Spend 0.005mm；Speed of mainshaft 14000rpm；Feed rate 700mm/min；The amount of feeding：Radial direction 1.0mm/r, axial 0.13mm/r；Plus
Between man-hour：70min；Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, the long 12mm of sword.A diameter of 0.10mm is obtained after processing,
Highly it is 15mm fine needle-like graphite electrode.
Comparative example 1
From in the western lattice of graphite material 8710（3 μm of particle diameter, density 1.88g/cm3）Graphite material in alternative embodiment 1 is carried out
Processing, its processing method is same as Example 1.Needle-like graphite electrode fractures in process.
Comparative example 2
Cube graphite material workpiece is processed according to processing method described in embodiment 1, difference is that step S2 selects diamond
Coated cutting tool T21 carries out roughing, and machined parameters are：Machined parameters are as follows：Tool diameter：φ3mm；Machining accuracy：0.02mm；
The speed of mainshaft：10000rpm；Feed rate：8000mm/min；The amount of feeding：Radial direction 3.5mm/r, axial 1.0mm/r；Process time：
29min；Cutter parameters：Knife overall length 75mm, fills the long 30mm of knife, the long 15mm of sword.Needle-like graphite electrode fractures in process.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic in example is applied all to be described, for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention,
All it is considered to be the scope of this specification record.
Claims (5)
1. a kind of fine needle-like graphite electrode processing method, it is characterised in that comprise the following steps：
S1, by size it is（50~60mm）×（50~60mm）×（50~60mm）Cube graphite material workpiece be arranged on work
Make on platform, it is fixed；The particle diameter of graphite material is 6 μm~12 μm, and density is 1.77~1.88g/cm3；
S2, diamond-coated tools T3 is selected to carry out roughing, machined parameters are as follows：
Tool diameter：φ6mm；
Machining accuracy：0.02mm；
The speed of mainshaft：11000~15000rpm；
Feed rate：6000~10000mm/min；
The amount of feeding：Radially 3.9~4.5mm/r, axially 0.5~1.5mm/r；
Process time：20~30min；
Cutter parameters：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword；
S3, finished from diamond-coated tools T5, machined parameters are as follows：
Tool diameter：φ4mm；
Machining accuracy：0.005mm；
The speed of mainshaft：14000~18000rpm；
Feed rate：700~1300mm/min；
The amount of feeding：Radially 1.0~2.0mm/r, axially 0.13~0.20mm/r；
Process time：60~70min；
Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, the long 12mm of sword.
2. fine needle-like graphite electrode processing method according to claim 1, it is characterised in that the step S2 is：Choosing gold
Hard rock coated cutting tool T3 carries out roughing, and machined parameters are as follows：Tool diameter φ 6mm；Machining accuracy 0.02mm；The speed of mainshaft
12000rpm；Feed rate 8000mm/min；The amount of feeding：Radial direction 4.2mm/r, axial 1.0mm/r；Process time 29min；Cutter is joined
Number：Knife overall length 75mm, fills the long 45mm of knife, the long 18mm of sword.
3. fine needle-like graphite electrode processing method according to claim 2, it is characterised in that the step S3 is：From
Diamond-coated tools T5 is finished, and machined parameters are as follows：Tool diameter φ 4mm；
Machining accuracy 0.005mm；Speed of mainshaft 15000rpm；Feed rate 1000mm/min；The amount of feeding：Radial direction 1.5mm/r, axially
0.18mm/r；Process time：65min；Cutter parameters：The long 75mm of total knife, fills the long 35mm of knife, the long 12mm of sword.
4. fine needle-like graphite electrode processing method according to claim 3, it is characterised in that the step S1 is：By chi
It is very little to be（50~60mm）×（50~60mm）×（50~60mm）Cube graphite material workpiece to be fixed on graphite electrode special
On fixture, then graphite material workpiece is subjected on platen positioning in four sides point clamped.
5. the graphite electrode that fine needle-like graphite electrode processing method is obtained is stated described in claim 1-4 any claims, its
It is characterised by, the size of the fine needle-like graphite electrode is：φ 0.15 ± 0.05mm, high 15 ± 5mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111790958A (en) * | 2020-07-03 | 2020-10-20 | 途泰精密模具(苏州)有限公司 | Machining device and method for machining superfine holes by adopting graphite fine needles through electric discharge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111790958A (en) * | 2020-07-03 | 2020-10-20 | 途泰精密模具(苏州)有限公司 | Machining device and method for machining superfine holes by adopting graphite fine needles through electric discharge |
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Effective date of registration: 20180409 Address after: 518118 Guangdong city of Shenzhen province Pingshan Pingshan Jinlong Avenue on the west side Applicant after: Shenzhen Changhong Technology Co., Ltd. Applicant after: Guangdong University of Technology Address before: 510006 Dongfeng Road, Guangzhou, Guangdong, No. 729, No. Applicant before: Guangdong University of Technology |
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Application publication date: 20170915 |