EP2773476A1 - Ribletfolie und verfahren zu deren herstellung - Google Patents
Ribletfolie und verfahren zu deren herstellungInfo
- Publication number
- EP2773476A1 EP2773476A1 EP12780401.1A EP12780401A EP2773476A1 EP 2773476 A1 EP2773476 A1 EP 2773476A1 EP 12780401 A EP12780401 A EP 12780401A EP 2773476 A1 EP2773476 A1 EP 2773476A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- riblet
- layer portion
- foil
- metal powder
- film
- 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.)
- Granted
Links
- 239000011888 foil Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 39
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000007769 metal material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000002923 metal particle Substances 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000002985 plastic film Substances 0.000 description 8
- 229920006255 plastic film Polymers 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 229910021324 titanium aluminide Inorganic materials 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910001040 Beta-titanium Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 241001124320 Leonis Species 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229940026110 carbon dioxide / nitrogen Drugs 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- -1 cobalt Chemical compound 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
Definitions
- the present invention relates to a riblet film and a process for its preparation.
- the riblet film is of metallic material and is built up in layers on a reference mold.
- the riblet film has a riblet structure which reduces air resistance.
- CONFIRMATION COPY the company 3M were glued to the outer surface of an aircraft.
- a resistance reduction of 2% could be detected (Szodruch J., Dziomba, B., Aircraft Drag Reduction Technologies, 29th Aerospace Science Meeting, Reno, Nevada, 07-10 Jan. 1991). This resulted in a fuel saving of 1.5% (Roberts JP, Drag Reduction: An Industrial Challenge, Special Course on Skin Drag Drag Reduction, AGARD Report 786, 1992).
- the structured plastic films used hitherto have not only a lack of mechanical resistance but also a degradation of the plastic film and the adhesive with which the plastic films adhere to the aircraft.
- a consequence of the lack of mechanical resistance is, for example, the rounding of the tip radius of a sawtooth-shaped structuring, which can lead to a repeal of the friction-reducing effect. (Hage, W., For resistance reduction of three-dimensional riblet structures and other surfaces, thesis TU Berlin 2004).
- the degradation can also lead to a detachment of the plastic films during operation.
- structured metal foils for example on a structural component of an aircraft or helicopter
- the air flow resistance can be significantly reduced.
- the structure on the metal foil riblets which are microscopic grooves on the surface of the metal foil.
- Such structured metal foils are referred to below as riblet foil.
- the mechanical resistance of the riblet film is higher than with plastic films.
- the electrical conductivity is also given at the same time to provide lightning protection.
- DE10314373A1 a precision casting method is known, are produced with the turbine blades of titanium aluminides (TiAl) with a structured surface.
- TiAl titanium aluminides
- manufacturing processes are known for the production of riblet films in the required quantity and / or size, in which metal foils are structured by mechanical processing.
- mechanical (re) molding methods such as rolling (including incremental methods such as so-called “incremental rolling”) or embossing.
- the tools used for example rollers, must be pressed onto the metal foil with high pressure.
- Such tools are usually formed from a solid solid body, such as steel.
- such tools must be made of appropriate material, for example, if elevated temperatures are necessary to change the metal foil by plastic deformation so that a Ribletfolie arises.
- High-strength materials such as beta-titanium alloys, whose strengths reach values of up to 1700 MPa, can no longer tolerate forming pressure. be plasticized so that the Riblet Quilt can not or only roughly generated on the metal foil.
- the invention is based on the idea of specifying a simple process for the production of metallic riblet films, wherein the mechanical and functional properties of the riblet film can be adapted to the requirements of the respective application by a suitable choice of a wide variety of metals and / or alloys.
- the riblet film is made by a layered construction on a reference form and then detached from it.
- the reference shape has on at least one surface a structure which corresponds to a negative mold of at least one riblet structure.
- the negative mold has microscopic depressions on the surface of the reference mold. After peeling off the reference riblets are as microscopic peaks on the riblet film formed.
- the riblets can be formed on the entire riblet film or be present in selected subregions. Accordingly, the surface of the reference shape is structured.
- the thickness of the Ribletfolie less than 500 ⁇ and advantageously has a thickness between 50 - 400 ⁇ , in particular at least 200 ⁇ . The thickness of the Ribletfolie ensures the lowest possible weight a simple adaptation to the particular component on which it is applied.
- a method which serves to produce a riblet film, wherein the riblet film is built up in layers.
- a reference shape has on at least one surface a structure which corresponds to a negative mold of at least one riblet structure. On this surface will at least one
- Layer portion of a metal powder applied so that forms a metallic material.
- the application of further layer portions of metal powder in a vertical or horizontal direction on the surface of the reference form can be repeated as often as desired.
- the thus formed at least one layer portion is detached from the reference form, so that the metallic Ribletfolie is formed.
- This has a riblet structure on at least one surface.
- the powder of metal or metal alloy comprises at least all light metals in the main groups or subgroups of the periodic table, in particular aluminum or titanium and mixtures thereof, wherein also reinforcing particles can be mixed in the metal / alloy powder, as well as hard metals.
- the hard metals comprise at least one reinforcing phase composite such as tungsten carbide (WC) and a matrix or binder such as cobalt, of course, the metals also include metal alloys containing at least one of said metals including copper, zinc, lithium, beryllium, scandium, vanadium or Contain yttrium and in particular also steel alloys; preferably titanium / alloys or steel alloys, in particular aluminum / alloys.
- the reference may be formed of a variety of materials.
- the reference shape or surface having said structure is formed of materials which have high durability and hardly wear, for example, steel X45NiCrMo4, which is known to be used for embossing and forming tools and is readily polishable.
- the surface of the reference form comprises a structure corresponding to a negative mold of at least one riblet structure formed by a plurality of trapezoidal, semicircular, streamlined and / or sawtooth riblets, or a combination thereof.
- the negative form of the riblets comprise a size range with a Riblet width of about 20 ⁇ to 130 ⁇ , preferably 30 ⁇ to 80 microns, especially 50 m to 60 ⁇ , especially 60 ⁇ .
- At least one negative form of a riblet has a height that is half the distance to a riblet adjacent to it.
- the application of a layer portion on the surface of the reference shape is carried out in layers.
- one or more layers of the same or different metal powder can be applied.
- the first layer section can be applied from a titanium powder (or titanium alloy) and the remaining layer sections from aluminum powder.
- the riblet film thus formed has very durable resistant riblets and a base that is inexpensively made of aluminum.
- aluminum can be equipped by methods known to those skilled in the art, such as anodizing, with a surface which is ideally suited for bonding.
- the nature of the structured surface allows for easy release of the applied layer portions (s) from the reference form.
- the application of the metal powder to the reference fitting is preferably carried out by spraying the metal powder.
- the metal powder is applied in layers by cold gas spraying, thermokinetic spraying (eg Flamecon® from Leoni), plasma-assisted application (eg Plasmadust® from Reinhausen Plasma) or known thermal spraying methods such as flame spraying, plasma spraying or HVOF
- thermokinetic spraying eg Flamecon® from Leoni
- plasma-assisted application eg Plasmadust® from Reinhausen Plasma
- known thermal spraying methods such as flame spraying, plasma spraying or HVOF
- the riblet structures formed comprise a size range with a riblet width of about 20 pm to 130 pm, preferably 30 pm to 80 pm, in particular 50 pm to 60 pm
- the ribbon height may be in the range of 50-100% of the riblet width
- the ribbon height may be the same as the riblet width or may comprise a combination of one of
- the metal powder is accelerated to the surface of the reference mold with high energy. Upon impact of the metal particles, these combine by plastic deformation or cold welding to form a metallic material.
- a heated gas is accelerated and the metal powder is injected into the gas jet and accelerated by it.
- plasma spraying as an example of thermal spraying, an arc is created between the cathode and the anode of the plasma torch in a normal or inert atmosphere or vacuum.
- the gas flowing through the plasma torch is passed through the arc and ionized.
- the metal powder is injected and melted / plasticized by the high plasma temperature.
- the plasma stream accelerates the metal particles toward the surface of the reference.
- the metal particles combine to form a tight, firmly adhering layer by plastic deformation and / or cold welding or rigidification.
- the spraying of the at least one layer section has the advantage that a much higher deposition rate can be achieved on the reference form than in the prior art in a galvanic deposition, for example. This enables economically viable production, in particular of large riblet films, for example for the wing of an aircraft such as the Airbus A380. Also, almost any metal powder can be used, wherein the grain size can vary and the size of the riblet structure is selected according to from a few nm to several hundred m.
- the at least one layer section may have a different thickness.
- the layer thickness may be variable, for example the edge regions may be thicker or thinner than the middle of the layer section. Also, the entire layer portion may be formed with a substantially constant thickness.
- the reference may be used once or may be intended for multiple use.
- a reusable form is inexpensive and can be used for the production of riblet films from various metal powders, the riblet structure being identical.
- the reference shape is formed as a roller. This enables a continuous production of the riblet film according to the invention.
- the thickness of the riblet film can be adjusted via the rotational speed of the roller. At low rotational speed, a thickness of, for example, 400 m is formed. If, on the other hand, the riblet film is to be thin, for example 200 m, the rotational speed of the roller is simply increased. This allows a simple control of the thickness of the riblet film.
- the metallic riblet film can be at least partially finished. This includes, for example, a backside coating with an adhesive, the functionalization of the surfaces by a coating or a modification of the surface, so that they are dirt-repellent or anti-icing.
- Fig. 1a shows the production of a Ribletfolie according to a first embodiment
- FIG. 1b shows the detached riblet foil with trapezoidal riblet structure
- Fig. 2 shows the production of a riblet film according to a second embodiment.
- FIG. 1 a sketch of the production of a riblet film is shown.
- a reference 11 has a riblet structure 13 on a surface 12.
- metal particles 15 of a metal powder are accelerated to the surface 12 at high speed. Upon impact, the metal particles 15 deform and combine to form a metallic material.
- the layer section 14 is built up in layers. The spraying of the metal powder is stopped when the thickness of the layer portion 14 has reached the thickness required for an application.
- the coating system 16 is in this embodiment, a plant for cold gas spraying.
- a carrier gas is compressed and accelerated by relaxation in a nozzle to a speed which is below the speed of sound of the carrier gas.
- the metal powder is injected into the gas jet.
- the carrier gas has a temperature which is below the melting temperature of the metal particles 15, so that they do not melt.
- the metal particles 15 deform on impact on the surface 14, the resulting local heat release for cohesion and adhesion for the formation of the layer portion 14 provide, so that a metallic material is formed.
- FIG. 1 b shows the detached riblet foil with a trapezoidal riblet structure.
- the riblet film 10 has a base 18 and a riblet structure 17 with trapezoidal riblets.
- the reference 1 1 is reusable for producing a further metallic riblet film 10.
- Fig. 2 shows the production of a riblet film with a roller 11 as a reference.
- the roller 11 has on the surface 12 in FIG. 2 for reasons of clarity not shown negative form of a riblet structure thirteenth
- metal particles 15 are accelerated to high speeds and collide with high kinetic energy on the surface 12 of the roller 11.
- the metal particles 15 combine to form a dense layer section 14, so that a metallic material is formed.
- the rotation speed of the roller 11 determines the thickness of the layer portion 14.
- the metal particles 15 strike a previously formed layer, so that the layer portion 14 becomes thicker overall.
- the thickness of the layer portion 14 depends on several factors, for example, the circumference of the roll 1 1, the speed of the coating system relative to the width of the roller 11th
- the continuous riblet film 10 has a base 18 and a riblet structure 17, which are not shown in FIG. 2 for reasons of clarity, but are comparable to the riblet structure 17 of FIG. 1b.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011114832A DE102011114832A1 (de) | 2011-10-05 | 2011-10-05 | Ribletfolie und verfahren zu deren herstellung |
PCT/DE2012/000960 WO2013050018A1 (de) | 2011-10-05 | 2012-10-02 | Ribletfolie und verfahren zu deren herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2773476A1 true EP2773476A1 (de) | 2014-09-10 |
EP2773476B1 EP2773476B1 (de) | 2016-03-02 |
Family
ID=47115087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12780401.1A Active EP2773476B1 (de) | 2011-10-05 | 2012-10-02 | Ribletfolie und verfahren zu deren herstellung |
Country Status (6)
Country | Link |
---|---|
US (1) | US20140356219A1 (de) |
EP (1) | EP2773476B1 (de) |
CN (1) | CN103987478A (de) |
DE (1) | DE102011114832A1 (de) |
ES (1) | ES2575243T3 (de) |
WO (1) | WO2013050018A1 (de) |
Families Citing this family (22)
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DE102013013817A1 (de) | 2013-08-22 | 2015-02-26 | Airbus Defence and Space GmbH | Strukturbauteil mit einer Ribletoberfläche |
DE102015201927A1 (de) * | 2015-02-04 | 2016-08-04 | Siemens Aktiengesellschaft | Verfahren zum Kaltgasspritzen mit Maske |
US9868135B2 (en) | 2015-05-06 | 2018-01-16 | The Boeing Company | Aerodynamic microstructures having sub-microstructures |
US9751618B2 (en) | 2015-05-06 | 2017-09-05 | The Boeing Company | Optical effects for aerodynamic microstructures |
US9714083B2 (en) | 2015-05-06 | 2017-07-25 | The Boeing Company | Color applications for aerodynamic microstructures |
US10107302B2 (en) | 2015-12-10 | 2018-10-23 | General Electric Company | Durable riblets for engine environment |
US10105877B2 (en) | 2016-07-08 | 2018-10-23 | The Boeing Company | Multilayer riblet applique and methods of producing the same |
US10322436B2 (en) | 2016-10-06 | 2019-06-18 | Nano And Advanced Materials Institute Limited | Method of coating interior surfaces with riblets |
US10563310B2 (en) | 2016-12-22 | 2020-02-18 | United Technologies Corporation | Multi-wall deposited thin sheet structure |
US20180178331A1 (en) * | 2016-12-22 | 2018-06-28 | United Technologies Corporation | Reinforcement of a deposited metallic structure using reinforcing particles |
US20180179639A1 (en) * | 2016-12-22 | 2018-06-28 | United Technologies Corporation | Modular tooling for a deposited structure |
US10363634B2 (en) | 2016-12-22 | 2019-07-30 | United Technologies Corporation | Deposited structure with integral cooling enhancement features |
US10648084B2 (en) | 2016-12-22 | 2020-05-12 | United Technologies Corporation | Material deposition to form a sheet structure |
US10907256B2 (en) | 2016-12-22 | 2021-02-02 | Raytheon Technologies Corporation | Reinforcement of a deposited structure forming a metal matrix composite |
US10519552B2 (en) | 2016-12-22 | 2019-12-31 | United Technologies Corporation | Deposited material structure with integrated component |
DE102018126796A1 (de) * | 2018-10-26 | 2020-04-30 | Airbus Defence and Space GmbH | Metallwerkstoff und Verfahren für die Herstellung eines Bauteils oder Halbzeugs, sowie Halbzeug und Bauteil, insbesondere für die Luft- und Raumfahrt |
US11047239B2 (en) | 2018-12-03 | 2021-06-29 | General Electric Company | Method of forming a cure tool and method of forming a textured surface using a cure tool |
DE102019105191A1 (de) * | 2019-02-28 | 2020-09-03 | Prominent Gmbh | Verdrängerpumpe mit strömungsbegünstigten Oberflächen |
KR102231057B1 (ko) * | 2019-12-09 | 2021-03-23 | 한국전자기술연구원 | 재생성이 용이한 자동차 표면의 생체모방 인공구조물 생성 시스템 및 방법 |
US11618511B2 (en) | 2021-01-12 | 2023-04-04 | Honda Motor Co., Ltd. | Surface pattern for a vehicle |
US11987021B2 (en) | 2021-09-01 | 2024-05-21 | The Boeing Company | Multilayer riblet appliques |
DE102021006346A1 (de) | 2021-12-22 | 2023-06-22 | Kaco Gmbh + Co. Kg | Verfahren zur Herstellung von Dichtringen einer Gleitringdichtung |
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GB9116242D0 (en) * | 1991-07-27 | 1991-09-11 | British Steel Plc | Method and apparatus for producing strip products by a spray forming technique |
DE19608719A1 (de) * | 1996-03-06 | 1997-09-11 | Deutsche Forsch Luft Raumfahrt | Verfahren zur Herstellung von Formteilen |
US6043451A (en) * | 1997-11-06 | 2000-03-28 | Promet Technologies, Inc. | Plasma spraying of nickel-titanium compound |
NL1014924C2 (nl) * | 1999-07-30 | 2001-02-01 | Chromalloy Holland B V | Beperking van de luchtweerstand voor componenten van een gasturbine motor. |
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DE10314373A1 (de) | 2003-03-28 | 2004-10-07 | Rwth Aachen | Urfomverfahren für ein Bauteil mit Mikrostruktur-Funktionselement |
CN100528425C (zh) * | 2007-11-22 | 2009-08-19 | 上海交通大学 | 活泼金属钛和碳化硼复合球形热喷涂粉末的制备方法 |
RU2506188C2 (ru) * | 2008-08-05 | 2014-02-10 | Алкоа Инк. | Металлические листы и пластины с текстурированными поверхностями, уменьшающими трение, и способы их изготовления |
CN101487130B (zh) * | 2009-01-06 | 2010-09-22 | 北京航空航天大学 | 采用脉冲电铸方法制作有鳞生物表皮形貌复制模板的复制方法 |
US8668166B2 (en) * | 2009-01-29 | 2014-03-11 | The Boeing Company | Shape memory riblets |
US8684310B2 (en) * | 2009-01-29 | 2014-04-01 | The Boeing Company | Rigid tipped riblets |
US8720047B2 (en) * | 2009-05-08 | 2014-05-13 | Hoowaki, Llc | Method for making microstructured objects |
WO2010138132A1 (en) * | 2009-05-26 | 2010-12-02 | The Board Of Trustees Of The University Of Illinois | Casting microstructures into stiff and durable materials from a flexible and reusable mold |
CN201925268U (zh) * | 2010-11-09 | 2011-08-10 | 林瑞麟 | 降低物体行进阻力的结构 |
-
2011
- 2011-10-05 DE DE102011114832A patent/DE102011114832A1/de not_active Withdrawn
-
2012
- 2012-10-02 US US14/350,335 patent/US20140356219A1/en not_active Abandoned
- 2012-10-02 WO PCT/DE2012/000960 patent/WO2013050018A1/de active Application Filing
- 2012-10-02 EP EP12780401.1A patent/EP2773476B1/de active Active
- 2012-10-02 CN CN201280059919.7A patent/CN103987478A/zh active Pending
- 2012-10-02 ES ES12780401.1T patent/ES2575243T3/es active Active
Non-Patent Citations (1)
Title |
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See references of WO2013050018A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2013050018A1 (de) | 2013-04-11 |
DE102011114832A1 (de) | 2013-04-11 |
ES2575243T3 (es) | 2016-06-27 |
US20140356219A1 (en) | 2014-12-04 |
EP2773476B1 (de) | 2016-03-02 |
CN103987478A (zh) | 2014-08-13 |
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