CN107756138A - Cutting tool state online test method and equipment - Google Patents
Cutting tool state online test method and equipment Download PDFInfo
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- CN107756138A CN107756138A CN201610683263.6A CN201610683263A CN107756138A CN 107756138 A CN107756138 A CN 107756138A CN 201610683263 A CN201610683263 A CN 201610683263A CN 107756138 A CN107756138 A CN 107756138A
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- cutting tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of cutting tool state online test method, for detecting the state of cutting tool, comprising step, extraction step and judgment step is captured, in capturing step, while cutting tool machining part, captures the original sound pressure signal of workpiece；In extraction step, detection sound pressure signal is extracted with predetermined frequency range for original sound pressure signal, the frequency range covers at least one natural frequency of workpiece, in judgment step, the characteristic value of sound pressure signal will be detected compared with detecting a reference value pair, and according to comparison result judge cutting tool deterioration whether.The present invention simultaneously provides a kind of cutting tool state online detection instrument for performing the above method.
Description
Technical field
The present invention relates to a kind of cutting tool condition detection method and equipment, more particularly to a kind of accurate cutting tool
State online test method and equipment.
Background technology
In metal cutting, the state of cutting tool is to influence the chief of product quality and production cost, when
Cutting tool state bad (such as abrasion, edge of a knife rupture) then needs to change cutting tool.However, changing cutting tool too early can make
Into the waste in cost, the bad missing of product can then be caused by just being changed when cutting tool state is seriously bad.Therefore, accurately
Ground judge what should when to change cutting tool be important problem.
Generally, the detection method of cutting tool state is divided into two kinds of on-line checking and off line detection, and off line detection refers to cutting
Tool in Cutting to a certain extent after, remove cutting tool observation abrasion or breakage situation.However, off line detection must be in cutting
Performed when cutter decommissions, that is, production line will be stopped by representing, therefore widely available can not still be used in factory, and such a inspection
Survey method also can not judge whether cutting tool is damaged in real time.Furthermore the shape of tool used now is complex, every suit
The Parameter Conditions of cutting tool are all different, and therefore, it is difficult to be implemented on detection cutting tool of different shapes.
In the working angles of cutting tool, record cutting tool board shakes the mode of another traditional on-line checking
Move and push back the situation of cutting tool.But noise of this vibration with substantial amounts of irrelevant cutting tool state, such as motor
Vibration, cutting tool each component between rotation, friction noise, and the vibration of cutting tool board may not also be relevant to cutting
The situation of cutter, therefore accuracy of measurement is not high.In addition, identical with foregoing off line detection, the shape of tool used now compared with
For complexity, the Parameter Conditions of every suit cutting tool are all different, and therefore, it is difficult to be implemented on detection cutting tool of different shapes.
The content of the invention
Therefore, to solve the above problems, the purpose of the present invention is examined online in a kind of accurately cutting tool state of offer
Survey method and apparatus.
Technological means provides a kind of cutting tool state and examined online used by the problem of the prior art of the invention for solution
Survey method, for detecting the state of a cutting tool, comprise the steps of：Step is captured, using acoustic pressure acquisition mechanism, is cut at this
While cutting knife tool machining part, the original sound pressure signal of the workpiece is captured；Extraction step, for the original sound pressure signal
Detection sound pressure signal is extracted with predetermined frequency range, the wherein frequency range covers at least one frequency naturally of the workpiece
Rate；And judgment step, by the characteristic value of the detection sound pressure signal compared with detecting a reference value pair, and sentenced according to the comparison result
Whether is the deterioration of the disconnected cutting tool.
A kind of cutting tool state online test method is provided in one embodiment of this invention, in the judgment step it
Before, in addition to a reference value establishment step：While the cutting tool cutting test workpiece, acquirement is relevant to test processing
The detection sound pressure signal of part, and the detection a reference value is determined according to the characteristic value of the detection sound pressure signal of the test workpiece.
A kind of cutting tool state online test method is provided in one embodiment of this invention, establishes and walks in a reference value
In rapid, the detection sound pressure signal of a plurality of test workpieces is obtained, and with statistical according to a plurality of test workpieces
The characteristic value of detection sound pressure signal determine the detection a reference value.
A kind of cutting tool state online test method is provided in one embodiment of this invention, establishes and walks in a reference value
In rapid, being captured and being carried every a predetermined interval time during the cutting tool cuts the test workpiece
Take, and obtain the detection sound pressure signal of a plurality of test workpieces.
A kind of cutting tool state online test method is provided in one embodiment of this invention, the detection a reference value according to
The acoustic pressure standard deviation of the characteristic value of the detection sound pressure signal of a plurality of test workpieces is determined.
A kind of cutting tool state online test method is provided in one embodiment of this invention, establishes and walks in a reference value
In rapid, the detection acoustic pressure using the preceding detection sound pressure signal being once relevant to acquired by the workpiece as the new test workpiece
Signal, and update the detection a reference value when each detection.
A kind of cutting tool state online test method is provided in one embodiment of this invention, in the acquisition step, mistake
Noise signals are filtered to capture the original sound pressure signal of the workpiece.
Technological means provides a kind of cutting tool state and examined online used by the problem of the prior art of the invention for solution
Measurement equipment, for detecting the state of a cutting tool, comprising：Capture device, including acoustic pressure acquisition mechanism, captured using the acoustic pressure
Mechanism, while the cutting tool machining part, capture the original sound pressure signal of the workpiece；Extraction element, it is connected to
The capture device, it is configured and detection sound pressure signal is extracted with predetermined frequency range for the original sound pressure signal, wherein
The frequency range covers at least one natural frequency of the workpiece；And degradation determination device, the extraction element is connected to, is passed through
Set by the characteristic value of the detection sound pressure signal compared with detecting a reference value pair, and the bite is judged according to the comparison result
Whether is the deterioration state of tool.
A kind of cutting tool state online detection instrument is provided in one embodiment of this invention, in addition to a reference value is established
Device, is connected to the degradation determination device, it is configured and while the cutting tool cutting test workpiece, acquirement is relevant to
The detection sound pressure signal of the test workpiece, and the detection benchmark is determined according to the detection sound pressure signal of the test workpiece
Value, wherein a reference value set up mechanism are configured and obtain the detection sound pressure signal of a plurality of test workpieces, and with statistics
Mode determines the detection a reference value according to the detection sound pressure signal of a plurality of test workpieces, and the wherein a reference value establishes machine
Structure being captured and being extracted every a predetermined interval time during the cutting tool cuts the test workpiece, and
The detection sound pressure signal of a plurality of test workpieces is obtained, wherein the detection a reference value is according to a plurality of test workpieces
The acoustic pressure standard deviation for detecting the characteristic value of sound pressure signal is determined.
A kind of cutting tool state online detection instrument, in addition to blimp are provided in one embodiment of this invention, if
The periphery of the acoustic pressure acquisition mechanism is placed in, to isolate noise.
Via the technology used in the present invention means, on-line checking cutting tool state can be produced in real time without stopping
Line, also it is not required to make parameter adjustment according to the cutting tool of different platform, it is most important that, judge the whether abnormal standard of cutting tool
Exactness significantly increases.
Specific embodiment of the present invention, it will be further described by following embodiment and accompanying drawing.
Brief description of the drawings
Fig. 1 is the flow chart for showing cutting tool state online test method according to an embodiment of the invention.
Fig. 2 is the block diagram for showing cutting tool state online detection instrument according to an embodiment of the invention.
Fig. 3 is the schematic diagram for showing original sound pressure signal according to an embodiment of the invention.
Fig. 4 is the schematic diagram for showing detection sound pressure signal according to an embodiment of the invention.
Reference
100 cutting tool state online detection instruments
1 capture device
11 acoustic pressure acquisition mechanisms
2 extraction elements
3 a reference value set up mechanism
4 degradation determination devices
S101 captures step
S102 extraction steps
S103 a reference value establishment steps
S104 judgment steps
The original sound pressure signals of V
V1 detects sound pressure signal
Embodiment
Below according to Fig. 1 to Fig. 4, and illustrate embodiments of the present invention.The explanation is not for the implementation of the limitation present invention
Mode, and it is one kind of embodiments of the invention.
As shown in fig.1, and coordinate refer to Fig. 2, the present embodiment is described as follows.The bite of one embodiment of the invention
Tool state online test method, for detecting the state of a cutting tool, comprise the steps of：Capture step S101, extraction step
Rapid S102 and judgment step S104.And one embodiment of the invention performing the cutting tool state of above-mentioned detection method
Online detection instrument 100, including capture device 1, extraction element 2 and degradation determination device 4.Capture device 1 is picked including acoustic pressure
Mechanism 11 is taken, is arranged at the side of the cutting tool.Extraction element 2 is connected to capture device 1, and degradation determination device 4, which is connected to, to be carried
Take device 2.
In step S101 is captured, using acoustic pressure acquisition mechanism 11, while cutting tool machining part, capture and add
The original sound pressure signal V of workpiece.3rd figure shows original sound pressure signal V signal schematic representation of the acoustic pressure to the time.Original acoustic pressure letter
Number V is made up of the sound pressure signal of each frequency, and these sound pressure signals include the motor vibration signal of cutting tool, miscellaneous audio number etc..
In the present embodiment, acoustic pressure acquisition mechanism 11 is, for example, microphone, captures the original sound pressure signal V of simulation, and capture device 1 is also
Including Analog-digital Converter mechanism, the original sound pressure signal of simulation is converted into digital original sound pressure signal V.Further,
Capture device 1 filters out noise signals to capture the original sound pressure signal V of the workpiece in capturing in step S101.
Then in extraction step S102, extraction element 2 is extracted for original sound pressure signal V with predetermined frequency range
Sound pressure signal V1 is detected, the frequency range covers at least one natural frequency of the workpiece.Natural frequency is with the workpiece
Material, shape are relevant, and same workpiece has an identical natural frequency, and when workpiece is cut and vibrated by cutting tool,
It is particularly evident in the sound pressure signal that natural frequency is sent.Therefore the detection sound pressure signal V1 extracted through extraction step S102,
It can be considered that the workpiece is cut and vibrates sent sound pressure signal.And material, shape difference that can be according to workpiece,
Convert the frequency range of extraction.4th figure shows detection sound pressure signal V1 signal schematic representation of the acoustic pressure to the time, itself and the 3rd figure
There is corresponding close in the time with part signal.In one embodiment, the frequency range is (such as 10,000 hertz to one of high-frequency range
10002 kilo hertzs) because the penetration power of high frequency sound wave is relatively low, acoustic pressure acquisition mechanism 11, which is less susceptible to capture, arrives other cutting tool (examples
As cutter is struck in next door or cutting for farther place) cut another workpiece when caused high-frequency range sound pressure signal.Cutting tool
State online detection instrument 100 may also include blimp, and the periphery for being arranged at acoustic pressure acquisition mechanism 11 (such as partly surrounds acoustic pressure
Acquisition mechanism 11 and corresponding cutting tool), to isolate noise.
In judgment step S104, degradation determination device 4 will detect sound pressure signal V1 characteristic value with detecting a reference value phase
Compare, and according to comparison result judge the cutting tool deterioration whether.Characteristic value and detection a reference value can be the sound of crest
Pressure value, acoustic pressure average value, specific waveforms etc., and the invention is not restricted to this.In one embodiment, characteristic value and detection a reference value
For the sound pressure level of crest, when the sound pressure level of detection sound pressure signal V1 crest is less than the detection a reference value, the bite is judged
Tool deterioration.Because this typically represent cutting tool because of abrasion alteration of form, do not cut to workpiece completely, cause workpiece
Extent of vibration diminishes, therefore the detection sound pressure signal V1 detected sound pressure level also reduces in the lump.In one embodiment, characteristic value
It is different when detecting sound pressure signal V1 waveform with the detection a reference value and detection a reference value is specific waveforms, judge the cutting
Cutter deteriorates.Such a situation, which often betides cutting tool, to be there is breach and not to be cut to workpiece, causes to detect sound pressure signal V1
There is not predetermined waveform.
Further, the cutting tool state online test method of the present embodiment, before judgment step S104, in addition to
A reference value establishment step S103；Cutting tool state online detection instrument 100 also establishes device 3 including an a reference value, is connected to
Degradation determination device 4.
In a reference value establishment step S103, a reference value establishes device 3 while cutting tool cutting test workpiece, takes
The detection sound pressure signal V1 of the test workpiece must be relevant to, and according to the characteristic value for detecting sound pressure signal V1 of test workpiece
Determine to detect a reference value, such as determine the detection a reference value for the 85% of the sound pressure level of detection sound pressure signal V1 crest.
In one embodiment, in a reference value establishment step S103, the preceding detection acoustic pressure being once relevant to acquired by the workpiece is believed
Detection sound pressure signal number as the new test workpiece, and update the detection a reference value when each detection.
In another embodiment, a reference value set up mechanism 3 is every during cutting tool cuts the test workpiece
Captured and extracted every a predetermined interval time, and obtain the detection sound pressure signal V1 of a plurality of test workpieces, and with
Statistical determines the detection a reference value according to the detection sound pressure signal V1 of a plurality of test workpieces.Such as the detection benchmark
Value is determined according to the acoustic pressure standard deviation of the detection sound pressure signal V1 of a plurality of test workpieces characteristic value.Come in detail
Say, such as calculated complex detection sound pressure signal V1 acoustic pressure average value and acoustic pressure standard deviation, determine the detection a reference value
Subtract the sound pressure level of two acoustic pressure standard deviations again for the acoustic pressure average value.
In summary, cutting tool state online test method and equipment of the invention, capture and cut relative to prior art
As basis for estimation, the present invention changes to adopt using the natural frequency of workpiece as the source of detection sound pressure signal the sound of cutting knife tool,
Not only accuracy in detection significantly increases, and on-line checking cutting tool state without stopping production line, can also be not required to root in real time
Make parameter adjustment according to the cutting tool of different platform, therefore be widely portable to a variety of different cutting tools and various processing
Material.
Narration above and explanation are only the explanation of presently preferred embodiments of the present invention, and working as those skilled in the art can
Make other modifications according to claim defined above and above-mentioned explanation, only this little modification should be to be of the invention
Spirit and the present invention interest field in.
Claims (10)
- A kind of 1. cutting tool state online test method, for detecting the state of cutting tool, it is characterised in that comprising following Step：Step is captured, using acoustic pressure acquisition mechanism, while described cutting tool machining part, captures described processing The original sound pressure signal of part；Extraction step, detection sound pressure signal is extracted with predetermined frequency range for described original sound pressure signal, wherein institute The frequency range stated covers at least one natural frequency of described workpiece；AndJudgment step, by the characteristic value of described detection sound pressure signal compared with detecting a reference value pair, and according to described comparison As a result whether is the deterioration of the cutting tool described in judging.
- 2. cutting tool state online test method as claimed in claim 1, it is characterised in that in described judgment step it Before, in addition to a reference value establishment step：While described cutting tool cutting test workpiece, the detection acoustic pressure for being relevant to described test workpiece is obtained Signal, and determine described detection a reference value according to the characteristic value of the detection sound pressure signal of described test workpiece.
- 3. cutting tool state online test method as claimed in claim 2, it is characterised in that established in described a reference value In step, the detection sound pressure signal of a plurality of described test workpieces is obtained, and with statistical according to a plurality of described The characteristic value for testing the detection sound pressure signal of workpiece determines described detection a reference value.
- 4. cutting tool state online test method as claimed in claim 3, it is characterised in that established in described a reference value In step, carried out during the described test workpiece of described cutting tool cutting every a predetermined interval time Capture and extract, and obtain the detection sound pressure signals of a plurality of described test workpieces.
- 5. the cutting tool state online test method as described in claim 3 or 4, it is characterised in that described detection benchmark Value is determined according to the acoustic pressure standard deviation of the characteristic value of the detection sound pressure signal of a plurality of described test workpieces.
- 6. cutting tool state online test method as claimed in claim 2, it is characterised in that established in described a reference value In step, using the preceding detection sound pressure signal being once relevant to acquired by described workpiece as new described test workpiece Detection sound pressure signal, and the described detection a reference value of renewal when each detection.
- 7. cutting tool state online test method as claimed in claim 1, it is characterised in that in described acquisition step, Noise signals are filtered out to capture the original sound pressure signal of described workpiece.
- A kind of 8. cutting tool state online detection instrument, for detecting the state of cutting tool, it is characterised in that include：Capture device, including acoustic pressure acquisition mechanism, using described acoustic pressure acquisition mechanism, in described cutting tool machining While part, the original sound pressure signal of described workpiece is captured；Extraction element, is connected to described capture device, it is configured and for described original sound pressure signal with predetermined frequency Scope extracts detection sound pressure signal, wherein described frequency range covers at least one natural frequency of described workpiece； AndDegradation determination device, is connected to described extraction element, it is configured and by the characteristic value of described detection sound pressure signal with A reference value is detected compared to pair, and judged according to described comparison result described cutting tool deterioration state whether.
- 9. cutting tool state online detection instrument as claimed in claim 8, it is characterised in that also establish and fill including a reference value Put, be connected to described degradation determination device, it is configured and while described cutting tool cutting test workpiece, obtain The detection sound pressure signal of described test workpiece is relevant to, and is determined according to the detection sound pressure signal of described test workpiece Go out described detection a reference value,Wherein described a reference value set up mechanism is configured and obtains the detection sound pressure signal of a plurality of described test workpieces, And determine described detection a reference value according to the detection sound pressure signal of a plurality of described test workpieces with statistical,Wherein described a reference value set up mechanism is every during the described test workpiece of described cutting tool cutting Captured and extracted every predetermined interval time, and obtain the detection sound pressure signal of a plurality of described test workpieces,Wherein described detection a reference value is according to the sound of the characteristic values of the detection sound pressure signals of a plurality of described test workpieces Pressure standard deviation is determined.
- 10. cutting tool state online detection instrument as claimed in claim 8, it is characterised in that also including blimp, set In the periphery of described acoustic pressure acquisition mechanism, to isolate noise.
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| CN201610683263.6A CN107756138A (en) | 2016-08-18 | 2016-08-18 | Cutting tool state online test method and equipment |
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|---|---|---|---|
| CN201610683263.6A CN107756138A (en) | 2016-08-18 | 2016-08-18 | Cutting tool state online test method and equipment |
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| CN107756138A true CN107756138A (en) | 2018-03-06 |
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| CN201610683263.6A Pending CN107756138A (en) | 2016-08-18 | 2016-08-18 | Cutting tool state online test method and equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091216A (en) * | 2019-05-13 | 2019-08-06 | 江苏师范大学 | The monitoring of milling noise and milling vibration and its correlation analysis system and method |
| TWI670138B (en) * | 2018-11-22 | 2019-09-01 | 國立臺灣科技大學 | Method for predicting tool wear in an automatic processing machine |
| CN110370079A (en) * | 2019-07-01 | 2019-10-25 | 无锡市锐法因精密机械有限公司 | A kind of cutter wear measurement method |
| CN111014747A (en) * | 2019-12-18 | 2020-04-17 | 内蒙古第一机械集团股份有限公司 | High-power-diameter hole series machining method |
| CN113375629A (en) * | 2021-06-07 | 2021-09-10 | 安徽机电职业技术学院 | Cutter grinding damage detection device of intelligent manufacturing production line |
| CN115008254A (en) * | 2022-05-30 | 2022-09-06 | 河源富马硬质合金股份有限公司 | Cutter state monitoring method in high-speed milling process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831365A (en) * | 1988-02-05 | 1989-05-16 | General Electric Company | Cutting tool wear detection apparatus and method |
| CN1039549A (en) * | 1989-01-27 | 1990-02-14 | 清华大学 | A kind of cutting-tool by sound emission monitors (control) method and apparatus |
| CN102001023A (en) * | 2010-12-24 | 2011-04-06 | 沈阳飞机工业（集团）有限公司 | Tool wear detector |
| CN102501139A (en) * | 2011-11-02 | 2012-06-20 | 厦门大学 | Online monitoring device for state of cutting tools |
| CN104889869A (en) * | 2014-03-07 | 2015-09-09 | 株式会社迪思科 | Cutting device |
-
2016
- 2016-08-18 CN CN201610683263.6A patent/CN107756138A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831365A (en) * | 1988-02-05 | 1989-05-16 | General Electric Company | Cutting tool wear detection apparatus and method |
| CN1039549A (en) * | 1989-01-27 | 1990-02-14 | 清华大学 | A kind of cutting-tool by sound emission monitors (control) method and apparatus |
| CN102001023A (en) * | 2010-12-24 | 2011-04-06 | 沈阳飞机工业（集团）有限公司 | Tool wear detector |
| CN102501139A (en) * | 2011-11-02 | 2012-06-20 | 厦门大学 | Online monitoring device for state of cutting tools |
| CN104889869A (en) * | 2014-03-07 | 2015-09-09 | 株式会社迪思科 | Cutting device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI670138B (en) * | 2018-11-22 | 2019-09-01 | 國立臺灣科技大學 | Method for predicting tool wear in an automatic processing machine |
| CN110091216A (en) * | 2019-05-13 | 2019-08-06 | 江苏师范大学 | The monitoring of milling noise and milling vibration and its correlation analysis system and method |
| CN110091216B (en) * | 2019-05-13 | 2021-06-01 | 江苏师范大学 | Milling noise and milling vibration monitoring and correlation analysis system and method |
| CN110370079A (en) * | 2019-07-01 | 2019-10-25 | 无锡市锐法因精密机械有限公司 | A kind of cutter wear measurement method |
| CN111014747A (en) * | 2019-12-18 | 2020-04-17 | 内蒙古第一机械集团股份有限公司 | High-power-diameter hole series machining method |
| CN113375629A (en) * | 2021-06-07 | 2021-09-10 | 安徽机电职业技术学院 | Cutter grinding damage detection device of intelligent manufacturing production line |
| CN113375629B (en) * | 2021-06-07 | 2024-02-13 | 安徽机电职业技术学院 | Cutter grinding damage detection device of intelligent manufacturing production line |
| CN115008254A (en) * | 2022-05-30 | 2022-09-06 | 河源富马硬质合金股份有限公司 | Cutter state monitoring method in high-speed milling process |
| CN115008254B (en) * | 2022-05-30 | 2024-06-04 | 河源富马硬质合金股份有限公司 | Method for monitoring state of cutter in high-speed milling process |
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Application publication date: 20180306 |