EP4062032A1 - Dispositif et procédé d'usinage d'une aube de soufflante - Google Patents
Dispositif et procédé d'usinage d'une aube de soufflanteInfo
- Publication number
- EP4062032A1 EP4062032A1 EP20823895.6A EP20823895A EP4062032A1 EP 4062032 A1 EP4062032 A1 EP 4062032A1 EP 20823895 A EP20823895 A EP 20823895A EP 4062032 A1 EP4062032 A1 EP 4062032A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leading edge
- water jet
- component
- tool
- thickness
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/005—Repairing methods or devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
- F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/10—Manufacture by removing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/10—Manufacture by removing material
- F05D2230/14—Micromachining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/60—Structure; Surface texture
- F05D2250/62—Structure; Surface texture smooth or fine
- F05D2250/621—Structure; Surface texture smooth or fine polished
Definitions
- the present invention relates to the field of aeronautical turbomachines, and more specifically the repair or reworking of turbomachine fan blades, and in particular a method and a device for removing material from the surface of these blades.
- a leading edge made of metal allowing increased resistance to the punctual impacts to which this portion of the blades is subjected, is attached to the end of the blade.
- These metal leading edges play the role of shields taking, for example, the form of a thin lower surface fin and a thin upper surface fin joined at an upstream end of the blade, the whole following the shape of the blade on the blade. leading edge and adjacent sections of the lower surface and upper surface.
- This disclosure relates to a method of removing a component fixed to an aeronautical part, the aeronautical part comprising a first material, and the component comprising a second material different from the first material, the method comprising steps of:
- the determination step makes it possible to map the thicknesses of the component. In other words, this step makes it possible to determine the thickness of the component for a given position on the external surface of the component. This step thus makes it possible to determine the thickness of material to be removed.
- the removal step allows the component to be removed by means of a pressurized water jet.
- the high pressure of the water jet acts as a machining tool, allowing material to be removed from the component. For a given position on the surface of the component, the water jet thus removes the material thickness of the component determined in the determination step.
- the use of the pressurized water jet allows the removal of the component of the aeronautical part, without this aeronautical part being impacted. In other words, this process makes it possible to remove the first material that the component contains, while limiting direct contact, as could be the case with a mechanical machining tool, with the second material that the aeronautical part contains. . It is thus possible to spare the aeronautical part, while limiting the risks of degradation of the second material.
- the use of a pressurized water jet also has the advantage of simplifying the processes for removing material from parts having surfaces of complex shapes.
- the first material is an organic matrix composite
- the second material is a metal
- the aircraft part comprises an organic matrix composite
- the component attached to the aircraft part comprises a metal.
- the method makes it possible to remove the metal from the component, without damaging the composite with an organic matrix, in particular without damaging the fibers of said composite.
- the component before the component is removed, the component is fixed to the aircraft part by gluing.
- the component can be attached to the aircraft part by a structural epoxy adhesive, for example.
- a structural epoxy adhesive for example.
- Such a method of fixing would risk, in the event of removal of the component by mechanical tearing, for example, of damaging the fibers of the composite material of the aircraft part.
- the use of the pressurized water jet overcomes this drawback.
- the pressure of the water jet is between 100 and 1000 bars.
- the injected water comprises an abrasive medium.
- the pressure of the water jet used combined with the presence of the abrasive medium, generates a multitude of impacts on the component, these impacts causing the removal of particles of the second material, in particular the metal, which the component comprises.
- the presence of the abrasive media thus makes it possible to improve the efficiency of the component removal process.
- the abrasive media has a particle size of between 50 ⁇ m and 1mm.
- the abrasive medium may comprise solid particles present in the water intended to be injected under pressure, the diameter of these particles being between 50 ⁇ m and 1 mm. Values less than 50pm would limit the efficiency of the removal process, and values greater than 1mm would not be compatible with the pressurized water injection tool used in the context of this process.
- the abrasive media is a sand comprising one of pure silica and silicon carbide.
- the water jet is applied via a nozzle oriented so as to form an angle between +/- 15 ° and +/- 25 °, preferably equal to + / - 20 ° with respect to a normal to a plane tangent to the surface of the component at a point on which the water jet is applied.
- the nozzle and therefore the pressurized water jet applied to the plate, has an angle of between +/- 15 ° and +/- 25 ° , for example an angle of +/- 20 °, for relative to a direction perpendicular to this plate.
- This inclination of the water jet makes it possible to optimize the removal of material from the component, with respect to a situation in which the water jet would be oriented perpendicular to the plate.
- the nozzle applying the water jet is arranged at a distance less than or equal to 20 cm from the component.
- the determination of the thicknesses of the component as a function of the position on the component is carried out by means of ultrasound.
- a scanning of the entire outer surface of the component can for example be performed using a tool emitting ultrasound. At each position of the tool on the surface of the component, a signal transmitted by the ultrasonic emitting tool is converted into thickness.
- This ultrasound analysis can in particular be carried out by echolocation.
- the wear generated on the component is not uniform, so that the thickness of the component, at the time of removal of the latter, n ' itself is not uniform. Determining the thicknesses of the component, as a function of the position on it, by means of ultrasound, thus makes it possible to know the thickness of material to be removed for each of these positions, and thus to adapt the jet of pressurized water according to the thickness to be removed, for example by adapting the pressure of the water jet.
- the speed of movement of the water jet moving on the component is constant, and the pressure of the water jet varies depending on the thickness to remove.
- the thicknesses of the component determined in the determination step are converted into pressures.
- the pressure of the water jet is then reduced.
- the pressure of the water jet is increased.
- the speed of movement of the water jet moving on the component varies depending on the thickness to be removed, the pressure of said water jet being constant.
- the thicknesses of the component determined in the determination step are converted into speeds.
- the displacement speed is then increased.
- the speed of movement of the water jet is reduced, so that the water jet has time to remove the entire thickness of the component at this location.
- the speed of movement and the pressure of the water jet moving on the component vary depending on the thickness to be removed.
- the thicknesses of the component determined in the determination step are converted into pairs of speed / pressure parameters.
- the speed of movement and the pressure of the water jet moving on the component are constant, and the number of passes of the water jet varies according to the thickness to be removed.
- the thicknesses of the component determined in the determination step are converted into the number of passages of the water jet required at a given position, as a function of the thickness at this position.
- a greater thickness at a given location will generate a greater number of necessary passes at that location, and vice versa.
- a suction tool sucks up the material removed during the removal step.
- the device can be placed near the injection nozzle of the water jet, for example less than 10 cm.
- the vacuum tool is used to vacuum up component material debris removed by the water jet during the removal step.
- the water jet moves on the component by means of an articulated tool comprising at least two axes of rotation.
- the water jet moves on the component by means of an articulated tool comprising only two axes of rotation.
- the articulated tool may be a robot comprising at least two arms articulated with respect to one another, the nozzle injecting the water jet being disposed at one end of one of the arms.
- the rotation of the nozzle around two axes of rotation only, by means of the articulated tool, has the advantage of simplifying the removal process, in particular for parts having a complex surface.
- a mechanical machining tool would require rotations around five different axes in order to adapt to this left shape, and to the varying thickness of the component.
- the use of the pressurized water jet makes it possible to limit the number of axes of rotation required, and thus to simplify the removal process.
- the method comprises, after the step of removing, a step of polishing the aeronautical part resulting from the step of removing.
- the polishing step may include manual or mechanized sanding of the residual glue after the removal step. This step makes it possible to even out and smooth the surface of the resulting aircraft part, on which the component that was attached was removed, in order to obtain a level of roughness close to a new part. This makes it possible in particular to facilitate the attachment of a new component to the aircraft part.
- the aircraft part is a fan blade, and the component is the leading edge of the blade.
- the method makes it possible to determine the thicknesses of the metal leading edge as a function of the position on the leading edge, then to remove the leading edge by means of the pressurized water jet, by sparing the fan blade on which the leading edge is fixed, that is to say by limiting the risks of damaging the fibers of the composite with an organic matrix that the blade comprises.
- the implementation of this method using a water jet oriented with the aid of a two-axis robot which sweeps the surface of the leading edge is particularly suited to the left shape of the fan blades.
- This disclosure also relates to a device for removing a component fixed to an aeronautical part, the aeronautical part comprising a first material, and the component comprising a second material different from the first material, the removal device comprising a measuring tool configured to measure the thickness of the component as a function of the position on the component, and a pressurized water injection tool configured to remove the component via the pressurized water jet moving over the component, according to the thicknesses determined by the measuring tool.
- Figure 1 is a schematic perspective view of a turbofan engine
- FIG. 2 is a schematic perspective view of a rotating blade of the fan of the turbojet engine of FIG. 1,
- Figure 3 is a cross-sectional view, along the plane III-III, of the blade of Figure 2,
- FIG. 4 is a schematic view of the removal device according to one embodiment
- FIG. 5 is a detailed schematic view of a removal step by means of the device of Figure 4,
- figure 6 is a cross-sectional view of the blade of figure 4,
- Fig. 7 is a diagram showing the removal process according to the present disclosure.
- FIG. 1 illustrates a bypass turbojet 1 comprising a gas generator group 2 and a fan 3.
- This fan 3 comprises a plurality of rotating blades 4, arranged radially around a central axis X, and aerodynamically profiled so as to impel the air by their rotation.
- each blade 4 has a leading edge, a trailing edge 6, an upper surface 7 and a lower surface 8.
- the relative wind is substantially oriented towards the upstream end, according to the direction of air flow in the fan, of each blade 4.
- This upstream end is particularly exposed to impacts and to the wear.
- the blade 4 comprises a composite material, in particular with a polymer matrix reinforced by fibers, it is therefore necessary to protect this upstream end of the vane 4 with a leading edge 5 fixed to each vane 4.
- the leading edge 5 is a part, or component, attached (e) on the upstream end of the blade 4, according to the direction of air flow in the fan, and following the shape of the upstream end of the vane 4. In other words, the leading edge 5 is assembled on the vane 4. This assembly can be achieved by gluing, by a structural epoxy adhesive for example.
- the leading edge 5 is made of a material having better resistance to point impacts than the composite material of the blade 4. More precisely, the leading edge 5 is mainly metallic, and more specifically made of a titanium-based alloy. , such as for example TA6V (TÎ-6AI-4V).
- the leading edge 5 could also be made of steel or an alloy based on iron, chromium and nickel, for example Inconels®.
- FIG. 3 is a cross-sectional view, along the plane III-III, of the blade of FIG. 2, and illustrates an example of variations in the thickness of the leading edge 5 as a function of the position on the outer surface 5A of the leading edge 5.
- this leading edge 5 When the wear of this leading edge 5 is significant, it is necessary to remove the latter, in order to replace it with a new leading edge.
- This removal is possible by means of a removal device described below with reference to FIG. 4, and comprising an articulated tool 30, for example a robot, the articulated tool 30 comprising at least a first arm 31. fixed to the ground for example, at least a second arm 32 articulated relative to the first arm 31 by means of a first axis of rotation 30A, and a door tool 33 articulated relative to the second arm 32 by means of a second axis of rotation 30B.
- the removal device also comprises a control unit 40 connected to the articulated tool 30, and controlling the movements thereof.
- a measuring tool 20 can be attached to the tool holder 33, and is configured to sense the thicknesses of the leading edge 5.
- the measuring tool 20 can be an ultrasonic thickness gauge.
- the measuring tool 20 is connected to the control unit 40.
- the control unit 40 can be a man-machine interface capable of translating geometric trajectories in machine code line space to control the arms of the machine. articulated tool 30.
- the removal device also comprises a pressurized water injection tool 10.
- the pressurized water injection tool comprises a high pressure pump (not shown), and an injection nozzle 12 , connected to the pump.
- the pressurized water injection tool 10 is configured to inject a stream of water, via the injection nozzle 12, at a pressure of between 100 and 1000 bars.
- the water present in the pump and intended to be injected by the injection nozzle 12 can be mixed with an abrasive medium, having a particle size of between 50 ⁇ m and 1 mm.
- the abrasive media can be pure silica or silicon carbide.
- the water injection tool 10 is connected to the control unit 40. The control unit 40 can thus regulate the pressure of the water injected by the water injection tool 10.
- the water injection nozzle 12 and the measuring tool 20 can be fixed simultaneously to the tool holder 33.
- the water injection nozzle 12 and the measuring tool 20 can be successively fixed to the tool holder 33. More precisely, at the end of the first step of the method described below, the measuring tool 20 can be removed from the tool holder 33 and replaced by the water injection nozzle 12, for the realization of the second step.
- the removal device may also include a suction tool 50 comprising a suction duct 52, one end of which is fixed to the tool holder 33, near the injection nozzle 12.
- the tool for removing. suction 50 can be a vacuum configured to suck up debris and liquid, and having a power between 1500 and 2500 W.
- a first step (step S1) makes it possible to determine the thickness of the leading edge 5 as a function of the position on the latter, that is to say for a given point of the external surface 5A of the edge attack 5.
- step SI the control unit 40 controls the articulated tool 30 so that the measuring tool 20, arranged vis-à-vis the leading edge 5, moves by scanning the whole of the outer surface 5A of the leading edge 5 along a predetermined path, by emitting ultrasound.
- the data measured by the measuring tool 20 is then transmitted to the control unit 40, which converts this data into thicknesses.
- the mapping of the thicknesses of the leading edge 5, that is to say the thickness of the leading edge for each given point on the external surface 5A is known.
- a second step makes it possible to remove the leading edge 5 of the vane 4.
- the control unit 40 converts the thicknesses measured during the first step S1, into pressures .
- the control unit 40 controls the articulated tool 30 so that the water injection nozzle 12, arranged opposite the leading edge 5, moves by sweeping the assembly of the outer surface 5A of the leading edge 5 following the same path as the measuring tool 20 during step S1.
- the injection nozzle 12, arranged on the tool holder 33 moves at a constant speed v0, and the pressure p of water injected by the nozzle 12 varies as a function of the thickness of the edge of attack 5, based on the conversion performed by the control unit 40.
- the debris or particles of the leading edge 5 removed by the water jet J can be sucked up by the suction tool 50, via the suction duct 52 also on the door tool 33.
- the debris suction can be performed at the end of step S2.
- a distance D between the end of the nozzle 12 and each point of contact between the jet J and the external surface 5A of the leading edge 5, remains less than or equal to 20 cm, during the displacement of the nozzle 12.
- an angle b between the jet J and a straight line perpendicular to the plane P tangent to the outer surface 5A at the point of contact between the jet J and the surface 5A, and passing through this point of contact is between +/- 15 ° and +/- 25 °.
- step S2 the scanning of the outer surface 5A of the leading edge 5 by the water jet J is carried out by means of the articulated tool 30, controlled by the control unit 40.
- the control unit 40 controls in particular the axes of rotation 30A and 30B. The control of these two axes of rotation thus makes it possible to position and orient the injection nozzle 12, and therefore the water jet J, relative to the surface 5A.
- the method may include a third step (step S3) making it possible to polish the portion of the surface of the blade 4 on which the leading edge 5 was fixed, after the completion of step S2.
- This polishing can be carried out by manual or mechanical sanding.
- This step S3 makes it possible to clean the residual adhesive seal on the vane 4, in order to find a level of roughness close to the new part, and thus to fix a new leading edge 5 on the vane 4.
- step S2 the control unit 40 can convert the thicknesses measured during step S1, into speeds v of displacement of the nozzle 12.
- the step of removing the edge d The attack is thus effected by a sweeping of the surface 5A by the nozzle 12 at a constant pressure p0, the nozzle 12 moving at a speed varying according to the position on the surface 5A, and on the basis of the conversion carried out by the control unit 40.
- both the speed of movement of the nozzle 12 and the pressure of the water jet J can vary depending on the thickness of the leading edge 5.
- the determined thicknesses in step SI are converted into a speed / pressure pair (v, p).
- the removal step can also be carried out at constant speed and pressure.
- the removal thicknesses determined in step S1 are converted into the number of passes, that is to say the number of passes of the water jet J necessary, at constant speed vO and pressure pO, for a given point of the surface 5A, as a function of the thickness of the leading edge 5 at this point.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Architecture (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Turning (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1912950A FR3103126B1 (fr) | 2019-11-20 | 2019-11-20 | Dispositif et procédé améliorés d’usinage de pièce aéronautique |
| PCT/FR2020/052086 WO2021099722A1 (fr) | 2019-11-20 | 2020-11-16 | Dispositif et procédé d'usinage d'une aube de soufflante |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4062032A1 true EP4062032A1 (fr) | 2022-09-28 |
| EP4062032B1 EP4062032B1 (fr) | 2025-04-23 |
Family
ID=69375617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20823895.6A Active EP4062032B1 (fr) | 2019-11-20 | 2020-11-16 | Procédé d'enlèvement d'un bouclier de bord d'attaque fixé à une aube de soufflante et ensemble comprenant une aube de soufflante, un bouclier de bord d'attaque fixé à l'aube de soufflante, et un dispositif d'enlèvement du bouclier |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220403747A1 (fr) |
| EP (1) | EP4062032B1 (fr) |
| CN (1) | CN114867929B (fr) |
| FR (1) | FR3103126B1 (fr) |
| WO (1) | WO2021099722A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4363161A4 (fr) * | 2021-06-29 | 2025-05-07 | Shape Technologies Group, Inc. | Systèmes à jet de fluide et procédés d'utilisation pour avoir accès à des composants dangereux et pour les désassembler |
| FR3163593A1 (fr) | 2024-06-25 | 2025-12-26 | Safran Aircraft Engines | Procede de traitement d’une piece de turbomachine realisee en materiau composite |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19529749C2 (de) * | 1995-08-12 | 1997-11-20 | Ot Oberflaechentechnik Gmbh | Verfahren zum schichtweisen Abtragen von Material von der Oberfläche eines Werkstückes sowie Vorrichtung zur Durchführung dieses Verfahrens |
| EP1219728A1 (fr) * | 2000-12-27 | 2002-07-03 | Siemens Aktiengesellschaft | Procédé de décapage d'un aube de turbine |
| US7544112B1 (en) * | 2006-12-13 | 2009-06-09 | Huffman Corporation | Method and apparatus for removing coatings from a substrate using multiple sequential steps |
| US9003936B2 (en) * | 2011-07-29 | 2015-04-14 | Flow International Corporation | Waterjet cutting system with standoff distance control |
| JP6000025B2 (ja) * | 2012-08-30 | 2016-09-28 | 株式会社不二製作所 | スクライブ加工方法及びスクライブ加工用のブラスト加工装置 |
| US8720526B1 (en) * | 2012-11-13 | 2014-05-13 | Siemens Energy, Inc. | Process for forming a long gas turbine engine blade having a main wall with a thin portion near a tip |
| FR3025735B1 (fr) * | 2014-09-17 | 2016-12-09 | Europe Tech | Procede de traitement d'une piece composite |
| US10683805B2 (en) * | 2015-07-30 | 2020-06-16 | Safran Aircraft Engines | Anti-icing system for a turbine engine vane |
| DE102015113467A1 (de) * | 2015-08-14 | 2017-02-16 | Sami Haddadin | Roboterarm und Roboterhandgelenk |
| FR3045713B1 (fr) * | 2015-12-21 | 2020-09-18 | Snecma | Bouclier de bord d'attaque |
| US10065313B2 (en) * | 2016-12-07 | 2018-09-04 | Harris Corporation | Robot manipulator system |
| US20180216464A1 (en) * | 2017-01-31 | 2018-08-02 | General Electric Company | Method of repairing a blisk |
| FR3084400B1 (fr) * | 2018-07-24 | 2021-05-07 | Safran Aircraft Engines | Aube de turbomachine comportant un renfort structurel a adherence renforcee |
| CN110053060A (zh) * | 2019-05-21 | 2019-07-26 | 中国铁建重工集团股份有限公司 | 一种冲洗观察机械臂 |
-
2019
- 2019-11-20 FR FR1912950A patent/FR3103126B1/fr active Active
-
2020
- 2020-11-16 CN CN202080088012.8A patent/CN114867929B/zh active Active
- 2020-11-16 US US17/756,228 patent/US20220403747A1/en active Pending
- 2020-11-16 WO PCT/FR2020/052086 patent/WO2021099722A1/fr not_active Ceased
- 2020-11-16 EP EP20823895.6A patent/EP4062032B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114867929B (zh) | 2025-05-27 |
| FR3103126A1 (fr) | 2021-05-21 |
| CN114867929A (zh) | 2022-08-05 |
| EP4062032B1 (fr) | 2025-04-23 |
| FR3103126B1 (fr) | 2022-03-25 |
| US20220403747A1 (en) | 2022-12-22 |
| WO2021099722A1 (fr) | 2021-05-27 |
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