CN106828967A - Full-height foaming structure multi-rotor unmanned aerial vehicle manufacture method - Google Patents

Full-height foaming structure multi-rotor unmanned aerial vehicle manufacture method Download PDF

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Publication number
CN106828967A
CN106828967A CN201611250999.0A CN201611250999A CN106828967A CN 106828967 A CN106828967 A CN 106828967A CN 201611250999 A CN201611250999 A CN 201611250999A CN 106828967 A CN106828967 A CN 106828967A
Authority
CN
China
Prior art keywords
aerial vehicle
unmanned aerial
rotor unmanned
foam core
full
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611250999.0A
Other languages
Chinese (zh)
Inventor
谢星
谢一星
周洪
彭海珍
李宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEROSPACE SHENZHOU AIRCRAFT Co Ltd
Original Assignee
AEROSPACE SHENZHOU AIRCRAFT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by AEROSPACE SHENZHOU AIRCRAFT Co Ltd filed Critical AEROSPACE SHENZHOU AIRCRAFT Co Ltd
Priority to CN201611250999.0A priority Critical patent/CN106828967A/en
Publication of CN106828967A publication Critical patent/CN106828967A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/12Construction or attachment of skin panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/54Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/305Spray-up of reinforcing fibres with or without matrix to form a non-coherent mat in or on a mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C1/00Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/061Frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00Type of UAV
    • B64U10/10Rotorcrafts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2079/00Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
    • B29K2079/08PI, i.e. polyimides or derivatives thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076Aircrafts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/40Weight reduction

Abstract

The invention discloses a kind of full-height foaming structure multi-rotor unmanned aerial vehicle and its manufacture method.The body of unmanned plane is made of integrally formed mode, and the body includes composite material skin, foam core interlayer and plastic frame body skeleton, and composite material skin wraps foam core interlayer by way of being glued and plastic frame body skeleton forms the body.The present invention links together the PMI foams of low-density with good stiffness with the carbon fiber and glass fiber reinforced epoxy resin covering of intensity by the upper and lower matched moulds of mould, forms a kind of multi-rotor unmanned aerial vehicle housing construction with superperformance and more complicated outward appearance.Flight provides help during boat long for electronic multi-rotor unmanned aerial vehicle extension big load.

Description

Full-height foaming structure multi-rotor unmanned aerial vehicle manufacture method
Technical field
The present invention relates to a kind of full-height foaming structure multi-rotor unmanned aerial vehicle manufacture method, by the polymethyl of low-density Acid imide foam and the carbon fiber and glass fiber reinforced epoxy resin covering with good stiffness and intensity, it is upper and lower by mould Matched moulds links together, and forms a kind of multi-rotor unmanned aerial vehicle housing construction and its manufacture with superperformance and more complicated outward appearance Method.
Background technology
With the development of electronic technology, the control of multi-rotor aerocraft is allowed to become simple, multi-rotor unmanned aerial vehicle is huge with its Advantage, wide application prospect, make one of study hotspot of unmanned plane industry in recent years.
Multi-rotor unmanned aerial vehicle has very big advantage compared with fixed-wing unmanned plane on flying method and site requirements. Many rotors can realize that VTOL and fixed point are spiraled, and this is that fixed-wing unmanned plane is difficult to, while many rotors are to flight The requirement in space is harsh not as fixed-wing, adapts to be flown in relatively small space.Multi-rotor unmanned aerial vehicle is now used for oil and patrols Line, power-line patrolling, forest fire protection, ground mapping etc..
Multi-rotor unmanned aerial vehicle is to drive propeller rotation to provide lift by multiple motors, real so as to overcome self gravitation Existing unmanned plane during flying.Therefore this aircraft utilizes rudder face weave control aspect without image of Buddha fixed wing aircraft, consumes electricity It is more that the increase of battery capacity also brings the rising of battery weight, it is necessary to high capacity cell meets flight needs, weight, During boat, structural strength three mutually restrict, now in order to optimize the design of aircraft, it is ensured that body in-flight possesses foot in boat long Enough intensity, while body will have enough rigidity, the vibrations for preventing motor rotating band from coming make housing construction that obvious deformation to occur, In the case where above-mentioned condition is met, construction weight will control minimum.
The content of the invention
It is an object of the invention to provide a kind of many rotor housing constructions that can effectively solve the above problems.
The structure is by the polymethacrylimide foam of low-density and the carbon fiber and glass with good stiffness and intensity Glass fiber reinforced epoxy resin covering, is linked together by the upper and lower matched moulds of mould, forms a kind of with superperformance and more multiple The multi-rotor unmanned aerial vehicle housing construction of miscellaneous outward appearance.Flight provides help during boat long for electronic multi-rotor unmanned aerial vehicle extension big load.
The body of full-height foaming structure multi-rotor unmanned aerial vehicle of the invention is made of integrally formed mode, the machine Body includes composite material skin, foam core interlayer and plastic frame body skeleton, and composite material skin is wrapped up by way of being glued Firmly foam core interlayer and plastic frame body skeleton form the body.
The manufacture method of full-height foaming structure multi-rotor unmanned aerial vehicle of the invention, it is characterised in that:Including:Step one, According to product design and the multiple Split molds of cavity body structure design processing;Step 2, using machining center coordinate Split mold add Work polymethacrylimide foam core body, plastic frame body is made using Cutter Body Processing with Machining Center or the mode of injection moulding;Step Rapid three, respectively on split metal die, carbon fiber and glass fabric the enhancing ring of split are prepared using wet therapy forming process Epoxy resin-based composite covering;Step 4, by resin uniform application in foam core surface and internal cavity, adopted in mould The method being glued with matched moulds links together polymethacrylimide foam core body, plastic frame body and split covering;Step 5th, many rotations of carbon fiber and glass fiber reinforcement covering full-height polymethacrylimide foam sandwich are obtained after solidifying Wing body.
It is preferred that the Split mold includes mold, lower mould and rear mold, the inner chamber of the mold is on unmanned plane The shape of half portion profile, the inner chamber of the lower mould is the shape of unmanned plane lower half profile, at the rear mold lumen centers It is provided with intermediate cylinder, the shape for being shaped as coordinating body inner chamber of the intermediate host.
It is preferred that in the step 3, thickness 0.048mm, the dry cloth of density 48g/m2 glass fibres are laid in into split pattern first On the whole inner surface of tool, uniformly exhaustively brushed on glass fabric with hairbrush epoxy resin-impregnated, be impregnated with glass cloth Then Split mold after the completion of laying is sent into curing oven by resin to being fitted on Split mold completely, solid under the conditions of 60 DEG C Change 3 hours, then the 3K carbon cloths of laying density 200g/m2 and solidified on glass fabric using same gimmick, be made Split covering.
It is preferred that plastic frame body is configured on the corresponding position of foam core then uniform on the surface and inner chamber of foam core Resin is spread in painting, is filled between each Split mold, and the Split mold matched moulds with split covering is pressurizeed using instrument, and It is put into baking oven and solidifies 3 hours under the conditions of 60 DEG C, is made body.
It is preferred that the step of also including to body polishing flash after shaping depanning and beautification spray painting.
It is preferred that the polymethacrylimide foam core body is to be processed into PMI blank materials by using machining center Type, from foam core material density in 40kg/m3 or so.
The present invention combines the low material of strength high density, not only increases the intensity of unmanned plane housing construction, also mitigates Construction weight, while also having certain complicated moulding.
Brief description of the drawings
Fig. 1 is the mould schematic diagram of body production of the present invention.
Fig. 2 is mold schematic diagram in the present invention.
Fig. 3 is the wet therapy forming process schematic diagram of covering in the present invention.
Fig. 4 is foam core and plastic frame body cooperation schematic diagram in the present invention.
Fig. 5 is shaping body structural representation in the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the production specific embodiment to the housing construction in the present invention elaborates.
A kind of manufacture of full-height foaming structure multi-rotor unmanned aerial vehicle body in the present invention, it is comprised the following steps:
1) mould processing
Use metal material processing mold 1, lower mould 2, rear mold 3.The mould of making should have case hardness very high And surface quality, while adapting to temperature change.
2) foam core and plastic frame body are processed
According to multi-rotor unmanned aerial vehicle appearance structure and cavity body structure, using density in 40kg/m3 or so PMI (poly- methyl-props Alkene acid imide foam) processing foam core 4, process framework 5 and framework 6 using nylon material.
3) preparation of body covering
As shown in figure 3, it is as follows to prepare multiple material covering:Respectively in mold 1, lower mould 2, rear mold 3, according to design drawing Paper requirement wet placement fiber cloth laying, split metal pattern is laid in by thickness 0.048mm, the dry cloth of density 48g/m2 glass fibres On tool, uniformly exhaustively brushed on glass fabric with hairbrush epoxy resin-impregnated, glass cloth is impregnated with resin to pasting completely Close on mould.To be overlapped using cloth at complicated shape, laying will be finally laid to die joint;Basic resin system is from high The epoxy-resin systems of toughness.Enter curing oven after the completion of laying, solidify 3 hours under the conditions of 60 DEG C.The same hand on mould again The 3K carbon cloths of method laying density 200g/m2 simultaneously solidify.Prepare the upper and lower covering of body, in chamber and the covering of rear portion.
4) matched moulds is glued draft machine body structure
As shown in figure 4, framework 5 and framework 6 are individually placed on the corresponding position of foam core 3, then by PMI foam cores The cavity at 4 rear portions is enclosed within the rectangle cylinder of rear mold 3.The resin on uniform application in foam core 4, together with rear mold 3 one With being placed on lower mould 2, it is harmonious with mold 1 after positioning, until each mating surface of mould is adjacent to.Framework 5 and framework 6 are conducive to Produce body equipment compartment and battery compartment opening at it is attractive in appearance, while to formed opening at have strengthen effect.
5) curing molding
Mould after matched moulds is pressurizeed using instrument, and is put into baking oven.Insert the interior solidification 3 under the conditions of 60 DEG C of baking oven small When, polish off flash after shaping depanning carries out beautification spray painting again, just obtains this foam-filled multi-rotor unmanned aerial vehicle body, such as Shown in accompanying drawing 5.

Claims (7)

1. a kind of full-height foaming structure multi-rotor unmanned aerial vehicle, it is characterised in that its body is made of integrally formed mode, The body includes composite material skin, foam core interlayer and plastic frame body skeleton, the side that composite material skin passes through splicing Formula wraps foam core interlayer and plastic frame body skeleton forms the body.
2. the manufacture method of the full-height foaming structure multi-rotor unmanned aerial vehicle described in a kind of claim 1, it is characterised in that:Bag Include:
Step one, according to product design and the cavity body structure design multiple Split molds of processing;
Step 2, using machining center coordinate Split mold process polymethacrylimide foam core body, using machining center The mode of processing or injection moulding makes plastic frame body;
Step 3, respectively on split metal die, the carbon fiber and glass fabric of split are prepared using wet therapy forming process Reinforced epoxy based composites covering;
Step 4, by resin uniform application in foam core surface and internal cavity, the method being glued using matched moulds in mould Polymethacrylimide foam core body, plastic frame body and split covering are linked together;
Carbon fiber and glass fiber reinforcement covering full-height polymethacrylimide foam interlayer knot are obtained after step 5, solidification Many rotor bodies of structure.
3. the manufacture method of full-height foaming structure multi-rotor unmanned aerial vehicle according to claim 2, it is characterised in that:It is described Split mold includes mold, lower mould and rear mold, and the inner chamber of the mold is the shape of unmanned plane first half profile, institute The inner chamber for stating lower mould is the shape of unmanned plane lower half profile, is provided with intermediate cylinder at the rear mold lumen centers, institute State the shape for being shaped as coordinating body inner chamber of intermediate host.
4. the manufacture method of the full-height foaming structure multi-rotor unmanned aerial vehicle according to Claims 2 or 3, its spy's levies In:In the step 3, thickness 0.048mm, the dry cloth of density 48g/m2 glass fibres are laid in the whole of Split mold first On inner surface, uniformly exhaustively brushed on glass fabric with hairbrush epoxy resin-impregnated, glass cloth is impregnated with resin to complete It is fitted on Split mold entirely, the Split mold after the completion of laying is then sent into curing oven, solidifies 3 hours under the conditions of 60 DEG C, Then the 3K carbon cloths of laying density 200g/m2 and solidified on glass fabric using same gimmick, be made split covering.
5. the manufacture method of full-height foaming structure multi-rotor unmanned aerial vehicle according to claim 2, it is characterised in that:Will modeling Material frame body is configured on the corresponding position of foam core, then the resin on the surface of foam core and inner chamber uniform application, filling Between each Split mold, the Split mold matched moulds with split covering is pressurizeed using instrument, and be put into baking oven at 60 DEG C Under the conditions of solidify 3 hours, be made body.
6. the manufacture method of full-height foaming structure multi-rotor unmanned aerial vehicle according to claim 2, levying for its spy be:Also The step of including to body polishing flash after shaping depanning and beautification spray painting.
7. the manufacture method of full-height foaming structure multi-rotor unmanned aerial vehicle according to claim 2, levying for its spy be:Institute It is by polymethacrylimide foam blank material machine-shaping, from foam core material by using machining center to state foam core Density in 40kg/m3 or so.
CN201611250999.0A 2016-12-29 2016-12-29 Full-height foaming structure multi-rotor unmanned aerial vehicle manufacture method Pending CN106828967A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108248824A (en) * 2017-12-29 2018-07-06 南京航空航天大学 A kind of Small and micro-satellite aerofoil leading edge structure, molding die and preparation method thereof
CN108284631A (en) * 2017-12-20 2018-07-17 东汉太阳能无人机技术有限公司 A kind of unmanned plane rotor edge bonding method
CN108407331A (en) * 2018-03-05 2018-08-17 成都凯迪精工科技有限责任公司 A kind of small drone answers material rear body manufacturing method
CN108945416A (en) * 2018-06-28 2018-12-07 中国直升机设计研究所 Exoskeletal fuselage aircraft and airframe structure design method with duct lifting body
WO2018232712A1 (en) * 2017-06-22 2018-12-27 深圳市大疆创新科技有限公司 Method for manufacturing foamed material element, foamed material element and fixed-wing unmanned aerial vehicle
CN109366812A (en) * 2018-11-28 2019-02-22 北京航空航天大学 It is a kind of for processing the mold of seriation aircraft fuselage shell
CN109747181A (en) * 2019-03-04 2019-05-14 保定国奥新能源工程材料科技有限责任公司 The manufacturing method of duct
CN112519266A (en) * 2019-09-17 2021-03-19 顺丰科技有限公司 Unmanned aerial vehicle wing forming method
CN113619155A (en) * 2021-08-04 2021-11-09 陕西天翌天线股份有限公司 Integral co-curing forming die and method for unmanned aerial vehicle body and rotor wing rod
CN114274543A (en) * 2021-12-15 2022-04-05 成都飞机工业(集团)有限责任公司 Reinforced skin positioning and forming method
CN114476060A (en) * 2020-10-27 2022-05-13 株式会社石川能源研究 Flying device

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US20160257427A1 (en) * 2015-03-04 2016-09-08 The Boeing Company Co-curing process for the joining of composite structures
CN204623822U (en) * 2015-04-23 2015-09-09 杨涛 A kind of composite structure for unmanned plane and adopt many rotor wing unmanned aerial vehicles of this structure
CN105398582A (en) * 2015-11-13 2016-03-16 中国人民解放军国防科学技术大学 Skin, bulkhead integrated unmanned aerial vehicle body and manufacturing method of bulkhead integrated unmanned aerial vehicle body
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Cited By (14)

* Cited by examiner, † Cited by third party
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WO2018232712A1 (en) * 2017-06-22 2018-12-27 深圳市大疆创新科技有限公司 Method for manufacturing foamed material element, foamed material element and fixed-wing unmanned aerial vehicle
CN108284631A (en) * 2017-12-20 2018-07-17 东汉太阳能无人机技术有限公司 A kind of unmanned plane rotor edge bonding method
CN108248824A (en) * 2017-12-29 2018-07-06 南京航空航天大学 A kind of Small and micro-satellite aerofoil leading edge structure, molding die and preparation method thereof
CN108407331A (en) * 2018-03-05 2018-08-17 成都凯迪精工科技有限责任公司 A kind of small drone answers material rear body manufacturing method
CN108945416A (en) * 2018-06-28 2018-12-07 中国直升机设计研究所 Exoskeletal fuselage aircraft and airframe structure design method with duct lifting body
CN109366812B (en) * 2018-11-28 2020-07-03 北京航空航天大学 Mold for processing serialized aircraft fuselage shell
CN109366812A (en) * 2018-11-28 2019-02-22 北京航空航天大学 It is a kind of for processing the mold of seriation aircraft fuselage shell
CN109747181A (en) * 2019-03-04 2019-05-14 保定国奥新能源工程材料科技有限责任公司 The manufacturing method of duct
CN112519266A (en) * 2019-09-17 2021-03-19 顺丰科技有限公司 Unmanned aerial vehicle wing forming method
CN114476060A (en) * 2020-10-27 2022-05-13 株式会社石川能源研究 Flying device
CN113619155A (en) * 2021-08-04 2021-11-09 陕西天翌天线股份有限公司 Integral co-curing forming die and method for unmanned aerial vehicle body and rotor wing rod
CN113619155B (en) * 2021-08-04 2023-08-22 陕西天翌科技股份有限公司 Integral co-curing forming die and method for unmanned aerial vehicle body and rotor wing rod
CN114274543A (en) * 2021-12-15 2022-04-05 成都飞机工业(集团)有限责任公司 Reinforced skin positioning and forming method
CN114274543B (en) * 2021-12-15 2023-01-10 成都飞机工业(集团)有限责任公司 Reinforced skin positioning and forming method

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Application publication date: 20170613