CN106270582A - A kind of cutter forming chip water conservancy diversion capillary tube and application thereof, processing method - Google Patents
A kind of cutter forming chip water conservancy diversion capillary tube and application thereof, processing method Download PDFInfo
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- CN106270582A CN106270582A CN201610754709.XA CN201610754709A CN106270582A CN 106270582 A CN106270582 A CN 106270582A CN 201610754709 A CN201610754709 A CN 201610754709A CN 106270582 A CN106270582 A CN 106270582A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/08—Rake or top surfaces
- B23B2200/081—Rake or top surfaces with projections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/08—Rake or top surfaces
- B23B2200/086—Rake or top surfaces with one or more grooves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses a kind of cutter forming chip water conservancy diversion capillary tube and application thereof, processing method, relate to a kind of cutter actively forming water conservancy diversion capillary tube bottom chip, belong to mechanical manufacturing field.The present invention tool surface (1) in chip-flowing side arranges texture array, and described texture array is constituted by micro-bulge (6) array and very low power (2) array are compound, and described micro-bulge (6) array and very low power (2) array are sequentially arranged along chip flow direction.When the present invention uses wet machining mode, the direction alignment capillary tube or very low power direction poured into a mould or spray.Friction between cutter of the present invention and chip reduces, and cutting fluid arrives bond regions and sliding area, reduces cutting force and heat in metal cutting, extends cutter life.
Description
Technical field
The present invention relates to a kind of cutter actively forming water conservancy diversion capillary tube bottom chip and application thereof, processing method, belong to
In mechanical manufacturing field.
Background technology
During metal cutting process, chip produces severe friction with rake face, and heat in metal cutting accumulates near point of a knife, causes cutter
Local temperature steeply rises, and cooling-lubricant is hardly formed fluid lubrication, arrives near rake face or point of a knife, so that cutting edge
Intensity reduces, and causes tipping；Meanwhile, in high-ductility metal material working angles, " viscous cutter " forms built-up edge, affects workpiece table
Face quality and dimensional accuracy.Therefore, tool surface abrasion concerns cutting quality and cutter life with adhesion.
Merchant in 1958 et al. (The physical chemistry of cutting fluid action) uses
Microscope is found that cutter-bits contact area exists the capillary tube that diameter is about 0.2mm, and the proposition for capillary theory provides reality
Test foundation；1977, Williams et al. (The Action of Lubricants in Metal Cutting) proposed length
The cuboid capillary model of × wide × height=l × m a × a, and think that liquid enters liquid phase infiltration before this after capillary tube, then
It is that gas phase is penetrated into or gloomy stream is exerted in formation；At home, Han Rong et al. (the capillary model research of cutter-bits contact area friction, lubrication)
Proposing a kind of new capillary model, and it has been carried out dynamic analysis, research cooling lubricant enters cutter-bits contact area
Process and mechanism of action, test result indicate that, is " capillary tube " domain of the existence in the slip region of cutter-bits contact, these region cutter-bits
Relative motion produce pump-absorb action so that cooling lubricant penetrate into.Above-mentioned " capillary tube " be formed as tool contact
Face is coarse to cause, and " capillary tube " of this formation is mixed and disorderly, its width degree of depth can not well control, and cooling-lubricant can not be
Limits penetrate near cutter-bits bond regions and sliding area or blade, formed lubricant film.
Summary of the invention
For the problems referred to above, the present invention processes micro-bulge micro groove at cutter rake face, and formation micro-bulge, micro groove are multiple
Close texture array, in working angles bottom chip formed, cutter-bits bond regions and sliding area or blade is formed about uniformly,
Stable lubricant film, under wet cutting operating mode, the friction between cutter and chip reduces, and cutting fluid arrives bond regions and slip
District, reduces cutting force and heat in metal cutting, extends cutter life.
The technical scheme is that, the tool surface in chip-flowing side arranges texture array, described texture array
Being constituted by microprotrusion array and micro groove array are compound, described microprotrusion array and micro groove array are along chip flow direction successively cloth
Put；Described texture features array is equidistantly distributed by 3-10 group micro-bulge pattern array and constitutes, often group micro-bulge pattern array by
1-5 row micro-bulge pattern close-packed arrays is constituted, and each column micro-bulge pattern is equidistantly distributed by 6-12 micro-bulge pattern and constitutes；Institute
State micro groove array to be made up of 3-10 row micro groove.
Described micro-bulge height 10-200 micron, micro-bulge diameter 20-300 micron.The width 30-150 of described micro groove
Micron, degree of depth 10-200 micron, micro groove spacing 50-300 micron.
Described microprotrusion array distance blade 200 microns-500 microns, described micro groove array distance microprotrusion array 200
Micron-500 microns.Adjacent described often group micro-bulge pattern array pitch 300-1000 micron, the adjacent described often group dimpling bodily form
Looks array pitch 300-1000 micron, adjacent two arrange described micro-bulge pattern is smaller than equal to this two row pattern radius sum,
Described micro-bulge pattern spacing is micro-bulge pattern center position；The adjacent micro-bulge spacing of described each column micro-bulge pattern
For 50-200 micron.
The column direction of described micro-bulge pattern is vertical with main cutting edge direction or tilts certain angle.The side of described micro groove
To parallel with chip direction or vertical.
The purposes of cutter of the present invention is, when using wet machining mode, wet machining mode is cast-type or spraying
Formula；The direction alignment capillary tube of cast or spraying or micro groove direction；When the direction of cast or spraying is directed at micro groove direction, cut
Cut the cutting fluid granule of liquid or atomization and rapidly enter as in groove, and be stored in as in groove, formed bottom chip capillary tube with
Tool surface produces pumping power makes cutting fluid or cutting fluid granule in groove arrive texture array along capillary tube, formed stably,
Uniform lubricant film.When described wet cutting way uses atomizing, cooling cutting fluid particle size≤2 micron after atomization.
When using cast-type, owing to the amount of feeding is relatively big, described micro-bulge (6) array is tight by 2-4 list row micro-bulge pattern
Close it is arranged to make up, described micro-bulge (6) highly 100-200 micron, micro-bulge (6) diameter 100-300 micron, is formed bottom chip
Capillary width 200-800 micron, degree of depth 100-200 micron.
The processing method implementing cutter of the present invention, concretely comprises the following steps, step A, and tool surface carries out pretreatment；To on cutter
Treat that texture machined surface is processed by shot blasting so that it is roughness Ra is surveyed less than 0.3 micron in surface；Step B, to metal cutting tool
Work surface carries out Laser Processing process, processes micro-bulge pattern array and micro-cannelure array；The laser of described micro-bulge array
Machined parameters is: wavelength is 532nm or 1064nm, electric current 1-20A, pulse number 1-5 time, and repetition rate is 1-10000Hz, auxiliary
Helping gas is nitrogen, and nitrogen pressure is 0-1MPa；The laser processing parameter of described micro groove is: wavelength is 532nm or 1064nm,
Electric current 1-20A, pulse number 1-7 time, repetition rate 1-10000Hz, auxiliary gas is nitrogen, nitrogen pressure 0-1MPa, scanning
Speed 5-20mm/s, auxiliary gas is nitrogen, nitrogen pressure 0.2MPa, scanning speed 10mm/s；Step C, removes warp after slag
Ultrasonic cleaning.
Described cutter, during cutting workpiece, forms chip, and chip first passes through microprotrusion array, and plastotype shape occurs
Becoming, form the controlled capillary tube of very low power shape bottom chip, the inside cavity constituted with tool surface is vacuum state, produces
Pumping power, will cooling cutting fluid or cutting particles along above-mentioned capillary suction cutter and chip contact interface, play cooling profit
Sliding effect, reduces cutting force and heat in metal cutting, improves workpiece quality, extends cutter life.
Described micro groove has storage coolant cutting fluid or the effect of cutting particles；Capillary tube and cutter is formed bottom chip
Tool surface produces pumping power makes cutting fluid or cutting fluid granule in groove continual attached along capillary tube arrival main cutting edge
Near or sliding area and bond regions, form stable, uniform lubricant film.
Described channel-shaped capillary tube has different optimum sizes under different cutting operating modes, can pass through tool surface texture
The arrangement of array pattern and size realize controlling.
Acquisition tool surface is combined pattern array and mainly can pass through laser processing technology, spark erosion technique, photoetching skill
One or more in art, micro-grinding technique.
Described cutter, when cutting soft material, can duplicate texture array sizes completely, form optimal hair bottom chip
Tubule, thus realize the controlled of capillary size；When cutting hard material, chip is not susceptible to plasticity shape through texture array
Become, texture array arrangement need to be changed and size makes to form optimal capillary tube bottom chip.
Described texture cutter forms chip when cutting workpiece, forms capillary tube, change micro-bulge pattern bottom chip
Micro-bulge height in the arrangement of array and pattern array and width, make actively to form controlled water conservancy diversion capillary tube bottom chip,
Cutting fluid, by the pump-absorb action between cutter-bits, enters cutter-bits contact surface along water conservancy diversion capillary tube；With conventional wet working angles phase
Ratio, cooling lubricant can arrive near cutter-bits bond regions and sliding area or blade, is stored in tool surface texture array, shape
Uniformly, stable lubricant film, reduce cutting force and heat in metal cutting, extend cutter life.
The beneficial effects of the present invention is: 1, by toolsmith being made surface texture process, form surface microprotrusion array
With the compound texture array of micro groove array, by changing the micro-bulge height in the arrangement of microprotrusion array and pattern array
The controlled of capillary width and the degree of depth is realized with width；2, the present invention is adapted to various wet cutting way, and cutting fluid can be
Near the arrival main cutting edge of limits or sliding area and bond regions, reduce cutting force and heat in metal cutting；3, micro-in cutter of the present invention
Groove array has the function storing cooling cutting fluid, and the cutting fluid of storage is by the pump-absorb action between cutter-bits, continual
Enter cutter-bits contact surface along water conservancy diversion capillary tube, form stable, uniform lubricant film, reduce cutting force and heat in metal cutting；4, originally
Invention is applicable to different cutter material: such as high-speed steel, hard alloy, sintex, coated cutting tool and PCBN cutter.
Accompanying drawing explanation
Fig. 1 is that tool surface is combined texture array schematic diagram.
Fig. 2 is the schematic diagram of the capillary tube bottom micro-bulge chip.
In figure: 1, tool surface；2, very low power；3, cutting edge；4, each column adjacent micro-bulge pattern spacing；5, often organize pattern
Array pitch；6, micro-bulge；7, cutter；8, capillary tube；9, chip；10, workpiece.
Detailed description of the invention
Embodiment that of the present invention two of which optimal be given below:
Embodiment 1
In the present embodiment, tool selection high-speed steel tool, cutting material is aluminium alloy, and cutting way is cast-type.
Present embodiment first-selection diode pumped YAG lasers, by carrying out laser to high-speed steel tool material work surface
Processed, uses cast-type cutting way, owing to the cast-type cutting way amount of feeding is bigger, needs active bottom chip
Form wider deeper capillary tube；Owing to cutting soft aluminum alloy materials, texture array sizes can be duplicated bottom chip completely,
Form optimal capillary tube.
The enforcement of the technology of the present invention feature comprises the following steps:
Step A, tool surface carries out pretreatment；To treating on cutter that texture machined surface is processed by shot blasting so that it is surface is surveyed coarse
Degree Ra is less than 0.3 micron.
Step B, carries out Laser Processing process to metal cutting tool work surface, processes micro-bulge pattern array, distance
Cutting edge 300 microns；Micro groove array is positioned at 300 microns of microprotrusion array rear portion, with chip direction vertical configuration very low power battle array
Row.
Micro-bulge pattern array is made up of 4 row micro-bulge patterns, and each column micro-bulge closely connects together；Each column is micro-by 6
Convex body pattern is equidistantly distributed composition, and column direction is vertical with main cutting edge direction, and each column adjacent micro-bulge pattern spacing is 100 micro-
Rice；Micro groove array is made up of 5 groups of very low power, and micro groove uses vertical with chip direction.
The height of micro-bulge is 100 microns, a diameter of 100 microns；Micro groove width is 100 microns, and the degree of depth is 120 micro-
Rice, spacing is 100 microns.
When cutting, the controlled capillary width that chip is formed through microprotrusion array up to 400 microns, the degree of depth up to
100 microns.
The concrete laser processing parameter of micro-bulge is: wavelength is 532nm, electric current 18A, pulse number 3 times, and repetition rate is
5000Hz, auxiliary gas is nitrogen, and nitrogen pressure is 0.1MPa；The concrete laser processing parameter of micro groove is: wavelength is 532nm,
Electric current 17A, pulse number 3 times, repetition rate 2000Hz, auxiliary gas is nitrogen, nitrogen pressure 0.2MPa, scanning speed
10mm/s；Remove slag, after ultrasonic cleaning, utilize VYKO pattern instrument to record micro-bulge and micro groove size and pattern.
Step C, when machining, uses cast-type cutting way, and the direction of cast is along tool surface micro groove
Direction, flow is 40L/min, and pressure is 0.2MPa, and nozzle diameter is 2mm.
In texture array described in the present embodiment, each column micro-bulge pattern direction is not limited to vertical with main cutting edge direction,
Can be angled, thus reach to form optimal capillary tube.
Embodiment 2
In the present embodiment, cutter is PCBN cutter, and cutting material is rigid titanium alloy, and cutting way is atomizing.
Present embodiment first-selection optical fiber laser, by PCBN cutter material work surface is carried out Laser Processing process, by
In cutting rigid titanium alloy material, texture array sizes bottom chip, can not be duplicated completely, the arrangement of texture array and chi need to be controlled
Very little so that bottom chip, to form optimal capillary tube.
The enforcement of the technology of the present invention feature comprises the following steps:
Step A, tool surface carries out pretreatment；To treating on cutter that texture machined surface is processed by shot blasting so that it is surface is surveyed coarse
Degree Ra is less than 0.3 micron.
Step B, carries out Laser Processing process to PCBN cutter cutter work surface, processes micro-bulge pattern array, distance
Cutting edge 200 microns；Micro groove array is positioned at 200 microns of microprotrusion array rear portion, with chip direction vertical configuration micro groove battle array
Row.
Micro-bulge pattern array is made up of 2 row micro-bulge patterns；Each column is equidistantly distributed by 6 micro-bulge patterns and constitutes,
Column direction is vertical with main cutting edge direction, and each column adjacent micro-bulge pattern spacing is 100 microns；Micro groove array is by 8 groups of nicks
Groove is constituted, and micro groove uses vertical with chip direction.
The height of micro-bulge is 60 microns, a diameter of 80 microns；Micro groove width is 100 microns, and the degree of depth is 100 microns,
Spacing is 80 microns.
When cutting, the controlled capillary width that chip is formed through microprotrusion array is up to 80 microns, and the degree of depth is up to 60
Micron.
The concrete laser processing parameter of micro-bulge is: wavelength is 532nm, electric current 16A, pulse number 3 times, and repetition rate is
3000Hz, auxiliary gas is nitrogen, and nitrogen pressure is 0.1MPa；The concrete laser processing parameter of micro groove is: wavelength is 532nm,
Electric current 14A, pulse number 3 times, repetition rate 2000Hz, auxiliary gas is nitrogen, nitrogen pressure 0.2MPa, scanning speed
10mm/s；Remove slag, after ultrasonic cleaning, utilize VYKO pattern instrument to record micro-bulge and micro groove size and pattern.
Step C, when machining, uses atomizing cutting way, and the direction of spraying is along capillary tube bottom chip
Direction, after atomization, the lubricating fluid particle size of cooling is about 1 micron, and flow is 3L/min, and pressure is 0.3MPa, and nozzle diameter is
1mm。
In texture array described in the present embodiment, each column micro-bulge pattern direction is not limited to vertical with main cutting edge direction,
Can be angled, thus reach to form optimal capillary tube.
Claims (11)
1. the cutter forming chip water conservancy diversion capillary tube, it is characterised in that the tool surface (1) in chip-flowing side is arranged
Texture array, described texture array is constituted by micro-bulge (6) array and micro groove (2) array are compound, described micro-bulge (6) array
It is sequentially arranged along chip flow direction with micro groove (2) array；Described texture features array is by 3-10 group micro-bulge (6) pattern array
Equidistantly it is distributed composition, often organizes micro-bulge (6) pattern array and be arranged to make up by 1-5 row micro-bulge (6) pattern, each column micro-bulge
(6) pattern is equidistantly distributed by 6-12 micro-bulge pattern and constitutes；Described micro groove (2) array is by 3-10 row micro groove (2) structure
Become.
Cutter the most according to claim 1, it is characterised in that described micro-bulge (6) highly 10-200 micron, micro-bulge
(6) diameter 20-300 micron.
Cutter the most according to claim 1 and 2, it is characterised in that described micro groove (2) width 30-150 micron, the degree of depth
10-200 micron, micro groove spacing 50-300 micron.
Cutter the most according to claim 3, it is characterised in that described micro-bulge (6) array distance blade 200 micron-500
Micron, described micro groove (2) array distance microprotrusion array 200 microns-500 microns.
Cutter the most according to claim 3, it is characterised in that adjacent described often organize micro-bulge (6) pattern array pitch (5)
300-1000 micron, adjacent two row described micro-bulge (6) patterns are smaller than equal to this two row pattern radius sum, described dimpling
Body (6) pattern spacing is the spacing of micro-bulge pattern center；The adjacent micro-bulge of described each column micro-bulge (6) pattern
(6) spacing is 50-200 micron.
Cutter the most according to claim 3, it is characterised in that the column direction of described micro-bulge (6) pattern and main cutting edge
Direction is vertical.
Cutter the most according to claim 3, it is characterised in that the direction of described micro groove (2) parallel with chip direction or
Vertically.
8. according to the purposes of any one cutter in claim 17, it is characterised in that when using wet machining mode, institute
Stating wet machining mode is cast-type or atomizing；The direction alignment capillary tube of cast or spraying or micro groove direction；Cast
Or spraying direction alignment micro groove direction time, the cutting fluid granule of cutting fluid or atomization rapidly enters in micro groove, and stores
In micro groove, form capillary tube bottom chip and make cutting fluid or cutting fluid granule edge in groove with tool surface generation pumping power
Capillary tube and arrive texture array, form stable, uniform lubricant film.
Purposes the most according to claim 8, it is characterised in that when using cast-type, owing to the amount of feeding is relatively big, described dimpling
Body (6) array is made up of 2-4 list row micro-bulge pattern close-packed arrays, described micro-bulge (6) highly 100-200 micron, dimpling
Body (6) diameter 100-300 micron, forms capillary width 200-800 micron, degree of depth 100-200 micron bottom chip.
Purposes the most according to claim 8 or claim 9, it is characterised in that: when described wet cutting way uses atomizing, atomization
After cooling cutting fluid particle size≤2 micron.
11. implement the processing method of any one cutter in claim 17, it is characterised in that concretely comprise the following steps,
Step A, tool surface carries out pretreatment；To treating on cutter that texture machined surface is processed by shot blasting so that it is surface is surveyed coarse
Degree Ra is less than 0.3 micron；
Step B, carries out Laser Processing process to metal cutting tool work surface, processes micro-bulge (6) pattern array and nick
Groove (2) array；
The laser processing parameter of described micro-bulge (6) array is: wavelength is 532nm or 1064nm, electric current 1-20A, pulse number
1-5 time, repetition rate is 1-10000Hz, and auxiliary gas is nitrogen, and nitrogen pressure is 0-1MPa；The laser of described micro groove (2)
Machined parameters is: wavelength is 532nm or 1064nm, electric current 1-20A, pulse number 1-7 time, repetition rate 1-10000Hz, auxiliary
Gas is nitrogen, nitrogen pressure 0-1MPa, scanning speed 5-20mm/s；
Step C, through ultrasonic cleaning after removing slag.
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| CN201610754709.XA CN106270582A (en) | 2016-08-30 | 2016-08-30 | A kind of cutter forming chip water conservancy diversion capillary tube and application thereof, processing method |
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Cited By (9)
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| CN107138751A (en) * | 2017-06-02 | 2017-09-08 | 安徽大学 | Easily-introduced bionic configuration texture, cutter and design method |
| CN107584144A (en) * | 2017-08-31 | 2018-01-16 | 江苏大学 | A kind of Magneted tool and processing method and application method, cutting fluid and preparation method |
| CN108237236A (en) * | 2018-03-21 | 2018-07-03 | 济南大学 | Special-shaped texturing cutting tool and preparation method thereof |
| CN108856753A (en) * | 2018-08-22 | 2018-11-23 | 华南理工大学 | A kind of micro- texture cutter and its processing method and application based on silizin institutional framework |
| CN110091213A (en) * | 2019-05-27 | 2019-08-06 | 南京航空航天大学 | The diamond-coated tools with micro-structure refrigerating function suitable for titanic alloy machining |
| CN110181078A (en) * | 2019-05-17 | 2019-08-30 | 东南大学 | A kind of bionical texture and coating synergistic effect antifriction cutter and its design method |
| CN110732693A (en) * | 2019-09-23 | 2020-01-31 | 江苏大学 | cross-scale multi-morphology composite texture cutter |
| CN113579481A (en) * | 2021-07-30 | 2021-11-02 | 江苏大学 | Composite wetting cutter and preparation method thereof |
| WO2023216379A1 (en) * | 2022-05-12 | 2023-11-16 | 苏州大学 | System and method for assisting cutting fluid in permeating into cutting area |
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| CN107138751A (en) * | 2017-06-02 | 2017-09-08 | 安徽大学 | Easily-introduced bionic configuration texture, cutter and design method |
| CN107584144A (en) * | 2017-08-31 | 2018-01-16 | 江苏大学 | A kind of Magneted tool and processing method and application method, cutting fluid and preparation method |
| CN108237236A (en) * | 2018-03-21 | 2018-07-03 | 济南大学 | Special-shaped texturing cutting tool and preparation method thereof |
| WO2020037759A1 (en) * | 2018-08-22 | 2020-02-27 | 华南理工大学 | Micro-textured cutter based on silicon brass structure and processing method and application thereof |
| CN108856753A (en) * | 2018-08-22 | 2018-11-23 | 华南理工大学 | A kind of micro- texture cutter and its processing method and application based on silizin institutional framework |
| CN108856753B (en) * | 2018-08-22 | 2023-12-22 | 华南理工大学 | Micro-texture cutter based on silicon brass tissue structure and processing method and application thereof |
| CN110181078A (en) * | 2019-05-17 | 2019-08-30 | 东南大学 | A kind of bionical texture and coating synergistic effect antifriction cutter and its design method |
| CN110091213B (en) * | 2019-05-27 | 2021-04-27 | 南京航空航天大学 | Diamond coating cutter with microstructure cooling function |
| CN110091213A (en) * | 2019-05-27 | 2019-08-06 | 南京航空航天大学 | The diamond-coated tools with micro-structure refrigerating function suitable for titanic alloy machining |
| CN110732693A (en) * | 2019-09-23 | 2020-01-31 | 江苏大学 | cross-scale multi-morphology composite texture cutter |
| CN110732693B (en) * | 2019-09-23 | 2020-11-03 | 江苏大学 | Cross-scale multi-morphology composite texture cutter |
| CN113579481A (en) * | 2021-07-30 | 2021-11-02 | 江苏大学 | Composite wetting cutter and preparation method thereof |
| WO2023216379A1 (en) * | 2022-05-12 | 2023-11-16 | 苏州大学 | System and method for assisting cutting fluid in permeating into cutting area |
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