Tooling for local repair or remanufacturing of an edge of a composite material part

Abstract

Tool for local repair or remanufacturing of an edge of a part made of composite material The invention relates to a tool (200, 300) for local repair or remanufacturing of an edge of a part (400) made of composite material, the tool comprising a first block (100a, 200a) and a second block (100b, 200b) movable relative to each other between an open position and a closed position, each block having a central portion (102a, 102b, 232a, 232b) and a peripheral portion (103a, 103b, 233a, 233b), the central portions of the blocks together defining a housing (105, 230) in the closed position, the housing being intended to accommodate a damaged portion of an edge of a part to be repaired, the peripheral portions of each of the blocks being in contact with each other in the closed position, the tooling further comprising at least one heating element (110a, 110b) configured to heat the housing,and at least one injection channel opening into said housing. Figure for the abstract: Fig1.,

Description

Title of the invention: Tool for local repair or remanufacturing of an edge of a part made of composite material Technical field

[0001] The present invention relates to the field of repair with or without disassembly or of the resumption of manufacture of parts made of composite material and more particularly that of an edge of such parts such as propeller blades or blades made of composite material to be produced under the wing, in a repair factory or in a production factory. Prior art

[0002] During handling operations during manufacturing or during use in operation, the edge of composite material parts, such as for example the trailing edge of the blades and / or the tip of the composite material blades, may be damaged. The usual methods for repairing composite material parts consist of depositing a resin in the damaged area, removing the excess resin and polymerizing the assembly in a vacuum oven. These methods are implemented manually and on a non-industrial scale.

[0003] The resin is generally deposited by flow, which makes it difficult to control the amount of resin applied to the damaged area. Other techniques propose applying the resin to the damaged area using a brush. While this solution improves control of the amount of resin applied, it significantly lengthens the repair time. In addition, air bubbles can become trapped in the resin when it is applied, creating porosities in the damaged area.

[0004] Regardless of the solution used, it is also necessary to remove excess resin. Therefore, sanding or polishing the repaired part is generally carried out. This step can be tricky to implement because it risks damaging the underlying substrates of the part.

[0005] The polymerization of the part can be done under vacuum in an oven or an autoclave. The vacuum is generally achieved using a vacuum cover, seals and silicone. This polymerization technique has the disadvantage of requiring heating of the entire part, which can cause damage to the undamaged parts of it. This is the case, for example, when the part is coated with paint. In addition, the need to heat the entire part increases the cost of repair from an energy and economic point of view.

[0006] Other methods propose an arrangement of pre-impregnated patches on the damaged parts of the part.

[0007] The methods of the prior art have the disadvantage of not being able to be implemented under the wing, that is to say when the part such as a blade or a propeller blade are in service on the aircraft. Indeed, the part to be repaired is generally dismantled and sent to a repair factory.

[0008] Similarly, the methods of the prior art cannot be implemented in a repair plant or in a production plant. In a production plant, they require the mobilization of all the means required in production such as an oven, an impregnation chamber, etc. Their implementation in a production plant is problematic because it implies that certain equipment is no longer available for the production of parts during repairs. Their implementation is also not possible in a repair plant because the necessary equipment is generally not present in these installations.

[0009] Thus, there is a real need to carry out a repair or a resumption of manufacturing of composite material parts under the wing, in a repair factory or in a production factory, and this, without the drawbacks inherent in the aforementioned known processes. Statement of the invention

[0010] To this end, the invention proposes a tool for local repair or remanufacturing of an edge of a part made of composite material, characterized in that it comprises a first block and a second block movable relative to each other between an open position and a closed position, each block having a central portion and a peripheral portion, the central portions of the blocks together defining a housing in the closed position, the housing being intended to accommodate a damaged portion of an edge of a part to be repaired, the peripheral portions of each of the blocks being in contact with each other in the closed position, the tool further comprising at least one heating element configured to heat the housing, and at least one injection channel opening into said housing.

[0011] Such a tool makes it possible to repair an edge of an aircraft engine part such as a blade or propeller blade edge directly under the wing, or in a repair factory or even in a production factory, simply and quickly. This is possible thanks to the configuration of the tool and its small size. Indeed, the tool can be positioned on the area to be repaired without needing to dismantle the part such as for example a blade or a propeller blade to carry out the repair. Such a tool also makes it possible to carry out a repair more economically and more quickly than with the solutions of the prior art. Indeed, such a tool does not require not the mobilization of the means used for the manufacture of the parts. Similarly, the injection of the resin and the heat treatment take place locally on the damaged part. The process is less time-consuming because it avoids interventions on the part such as applying the resin with a brush on the damaged part, putting the entire part under vacuum, or heating the entire part.

[0012] According to another particular characteristic, the tooling may further comprise at least one clamp holding the peripheral part of the first block in contact with the peripheral part of the second block in the closed position.

[0013] Such a clamp makes it possible to apply pressure to the two blocks of the tool, thus facilitating maintenance in the closed position.

[0014] According to another particular characteristic, the tooling may comprise at least one heating element present inside the first block and / or the second block.

[0015] Thus, it is possible to further reduce the size and weight of the tool, to optimize the heating of the housing accommodating the part of the damaged edge. Indeed, such a configuration makes it possible to reduce the thickness of the material of the block to be heated before reaching the housing. Similarly, the fact that the heating element is placed inside the block makes it possible to reduce the mass of at least one of the blocks and consequently the mass of the tool.

[0016] According to a particular characteristic of the tooling, at least one heating element may be present inside the first block and the second block.

[0017] Thus, it is possible to have homogeneous heating on both sides of the edge of the part when the edge needs to be repaired on each side or across the entire thickness.

[0018] According to a particular characteristic of the tooling, the first block may comprise a first groove extending between an external edge and an internal edge of the peripheral part of said first block while the second block may comprise a second groove extending between an external edge and an internal edge of the peripheral part of said second block, the first groove and the second groove cooperating, in the closed position, to form an evacuation channel opening into the housing.

[0019] Thus, it is possible to facilitate the removal of any excess resin injected into the housing.

[0020] According to a particular characteristic, the tool may further comprise at least one first damping plate arranged inside the housing. Such a plate facilitates the absorption of the pressure applied when closing the tool and therefore makes it possible to further protect the part of the edge of the part to be repaired.

[0021] According to a particular characteristic, the tool may further comprise at least one first removable part arranged inside the central part of the first block and at least one second removable part arranged inside the central part of the second block, the first and second removable parts together defining in the closed position a determined shape of a part of an edge of a part to be repaired.

[0022] Such removable parts make it possible to adapt the shape of the housing imprint to different edge shapes. Each removable part has a determined shape of a portion of one side of an edge of the part. Similarly, the first removable part and the second removable part define, in the closed position of the tool, a determined thickness of a portion of an edge of a part. These removable parts are interchangeable depending on the dimensions and shape of the portion of the part to be repaired. Thus, a single tool can be used to repair the edges of different models of parts.

[0023] According to a particular characteristic, the tooling may further comprise a first damping plate arranged inside the housing on the first removable part, and a second damping plate inside the housing on the second removable part.

[0024] According to another of its aspects, the invention proposes a method for locally repairing or remanufacturing an edge of a part made of composite material, characterized in that it comprises the use of local repair tools according to the invention and in that it comprises the following steps: - a step of maintaining a damaged part of an edge of a part inside the housing defined by the central parts of the first block and the second block, - the injection of a resin into the housing by at least one injection channel, - the heat treatment of polymerization of the resin by said at least one heating element of the housing.

[0025] According to a particular characteristic of the method, the method may further comprise a step of clamping by a clamp the peripheral part of the first block against the peripheral part of the second block in the closed position.

[0026] Such a step makes it easier to keep the tool in the closed position. Brief description of the drawings

[0027] Other characteristics and advantages of the present invention will emerge from the description given below, with reference to the appended drawings which illustrate an exemplary embodiment thereof without any limiting character.

[0028] [Fig-1] [Fig.l] schematically represents a tool in the open position in accordance with one embodiment,

[0029] [Fig.2] [Fig.2] schematically represents the tooling of [Fig.l] in position of closing,

[0030] [Fig.3] [Fig.3] schematically represents blocks of the tooling of [Fig.l],

[0031] [Fig.4] [Fig.4] is a partial sectional view of the tooling of [Fig.l] along direction IV-IV of [Fig.2],

[0032] [Fig.5] [Fig.5] schematically represents a tool according to another embodiment,

[0033] [Fig.6a] [Fig.6a] schematically represents the first block of the tooling of [Fig.5] when it is without removable part,

[0034] [Fig.6b] [Fig.6b] schematically represents the first block of the tooling of [Fig.5] when it includes a removable part,

[0035] [Fig.6c] [Fig.6c] schematically represents the first block of the tooling of [Fig.5] when it includes a damping plate.

[0036] [Fig.6d] [Fig.6d] schematically represents the second block of the tooling of [Fig.5] when it is without removable part,

[0037] [Fig.6e] [Fig.6e] schematically represents the second block of the tooling of [Fig.5] when it includes a removable part,

[0038] [Fig.6f] [Fig.6f] schematically represents the second block of the tooling of [Fig.5] when it includes a damping plate.

[0039] [Fig.7] [Fig.7] is a partial sectional view of the tooling of [Fig.5] along direction VILVII of [Fig.5]. Description of the embodiments

[0040] The invention applies generally to the repair or remanufacturing of an edge of a part made of composite material, in particular but not exclusively an edge of a blade or propeller blade made of composite material. It uses specific tooling 300 which will be described here in relation to the repair of a blade made of composite material.

[0041] [Fig.l] illustrates a tool 300 in the open position and [Fig.2] illustrates the same tool 300 in the closed position. The tool 300 is intended to repair a blade 400 comprising a damaged part 401.

[0042] The tool 300 comprises a first block 100a and a second block 100b. Each block is movable relative to one another, between an open position illustrated in [Fig. 1] and a closed position illustrated in [Fig. 2]. In other words, the first block 100a and the second block 100b move from an open position in which they are spaced apart from one another to a closed position in which they are in contact with one another.

[0043] [Fig. 3] illustrates the blocks of the tooling 300. As illustrated in [Fig. 3], the first block 100a has a central portion 102a and a peripheral portion 103a. Similarly, the second block 100b has a central portion 102b and a peripheral portion 103b. The central portion 102a of the first block 100a comprises a first imprint 104a which has the shape of an intrados side of an edge 400 of a blade, as illustrated in the sectional view of the tooling 300 in [Fig. 4]. The central portion 102b of the second block 100b comprises a second imprint 104b which has the shape of an extrados side of an edge 400 of a blade ([Fig. 4]).

[0044] [Fig. 4] illustrates a sectional view of the tool 300 along the direction IV-IV. As illustrated in [Fig. 4], when the tool 300 is in the closed position, the central parts 102a and 102b together define a housing 105. The housing 105 extends, along a thickness direction Z of the tool 300, between the first imprint 104a of the first block 100a and the second imprint 104b of the second block 100b.

[0045] The peripheral portion 103a of the first block 100a comprises a first face 106a and the peripheral portion 103b of the second block 100b comprises a second face 106b. When the tool 300 is in the closed position, the first face 106a of the peripheral portion 103a of the first block 100a is in contact with the second face 106b of the peripheral portion 103b of the second block 100b. The height of the housing 105 measured along the thickness direction Z corresponds to the sum of a first height, along the thickness direction Z, separating the first impression 104a from the first face 106a, with a second height, along the thickness direction Z, separating the second impression 104b from the second face 106b.

[0046] The housing 105 is intended to accommodate a damaged portion of an edge of a blade 400 to be repaired. The height of the housing 105 may be greater than or equal to the thickness of the portion of the edge of the blade 400 to be repaired. In the example illustrated in [Fig. 4], the housing 105 comprises a height greater than the thickness of the portion to be repaired 401 of the edge of the blade 400. A portion of the height of the housing 105 is filled by two damping plates 1050a and 1050b respectively in contact with the first imprint 104a of the central portion 102a of the first block 100a and with the second imprint 104b of the central portion 102b of the second block 100b. The damping plates 1050a and 1050b may comprise silicone.

[0047] The arrangement of damping plates 1050a and 1050b inside the housing 105 is optional. For example, in an embodiment which is not the one illustrated, the housing 105 may be without a damping plate. In this case, the height of the housing 105 may be equal to the thickness of the portion of the edge of the blade 400 to be repaired. According to another embodiment which is not the one illustrated, a single damping plate may be present inside the housing 105. In the case of the arrangement of one or more damping plates in the housing 105, the height of the housing 105 corresponds to the cumulative thickness of the damping plate(s) and of the part of the edge of the blade 400 to be repaired.

[0048] When the tool 300 is in the closed position, as illustrated in [Fig. 2], the peripheral portion 103a of the first block 100a is in contact with the peripheral portion 103b of the second block 100b, which makes it possible to form a seal between the face 106a of the peripheral portion 103a of the first block 100a and the face 106b of the peripheral portion 103b of the second block 100b.

[0049] The first block 100a and the second block 100b may be made of a material having a melting temperature greater than 150°C and inert with respect to a resin.

[0050] According to a particular characteristic of the tool 300, the first block 100a and the second block 100b may be made of an epoxy resin having a melting temperature greater than or equal to 150°C.

[0051] According to another particular characteristic of the tooling 300, the first block 100a and the second block 100b may be made of a metallic material having a melting temperature greater than 180°C. According to a particular characteristic of the tooling 300, the material of the first block 100a and the second block 100b may be chosen from aluminum, steel and titanium.

[0052] The tooling 300 further comprises at least one heating element configured to heat the housing 105.

[0053] In the example illustrated in Figures 1 to 3, the tool 300 comprises several heating elements, namely two first heating elements 110a and two second heating elements 110b. The first heating elements 110a are present inside the first block 100a and the second heating elements 110b are present inside the second block 100b.

[0054] The presence of a plurality of heating elements 110a and 110b respectively inside the first block 100a and the second block 100b makes it possible to accelerate the heating of the housing and to homogenize the heat within the housing 105. Nevertheless, in an embodiment which is not that illustrated, the first block 100a may comprise a single heating element 110a and the second block 100b may comprise a single heating element 110b.

[0055] The number of heating elements 110a, 110b is not limiting. Indeed, when only one intrados or extrados side of the part of the edge of the blade is damaged, only the block 100a or 100b located on the side to be repaired comprises one or more heating elements. Thus, it is possible to locally heat the side of the part of the edge of the blade to be repaired without unnecessarily heating the other opposite side of the edge of the blade.

[0056] According to a particular characteristic of the tooling 300, each heating element 110a, 110b comprises a cylindrical shape as illustrated in [Fig.4]. Such a shape facilitates the machining of the blocks of the tool 300 to accommodate the heating element 110a or 110b.

[0057] The heating element 110a or 110b further comprises a gripping rod 111a, 111b as illustrated in [Fig.2]. This facilitates the positioning of the heating element inside the tool blocks 100a and 100b. The gripping rod 111a, 111b is made of a thermally insulating material. This feature facilitates the handling of the heating element when it is hot.

[0058] The tool 300 further comprises at least one injection channel 150 opening into the housing 105. Such an injection channel 150 allows the injection of a resin into the housing 105. The injection channel 150 comprises a piston 151 injecting the resin into the injection channel 150. Such a piston facilitates the introduction of the resin through the injection channel 150. This configuration offers in particular the possibility of injecting resin on the damaged side of the blade while the other side is not damaged. In an embodiment which is not that illustrated, the tool may comprise a syringe instead of the piston 151 or any other device for injecting a resin.

[0059] In the example illustrated in Figures 1 and 3, the tool 300 comprises an injection channel 150 extending through the second block 100b. The injection channel 150 passes through the second block 100b in a thickness direction Z and a first of its ends opens into the housing 105.

[0060] The number of injection channels is not limiting. Thus, in one embodiment, the first block 100a and the second block 100b may each be provided with a resin injection channel. In another embodiment, the first block 100a may comprise a plurality of injection channels and the second block 100b may comprise a plurality of injection channels. In yet another embodiment, the first block 100a or the second block 100b may comprise a plurality of injection channels.

[0061] In the example illustrated in Figures 1 and 4, the tool 300 further comprises a clamp 600. The clamp 600 holds the peripheral portion 103a of the first block 100a in contact with the peripheral portion 103b of the second block 100b. The clamp 600 applies a determined pressure to the first block 100a and the second block 100b to hold the peripheral portion 103a of the first block 100a in contact with the peripheral portion 103b of the second block 100b. Thus, it is possible to facilitate holding the tool in a closed position.

[0062] The tool 300 further comprises an evacuation channel 160 formed by a first groove 161a and a second groove 161b (Figures 3 and 4). The first groove 161a is formed on the face 106a of the first block 100a which is in contact with the face 106b of the second block 100b when the tool 300 is in the closed position. The second groove 161b is formed on the face 106b of the second block 100b which is in contact of the first block 100a when the tool 300 is in the closed position. The first groove 161a extends between an inner edge 113a and an outer edge 123a of the first block 100a, the inner edge 113a of the first block 100a delimiting a first part of the housing 105, and the outer edge 123a of the first block 100a delimiting the outer contour of the first block 100a. The second groove 161b extends between an inner edge 113b and an outer edge 123b of the second block 100b, the inner edge 113b of the second block 100b delimiting a second part of the housing 105, and the outer edge 123b of the second block 100b delimiting the outer contour of the second block 100b. When the tool 300 is in the closed position, the first groove 161a cooperates with the second groove 161b to form the cylindrical discharge channel 160. The discharge channel 160 opens into the housing 105. Such a channel facilitates the removal of any excess resin injected into the housing.

[0063] The number of evacuation channels 160 is not limiting of the invention. Several evacuation channels 160 can be arranged between the first block 100a and the second block 100b.

[0064] The discharge channel 160 comprises a closure plug 162 partially housed in the discharge channel 160 when the discharge channel 160 is in the closed position as illustrated in FIGS. 2 and 4. When the resin is injected into the housing 105, the plug 162 can be removed from the discharge channel 160 to thus allow the exit of any excess resin.

[0065] Figures 5, 6 and 7 illustrate a second exemplary embodiment of the tooling. This embodiment differs from that described in Figures 1 to 4 in that the tooling 200 is adaptable to different blade sizes and shapes.

[0066] In this embodiment, the first block 200a has a central portion 232a and a peripheral portion 233a. Similarly, the second block 200b has a central portion 232b and a peripheral portion 233b. The central portion 232a of the first block 200a comprises a first cavity 237a shaped to receive a first removable part 234a as illustrated in [Fig.6b]. The central portion 232b of the second block 100b comprises a second cavity 237b shaped to receive a second removable part 234b as illustrated in [Fig.6d].

[0067] As illustrated in [Fig.6b], a first removable part 234a is disposed in the first cavity 237a of the central portion 232a of the first block 200a. A second removable part 234b is disposed in the second cavity 237b of the central portion 232b of the second block 200b as illustrated in [Fig.6e]. When the tool 200 is in the closed position, the first removable part 234a and the second removable part 234b together define a housing 230 having a determined shape of a portion of the blade, as illustrated in [Fig.7].

[0068] Such a configuration of the tool 200 makes it possible to use the same tool for the repair of different shapes and sizes of blade. Indeed, it is sufficient to change the removable parts 234a and 234b so that the tool 200 is adapted to the repair of another shape or size of blade.

[0069] The height of the housing 230 may be greater than or equal to the thickness of the portion of the edge of the blade 400 to be repaired. In the example illustrated in [Fig.7], the housing 230 comprises a height greater than the thickness of the portion of the edge of the blade 400 to be repaired. In the example illustrated, the height of the housing 230 is partially filled by two damping plates 2350a and 2350b. A first damping plate 2350a is arranged on the first removable part 234a and a second damping plate 2350b is arranged on the second removable part 234b as illustrated in FIGS. 6c and 6f respectively. The first damping plate 2350a is in contact with a first face 2341a of the first removable part 234a and the second damping plate 2350b is in contact with a second face 2341b of the second removable part 234b. The damping plates 2350a and 2350b may comprise silicone.

[0070] The arrangement of damping plates inside the housing 230 is optional. For example, in an embodiment which is not the one illustrated, the housing 230 may be without a damping plate. In this case, the height of the housing 230 may be equal to the thickness of the portion of the edge of the blade 400 to be repaired. According to another embodiment which is not the one illustrated, a single damping plate is present inside the housing 230. In this case, the height of the housing 230 may correspond to the cumulative thickness of the damping plate and the portion of the edge of the blade 400 to be repaired.

[0071] The tool 200 illustrated in Figures 5, 6 and 7 further comprises at least one injection channel 270 opening into the housing 230. Such an injection channel 270 allows the injection of a resin into the housing 230. The injection channel 270 comprises a piston 271 injecting the resin into the injection channel 270. The piston 271 is capable of pushing the resin through the injection channel 270. Such a piston 271 facilitates the introduction of the resin through the injection channel 270 and consequently the distribution of the resin into the housing 230. In an embodiment which is not that illustrated, the tool may comprise a syringe instead of the piston 271.

[0072] In [Fig. 7], the tool 300 comprises an injection channel 270 formed inside the second block 200b. The injection channel 270 passes through the second block 200b, in a thickness direction Z, and a first of its ends opens into the housing 230. The injection channel 270 is positioned in the center of the second block 200b in a plane perpendicular to the thickness direction Z of the tool 200. Such an arrangement facilitates a homogeneous distribution of the resin in the housing 230.

[0073] An example of the method for local repair of a blade edge made of composite material is now described. The method is implemented by the tooling described previously. In a first step, the part of the edge of a blade to be repaired is held inside the housing 105 or 230 (FIGS. 2 and 5).

[0074] The method is then followed by a step of injecting a resin into the housing 105 or 230.

[0075] According to a particular characteristic of the method, the injection of the resin is carried out by a piston 151, respectively 271, through the injection channel 150, respectively 270. Nevertheless, other injection modes can be used.

[0076] Examples of resins that may be used are polyester resins, epoxy resins, and phenolic resins.

[0077] The process is then followed by a heat treatment step for polymerizing the resin, implemented for example by means of the heating element(s) described above. The polymerization process is carried out at a temperature between 25°C and 200°C.

[0078] The process is followed by a demolding step during which the repaired blade edge portion is removed from the tooling.

[0079] The first step, namely the step of holding the damaged portion of the edge in the housing, may be preceded by a step of positioning one or more damping plates inside the housing. This step facilitates the absorption of the pressure applied when closing the tool and therefore makes it possible to further protect the portion of the edge of the blade to be repaired.

[0080] The step of positioning one or more damping plates may be preceded by a step of positioning a first removable part inside the central part of the first block and a second removable part inside the central part of the second block.

[0081] The method further comprises a step of clamping the peripheral portion of the first block against the peripheral portion of the second block. The clamping may be carried out with a clamping device such as the clamp 600 illustrated in FIGS. 1 and 5. Other clamping devices may also be envisaged.

Claims

Claims

1. Tool (200, 300) for local repair or remanufacturing of an edge of a part (400) made of composite material, characterized in that it comprises a first block (100a, 200a) and a second block (100b, 200b) movable relative to each other between an open position and a closed position, each block having a central portion (102a, 102b, 232a, 232b) and a peripheral portion (103a, 103b, 233a, 233b), the central portions of the blocks together defining a housing (105, 230) in the closed position, the housing being intended to accommodate a damaged portion of an edge of a part to be repaired, the peripheral portions of each of the blocks being in contact with each other in the closed position, the tool further comprising at least one element of heater (110a, 110b) configured to heat the housing, and at least one injection channel opening into said housing.

2. Tooling according to claim 1, further comprising at least one clamp (600) holding the peripheral portion (103a, 233a) of the first block (100a, 200a) in contact with the peripheral portion (103b, 233b) of the second block (100b, 200b) in the closed position.

3. Tooling according to claim 1 or 2, wherein said at least one heating element (110a, 110b) is present inside the first block (100a, 200a) or the second block (100b, 200b).

4. Tooling according to any one of claims 1 to 3, wherein at least one heating element (110a, 110b) is present inside the first block (100a, 200a) and the second block (100b, 200b).

5. Tooling according to any one of claims 1 to 4, wherein the first block (100a) comprises a first groove (161a) extending between an outer edge and an inner edge of the peripheral portion of said first block (100a) and wherein the second block (100b) comprises a second groove (161b) extending between an outer edge and an inner edge of the peripheral portion of said second block (100b), the first groove (161a) and the second groove (161b) cooperating in the closed position to form an evacuation channel opening into the housing.

6. Tooling according to any one of claims 1 to 5, further comprising at least one first damping plate (1050a, 1050b, 2350a, 2350b) disposed inside the housing (105, 230).

7. Tooling according to any one of claims 1 to 6, further comprising at least one first removable part (234a) arranged inside the central part of the first block (200a) and at least one second removable part (234b) arranged inside the central part of the second block (200b), the first and second removable parts together defining in the closed position a determined shape of a part of an edge of a part (400) to be repaired.

8. The tooling of claim 7, further comprising a first damping plate (2350a) disposed inside the housing on the first removable part (134a), and a second damping plate (2350b) inside the housing (230) on the second removable part (134b).

9. Method for locally repairing or remanufacturing an edge of a part (400) made of composite material, characterized in that it comprises the use of a local repair tool according to any one of claims 1 to 8 and in that it comprises the following steps: - a step of holding a damaged part of a part edge (400) inside the housing (105, 230) defined by the central parts of the first block (100a, 200a) and the second block (100b, 200b), - injecting a resin into the housing (105, 230) by at least one injection channel (150, 270), - the heat treatment for polymerization of the resin by said at least one heating element (110a, 110b) of the housing (105, 230).

10. The method of claim 9, further comprising a step of clamping by a clamp (600) the peripheral portion (103a, 233a) of the first block (100a, 200a) against the peripheral portion (103b, 233b) of the second block (100b, 200b) in the closed position.

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