Tool for locally repairing or restoring manufacturing of edges of parts made of composite material

Abstract

The invention relates to a tool (200, 300) for the local repair or the manufacturing recovery of an edge of a part (400) made of composite material, said tool comprising a first unit (100a, 200a) and a second unit (100b, 200b) movable relative to each other between an open position and a closed position, each unit having a central portion (102a, 102b, 232a, 232b) and a peripheral portion (103a, 103b, 233a, 233b), in said closed position, the central portions of said units defining jointly a containment cavity (105, 230) for receiving a damaged portion of the edge of the part to be repaired, in said closed position, the peripheral portions of each of said units being in contact with each other, said tool further comprising at least one heating element (110a, 110b) configured to heat said containment cavity, and at least one injection channel opening into said containment cavity.

Description

Technical Field

[0001] This invention relates to the field of repair (whether disassembled or not) or restoration manufacturing of components made of composite materials, and more specifically, to the repair or restoration manufacturing of the edges of such components, such as stator blades or propeller blades made of composite materials, in underwings, repair shops or manufacturing plants. Background Technology

[0002] During lifting and handling operations in the manufacturing process or during operation, the edges of components made of composite materials (such as the trailing edge and / or tip of a composite stator blade) may be damaged. Common methods for repairing components made of composite materials include applying resin to the damaged area, removing excess resin, and curing the entire component in a furnace under vacuum conditions. These methods are carried out manually and on a non-industrial scale.

[0003] Resin is typically applied via dripping, making it difficult to control the amount applied to the damaged area. Other techniques propose using a brush to apply resin to the damaged area. While this improves control over the amount of resin applied, it significantly prolongs the repair time. Furthermore, air bubbles may become trapped in the resin during application, creating pores in the damaged area.

[0004] Regardless of the method used, excess resin needs to be removed. Therefore, the repaired part is usually sanded or ground. This step can be difficult to perform because there is a risk of damaging the underlying substrate of the part.

[0005] Component curing can be performed under vacuum conditions in an oven or autoclave. A vacuum is typically created using a vacuum bag membrane, a sealant, and silicone. A disadvantage of this curing technique is that it requires heating the entire component, which can damage undamaged parts. This damage can occur, for example, if the component is coated with paint. Furthermore, from an energy and economic perspective, heating the entire component increases repair costs.

[0006] Other methods propose placing pre-impregnated patches on the damaged parts of the component.

[0007] The existing methods have the following drawbacks: they cannot be performed under the wings, meaning they cannot be performed while components such as stator blades or propeller blades are in service with the aircraft. Specifically, the component to be repaired is usually removed and sent to a repair shop.

[0008] Similarly, existing methods cannot be implemented in repair shops or manufacturing plants. In manufacturing plants, these methods require all the equipment needed for production, such as ovens and impregnation chambers. Implementing these methods in manufacturing plants is problematic because it would render some equipment unusable for part production during repairs. Since repair shops typically lack the necessary equipment, these methods cannot be implemented there either.

[0009] Therefore, it is indeed necessary to repair or remanufacture components made of composite materials under the wing, in repair shops, or in manufacturing plants, while avoiding the inherent drawbacks of the known methods described above. Summary of the Invention

[0010] To this end, the present invention proposes a tool for locally repairing or restoring the edges of components made of composite materials, characterized in that the tool comprises a first unit and a second unit movable relative to each other between an open position and a closed position, each unit having a central portion and a peripheral portion, wherein in the closed position, the central portions of the units collectively define a receiving cavity for receiving a damaged portion of the edge of the component to be repaired, and in the closed position, the peripheral portions of each unit contact each other, the tool further comprising: at least one heating element configured to heat the receiving cavity, and at least one injection channel leading to the receiving cavity.

[0011] This tool enables simple and rapid repair of aircraft engine component edges, such as stator blade edges or propeller blade edges, directly under the wing, in repair shops, or at manufacturing plants. This is thanks to the tool's configuration and small size. Specifically, the tool can be positioned on the area to be repaired without disassembling components such as stator blades or propeller blades. Compared to existing solutions, this tool also allows for repairs in a less costly and faster manner. This is because the tool does not require the equipment used for component manufacturing. Similarly, resin injection and heat treatment are performed locally on the damaged area. Since operations such as applying resin to the damaged area with a brush, vacuuming the entire component, or heating the entire component are avoided, this method requires less time.

[0012] According to another specific feature, the tool may also include at least one clamp that, in the closed position, keeps the peripheral portion of the first unit in contact with the peripheral portion of the second unit.

[0013] This clamp can apply pressure to both units of the tool, thereby facilitating the holding of the tool in the closed position.

[0014] According to another specific feature, the tool may include at least one heating element located inside the first unit and / or the second unit.

[0015] This allows for a further reduction in the size and weight of the tool, and optimizes heating of the receiving cavity that accommodates the damaged edge portion. Specifically, this configuration reduces the thickness of the unit material that needs to be heated before heat is transferred to the receiving cavity. Similarly, placing the heating element inside the unit reduces the mass of at least one unit, thereby reducing the mass of the tool.

[0016] According to a specific feature of the tool, at least one heating element may be disposed inside the first unit and the second unit.

[0017] Therefore, when it is necessary to repair the two sides or the entire thickness of the edge of a component, the two sides of the edge can be heated evenly.

[0018] According to a specific feature of the tool, the first unit may include a first groove extending between the outer edge and the inner edge of the peripheral portion of the first unit, and the second unit may include a second groove extending between the outer edge and the inner edge of the peripheral portion of the second unit, wherein in the closed position, the first groove and the second groove cooperate to form a discharge channel leading to the receiving cavity.

[0019] This makes it easy to remove any excess resin injected into the cavity.

[0020] According to a particular feature, the tool may further include at least one first buffer plate disposed within the receiving cavity. This buffer plate helps absorb pressure applied during tool closure, thereby further protecting the edge portions of the component to be repaired.

[0021] According to a specific feature, the tool may further include: at least one first removable portion disposed inside the central portion of the first unit, and at least one second removable portion disposed inside the central portion of the second unit, wherein in the closed position, the first removable portion and the second removable portion together define a given shape of the edge portion of the component to be repaired.

[0022] This removable portion allows the cavity shape to adapt to different edge shapes. Each removable portion has a given shape for a portion of one side of the component edge. Similarly, in the closed position of the tool, the first and second removable portions define a given thickness for a portion of the component edge. These removable portions can be replaced according to the size and shape of the removable portions of the component to be repaired. Therefore, a single tool can be used to repair the edges of components of different models.

[0023] According to a specific feature, the tool may further include: a first buffer plate disposed on the first removable portion inside the receiving cavity, and a second buffer plate disposed on the second removable portion inside the receiving cavity.

[0024] According to another aspect of the present invention, a method for locally repairing or restoring the manufacturing of edges of components made of composite materials is provided, characterized in that the method includes using a locally repair tool according to the present invention, and includes the following steps:

[0025] - The damaged portion of the component edge is held within the receiving cavity defined by the central portion of the first unit and the second unit;

[0026] - Inject resin into the receiving cavity via at least one injection channel;

[0027] - The resin is heat-treated via the at least one heating element in the receiving cavity to cure it.

[0028] According to a specific feature of the method, the method may further include the step of clamping the peripheral portion of the first unit against the peripheral portion of the second unit using a clamp in the closed position.

[0029] This step makes it easier to keep the tool in the closed position. Attached Figure Description

[0030] Other features and advantages of the invention will become apparent from the following description with reference to the accompanying drawings, which illustrate exemplary embodiments of the invention in a non-limiting manner.

[0031] [ Figure 1 ] Figure 1 The tool in the open position according to an embodiment is shown schematically;

[0032] [ Figure 2 ] Figure 2 The diagram schematically shows the closed position. Figure 1 Tools;

[0033] [ Figure 3 ] Figure 3 schematically shown Figure 1 The unit of the tool;

[0034] [ Figure 4 ] Figure 4 It is along Figure 2 IV-IV cut in the middle Figure 1 A partial sectional view of the tool;

[0035] [ Figure 5 ] Figure 5 A tool according to another embodiment is illustrated schematically;

[0036] [ Figure 6a ] Figure 6a schematically shown Figure 5 The tool is the first unit when it does not have a detachable part;

[0037] [ Figure 6b ] Figure 6b schematically shown Figure 5 The tool is the first unit when it includes a detachable part;

[0038] [ Figure 6c ] Figure 6c schematically shown Figure 5 The tool is the first unit when it includes a buffer plate;

[0039] [ Figure 6d ] Figure 6d schematically shown Figure 5 The tool is a second unit when it does not have a detachable part;

[0040] [ Figure 6e ] Figure 6e schematically shown Figure 5 The tool is a second unit when it includes a detachable part;

[0041] [ Figure 6f ] Figure 6f schematically shown Figure 5 The tool is the second unit when it includes a buffer plate;

[0042] [ Figure 7 ] Figure 7 It is along Figure 5 The direction VII-VII intercepted Figure 5 A partial sectional view of the tool. Detailed Implementation

[0043] This invention is generally applicable to the repair or restoration of edges of components made of composite materials, particularly but not exclusively applicable to edges of stator blades or propeller blades made of composite materials. This invention employs a specific tool 300, which will be described below in conjunction with the repair of stator blades made of composite materials.

[0044] Figure 1 The tool 300 is shown in the open position, while Figure 2 The same tool 300 is shown in the closed position. Tool 300 is used to repair the stator 400, including the damaged portion 401.

[0045] Tool 300 includes a first unit 100a and a second unit 100b. Each unit is capable of being positioned relative to the other unit. Figure 1 The opening position shown is the same as Figure 2 The first unit 100a and the second unit 100b move from open positions where they are separated from each other to closed positions where they are in contact with each other.

[0046] Figure 3 The unit of tool 300 is shown. For example... Figure 3 As shown, the first unit 100a has a central portion 102a and a peripheral portion 103a. Similarly, the second unit 100b has a central portion 102b and a peripheral portion 103b. Figure 4 As shown in the cross-sectional view of tool 300, the central portion 102a of the first unit 100a includes a first cavity 104a, which is shaped on the pressure side of the edge 400 of the stationary blade. The central portion 102b of the second unit 100b includes a second cavity 104b, which is shaped on the suction side of the edge 400 of the stationary blade. Figure 4 ).

[0047] Figure 4 A cross-sectional view of tool 300 along direction IV-IV is shown. Figure 4 As shown, when the tool 300 is in the closed position, the central portions 102a and 102b together define a receiving cavity 105. The receiving cavity 105 extends along the thickness direction Z of the tool 300 between the first cavity 104a of the first unit 100a and the second cavity 104b of the second unit 100b.

[0048] The peripheral portion 103a of the first unit 100a includes a first surface 106a, while the peripheral portion 103b of the second unit 100b includes a second surface 106b. When the tool 300 is in the closed position, the first surface 106a of the peripheral portion 103a of the first unit 100a contacts the second surface 106b of the peripheral portion 103b of the second unit 100b. The height of the receiving cavity 105, measured along the thickness direction Z, is equal to the sum of a first height separating the first cavity 104a and the first surface 106a along the thickness direction Z and a second height separating the second cavity 104b and the second surface 106b along the thickness direction Z.

[0049] The receiving cavity 105 is used to receive the damaged portion of the edge of the stator blade 400 to be repaired. The height of the receiving cavity 105 can be greater than or equal to the thickness of the edge portion of the stator blade 400 to be repaired. Figure 4In the example shown, the height of the receiving cavity 105 is greater than the thickness of the repaired portion 401 at the edge of the stator 400. The portion of the receiving cavity 105 along its height is filled with two buffer plates 1050a and 1050b, which respectively contact the first cavity 104a of the central portion 102a of the first unit 100a and the second cavity 104b of the central portion 102b of the second unit 100b. The buffer plates 1050a and 1050b may be made of silicone.

[0050] Providing buffer plates 1050a and 1050b within the receiving cavity 105 is optional. For example, in an embodiment not shown, the receiving cavity 105 may not have buffer plates. In this case, the height of the receiving cavity 105 may be equal to the thickness of the edge portion of the stator blade 400 to be repaired. According to another embodiment not shown, only one buffer plate may be provided within the receiving cavity 105. When one or more buffer plates are provided within the receiving cavity 105, the height of the receiving cavity 105 corresponds to the cumulative thickness of the one or more buffer plates and the edge portion of the stator blade 400 to be repaired.

[0051] When tool 300 is in Figure 2 When in the closed position shown, the peripheral portion 103a of the first unit 100a contacts the peripheral portion 103b of the second unit 100b, thereby forming a seal between the surface 106a of the peripheral portion 103a of the first unit 100a and the surface 106b of the peripheral portion 103b of the second unit 100b.

[0052] The first unit 100a and the second unit 100b may be made of a material with a melting point above 150°C and which is inert relative to the resin.

[0053] According to a specific feature of tool 300, the first unit 100a and the second unit 100b can be made of epoxy resin with a melting point greater than or equal to 150°C.

[0054] According to another specific feature of tool 300, the first unit 100a and the second unit 100b can be made of a metallic material with a melting point higher than 180°C. According to another specific feature of tool 300, the materials of the first unit 100a and the second unit 100b can be selected from aluminum, steel and titanium.

[0055] The tool 300 also includes at least one heating element configured to heat the receiving cavity 105.

[0056] exist Figures 1 to 3 In the example shown, tool 300 includes multiple heating elements, namely two first heating elements 110a and two second heating elements 110b. The first heating elements 110a are located inside the first unit 100a, while the second heating elements 110b are located inside the second unit 100b.

[0057] Providing multiple heating elements 110a and 110b inside the first unit 100a and the second unit 100b respectively can accelerate the heating of the receiving cavity and make the heating inside the receiving cavity 105 more uniform. However, in an embodiment not shown, the first unit 100a may include a single heating element 110a, and the second unit 100b may include a single heating element 110b.

[0058] The number of heating elements 110a and 110b is not limited. Specifically, when only the pressure side or suction side of the edge portion of the stator blade is damaged, only the unit 100a or 100b located on the side to be repaired includes one or more heating elements. Thus, it is possible to locally heat one side of the edge portion of the stator blade to be repaired without unnecessarily heating the opposite side of the stator blade edge.

[0059] Based on a specific feature of tool 300, such as Figure 4 As shown, each heating element 110a, 110b is cylindrical. This shape facilitates the machining of the unit of tool 300 to accommodate the heating element 110a or 110b.

[0060] like Figure 2 As shown, heating elements 110a or 110b also include gripping rods 111a and 111b. This facilitates positioning the heating element within the tool units 100a and 100b. The gripping rods 111a and 111b are made of heat-insulating material. This feature facilitates handling the heating element when it is at a high temperature.

[0061] The tool 300 further includes at least one injection channel 150 leading to the receiving cavity 105. The injection channel 150 allows resin to be injected into the receiving cavity 105. The injection channel 150 includes a piston 151 for injecting resin into the injection channel 150. The piston facilitates the introduction of resin via the injection channel 150. This configuration is particularly effective in injecting resin into the damaged side of the stationary vane when the other side of the vane is undamaged. In an embodiment not shown, the tool may include a syringe or any other resin injection device instead of the piston 151.

[0062] exist Figure 1 and Figure 3 In the example shown, tool 300 includes an injection channel 150 extending through the second unit 100b. The injection channel 150 extends through the second unit 100b in the thickness direction Z, and its first end opens into the receiving cavity 105.

[0063] The number of injection channels is not limited. Therefore, in one embodiment, the first unit 100a and the second unit 100b may each be provided with one resin injection channel. In another embodiment, the first unit 100a may include multiple injection channels, and the second unit 100b may also include multiple injection channels. In yet another embodiment, the first unit 100a or the second unit 100b may include multiple injection channels.

[0064] exist Figure 1 and Figure 4 In the example shown, tool 300 also includes a clamp 600. The clamp 600 keeps the peripheral portion 103a of the first unit 100a in contact with the peripheral portion 103b of the second unit 100b. The clamp 600 applies a given pressure to the first unit 100a and the second unit 100b to keep the peripheral portion 103a of the first unit 100a in contact with the peripheral portion 103b of the second unit 100b. This facilitates holding the tool in the closed position.

[0065] Tool 300 also includes: a first groove 161a and a second groove 161b ( Figure 3 and Figure 4 The discharge channel 160 is formed. A first groove 161a is formed on the surface 106a of the first unit 100a, and when the tool 300 is in the closed position, the surface 106a of the first unit 100a contacts the surface 106b of the second unit 100b. A second groove 161b is formed on the surface 106b of the second unit 100b, and when the tool 300 is in the closed position, the surface 106b of the second unit 100b contacts the first unit 100a. The first groove 161a extends between the inner edge 113a and the outer edge 123a of the first unit 100a, the inner edge 113a of the first unit 100a defining a first portion of the receiving cavity 105, and the outer edge 123a of the first unit 100a defining the outer contour of the first unit 100a. The second groove 161b extends between the inner edge 113b and the outer edge 123b of the second unit 100b, whereby the inner edge 113b defines a second portion of the receiving cavity 105, and the outer edge 123b defines the outer contour of the second unit 100b. When the tool 300 is in the closed position, the first groove 161a engages with the second groove 161b to form a cylindrical discharge channel 160. The discharge channel 160 leads to the receiving cavity 105. This channel facilitates the removal of any excess resin injected into the receiving cavity.

[0066] The number of discharge channels 160 does not constitute a limitation on the present invention. Multiple discharge channels 160 may be formed between the first unit 100a and the second unit 100b.

[0067] The discharge channel 160 includes a plug 162, such as Figure 2 and Figure 4 As shown, when the discharge channel 160 is in the closed position, the sealing plug 162 is partially accommodated in the discharge channel 160. When resin is injected into the receiving cavity 105, the sealing plug 162 can be removed from the discharge channel 160, thereby allowing any excess resin to be discharged.

[0068] Figure 5 Figure 6 and Figure 7 A second exemplary embodiment of the tool is shown. This embodiment is related to... Figures 1 to 4 The difference in the illustrated embodiment is that tool 200 is adaptable to stationary blades of different sizes and shapes.

[0069] In this embodiment, the first unit 200a has a central portion 232a and a peripheral portion 233a. Similarly, the second unit 200b has a central portion 232b and a peripheral portion 233b. The central portion 232a of the first unit 200a includes a first cavity 237a, which is shaped to receive, for example... Figure 6b The first detachable part 234a is shown. (As shown) Figure 6d As shown, the central portion 232b of the second unit 100b includes a second cavity 237b, which is shaped to receive a second removable portion 234b.

[0070] like Figure 6b As shown, the first detachable portion 234a is disposed within the first cavity 237a of the central portion 232a of the first unit 200a. Figure 6e As shown, the second detachable portion 234b is disposed within the second cavity 237b of the central portion 232b of the second unit 200b. Figure 7 As shown, when the tool 200 is in the closed position, the first removable portion 234a and the second removable portion 234b together define a receiving cavity 230, which has a given shape of a portion of the stationary blade.

[0071] This configuration of tool 200 allows for the repair of stator blades of different shapes and sizes using the same tool. Specifically, by simply replacing the removable parts 234a and 234b, tool 200 can be adapted to repair stator blades of a different shape or size.

[0072] The height of the receiving cavity 230 can be greater than or equal to the thickness of the edge portion of the stator blade 400 to be repaired. Figure 7 In the example shown, the height of the receiving cavity 230 is greater than the thickness of the edge portion of the stator blade 400 to be repaired. In the example shown, the height of the receiving cavity 230 is partially filled by two buffer plates 2350a and 2350b. Figure 6c and Figure 6fAs shown, a first buffer plate 2350a is disposed on a first removable portion 234a, and a second buffer plate 2350b is disposed on a second removable portion 234b. The first buffer plate 2350a contacts a first surface 2341a of the first removable portion 234a, and the second buffer plate 2350b contacts a second surface 2341b of the second removable portion 234b. The buffer plates 2350a and 2350b may contain silicone.

[0073] Providing a buffer plate within the receiving cavity 230 is optional. For example, in an embodiment not shown, the receiving cavity 230 may not have a buffer plate. In this case, the height of the receiving cavity 230 may be equal to the thickness of the edge portion of the stator vane 400 to be repaired. According to another embodiment not shown, a single buffer plate is provided within the receiving cavity 230. In this case, the height of the receiving cavity 230 may be equal to the cumulative thickness of the buffer plate and the edge portion of the stator vane 400 to be repaired.

[0074] Figure 5 Figure 6 and Figure 7 The illustrated tool 200 further includes at least one injection channel 270 leading to a receiving cavity 230. The injection channel 270 allows resin to be injected into the receiving cavity 230. The injection channel 270 includes a piston 271 for injecting resin into the injection channel 270. The piston 271 is capable of pushing resin through the injection channel 270. The piston 271 facilitates the introduction of resin via the injection channel 270, thereby facilitating the distribution of resin within the receiving cavity 230. In an embodiment not shown, the tool may include a syringe instead of the piston 271.

[0075] exist Figure 7 In this embodiment, the tool 300 includes an injection channel 270 formed within the second unit 200b. The injection channel 270 extends through the second unit 200b along the thickness direction Z, and its first end opens into the receiving cavity 230. In a plane perpendicular to the thickness direction Z of the tool 200, the injection channel 270 is positioned at the center of the second unit 200b. This arrangement facilitates the uniform distribution of resin within the receiving cavity 230.

[0076] The following describes an example of a method for locally repairing the edge of a stator blade made of composite material. This method is implemented using the tools described above. In the first step, the portion of the stator blade edge to be repaired is held inside the receiving cavity 105 or 230 (…). Figure 2 and Figure 5 ).

[0077] The method then includes the step of injecting resin into the receiving cavity 105 or 230.

[0078] According to a specific feature of this method, the resin is injected by piston 151 through injection channel 150, or by piston 271 through injection channel 270. However, other injection methods may also be used.

[0079] Examples of resins that can be used include polyester resins, epoxy resins, and phenolic resins.

[0080] The method then includes a step of heat-treating the resin to cure it, for example by means of one or more of the heating elements described above. The curing method is carried out at a temperature between 25°C and 200°C.

[0081] The method then includes a demolding step, during which the repaired portion of the leaf edge is removed from the tool.

[0082] Before the first step (i.e., the step of holding the damaged portion of the edge within the receiving cavity), one or more buffer plates can be positioned inside the receiving cavity. This step facilitates the absorption of pressure applied during tool closure, thereby further protecting the portion of the stator edge to be repaired.

[0083] Before positioning one or more buffer plates inside the receiving cavity, the steps of positioning the first removable portion inside the central portion of the first unit and positioning the second removable portion inside the central portion of the second unit may be performed first.

[0084] The method also includes a step of clamping the peripheral portion of the first unit against the peripheral portion of the second unit. This can be achieved using methods such as... Figure 1 and Figure 5 The clamping device, such as the fixture 600 shown, is used for clamping. Other clamping devices can also be conceived.

Claims

1. A tool (200, 300) for locally repairing or restoring the edges of a component (400) made of composite materials, characterized in that, The tool includes a first unit (100a, 200a) and a second unit (100b, 200b) movable relative to each other between an open position and a closed position. Each unit has a central portion (102a, 102b, 232a, 232b) and a peripheral portion (103a, 103b, 233a, 233b). In the closed position, the central portions of the units collectively define a receiving cavity (105, 230) for receiving a damaged portion of the edge of a component to be repaired. In the closed position, the peripheral portions of each unit are in contact with each other. The tool also includes at least one heating element (110a, 110b) configured to heat the receiving cavity, and at least one injection channel leading to the receiving cavity.

2. The tool according to claim 1, further comprising at least one clamp (600) that, in the closed position, keeps the peripheral portions (103a, 233a) of the first unit (100a, 200a) in contact with the peripheral portions (103b, 233b) of the second unit (100b, 200b).

3. The tool according to claim 1 or 2, wherein, The at least one heating element (110a, 110b) is located inside the first unit (100a, 200a) or the second unit (100b, 200b).

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

5. The tool according to any one of claims 1 to 4, wherein, The first unit (100a) includes a first groove (161a) extending between the outer edge and the inner edge of the peripheral portion of the first unit (100a), and the second unit (100b) includes a second groove (161b) extending between the outer edge and the inner edge of the peripheral portion of the second unit (100b). In the closed position, the first groove (161a) and the second groove (161b) cooperate with each other to form a discharge channel leading to the receiving cavity.

6. The tool according to any one of claims 1 to 5, further comprising: At least one first buffer plate (1050a, 1050b, 2350a, 2350b) is disposed inside the receiving cavity (105, 230).

7. The tool according to any one of claims 1 to 6, further comprising: At least one first detachable portion (234a) is disposed inside the central portion of the first unit (200a); And at least one second removable portion (234b) disposed inside the central portion of the second unit (200b), wherein in the closed position, the first removable portion and the second removable portion together define a given shape of the edge portion of the component to be repaired (400).

8. The tool according to claim 7, further comprising: At least one first buffer plate (2350a) is disposed on the first removable portion (134a) inside the receiving cavity; And a second buffer plate (2350b), which is disposed inside the receiving cavity (230) on the second removable part (134b).

9. A method for locally repairing or restoring the edges of a component (400) made of composite materials, characterized in that, The method includes using a local repair tool according to any one of claims 1 to 8, and includes the following steps: The damaged portion of the edge of the component (400) is held inside the receiving cavity (105, 230) defined by the central portion of the first unit (100a, 200a) and the second unit (100b, 200b); Resin is injected into the receiving cavity (105, 230) via at least one injection channel (150, 270); The resin is heat-treated via the at least one heating element (110a, 110b) in the receiving cavity (105, 230) to cure it.

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

Images