Manufacturing method of resonant long wing-shaped wedge outer edge stealth structure component

Abstract

The invention discloses a manufacturing method of a resonant type long wing-shaped wedge outer edge invisible structural component. The manufacturing method comprises the steps that (1) a long wing-shaped wedge outer edge invisible part forming mold is designed; (2) preparing a stealth material blank of the stealth part with the long wing-shaped wedge outer edge: weighing the stealth material, rolling the stealth material into sheets, cutting and supplementing stealth material films, and laminating and preforming the stealth material to obtain the stealth material blank of the stealth part with the long wing-shaped wedge outer edge; (3) forming of the long-wing-shaped wedge outer edge invisible part: putting the invisible material blank into a core mold, closing the mold, vulcanizing and forming to obtain the long-wing-shaped wedge outer edge invisible part; and (4) bonding the long-wing-shaped wedge outer edge invisible part: bonding the long-wing-shaped wedge outer edge invisible part, vacuumizing, compacting and curing, finishing and post-processing to obtain the resonant long-wing-shaped wedge outer edge invisible structural part. The method is reliable and high in repeatability, molding and bonding can be carried out synchronously, the production efficiency is improved, and the process difficulty of molding of the resonant long wing-shaped wedge outer edge stealth structure component is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of preparation of some complex stealth structural components of aviation equipment, and relates to a method for manufacturing a resonant long wing-shaped wedge outer edge stealth structural component. Background Art

[0002] With the rapid development of radio technology and radar detection systems, the detection system's ability to search and track targets has become more accurate. Multi-band joint detection technology has become an important means of monitoring military targets. The working principle of radar detection is to determine the existence of the target and determine the location of the target based on the scattering energy of the radar target to the radar wave. In order to meet the needs of modern warfare, many equipment use stealth technology to prevent the product from being detected by the opponent's radar and intercepted. The wing structure on the product is an important electromagnetic scattering component in the forward angle domain, and its radar echo mainly comes from the leading edge and trailing edge of the wing surface. The echo mechanism includes wing surface scattering, edge diffraction, and multiple scattering formed by coupling between the wing surface and the product body. Taking stealth measures on the wing structure can convert the electromagnetic energy of the radar wave into heat energy, mechanical energy, etc., and scatter it, so that the interference of the electromagnetic wave is weakened, the echo intensity is attenuated, the radar scattering cross section is reduced, and the survivability of the equipment is improved. In industrial production, the stealth coating is generally applied to the structural parts by spraying. Although spraying has the characteristics of multi-directionality, full angle, and strong adaptability to the target shape, the spraying time span is large and the operator's level is required to be high. For components with special structures, such as the outer edge of a wedge, spraying is adopted. Firstly, the loading rate of the absorbing coating is low, resulting in great waste; secondly, the thickness of the local coating cannot be guaranteed, which increases the difficulty of post-processing construction. Summary of the invention

[0003] (I) Purpose of the invention

[0004] The purpose of the present invention is to provide a method for manufacturing a resonant long wing-shaped wedge outer edge stealth structural component, overcome the limitations of spray-type construction of stealth materials, and improve production efficiency; while meeting the requirements of stealth functions of some structural components of aviation equipment.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a method for manufacturing a resonant long wing-shaped wedge outer edge stealth structural component, comprising the following steps:

[0007] (1) Design of the long wing-shaped pointed wedge outer edge stealth component molding mold: Design of the long wing-shaped pointed wedge outer edge stealth component molding core mold, design of the long wing-shaped pointed wedge outer edge stealth component molding upper mold and lower mold, to obtain the long wing-shaped pointed wedge outer edge stealth component molding mold.

[0008] (2) Stealth material blanks for long wing-shaped pointed wedge outer edge stealth parts: Prepare stealth materials for long wing-shaped pointed wedge outer edge stealth parts by weighing, rolling the stealth materials into sheets, cutting stealth material films, and preforming the stealth materials by stacking to obtain stealth material blanks for long wing-shaped pointed wedge outer edge stealth parts.

[0009] (3) Forming of the long wing-shaped pointed wedge outer edge stealth component: placing the stealth material blank of the long wing-shaped pointed wedge outer edge stealth component into a core mold, closing the mold and vulcanizing to obtain the long wing-shaped pointed wedge outer edge stealth component.

[0010] (4) Bonding of the long wing-shaped pointed wedge outer edge stealth component: The long wing-shaped pointed wedge outer edge stealth component is bonded by gluing, vacuumed, compacted and solidified, and then trimmed to obtain a resonant long wing-shaped pointed wedge outer edge stealth structural component.

[0011] Furthermore, in step (1), the core mold for forming the long wing-shaped wedge-shaped outer edge stealth component is designed, and the function of the core mold is to cover the stacked blanks of stealth material thereon, and the outer surface of the core mold and the outer surface of the wing-shaped wedge-shaped outer edge of the metal substrate are designed to be of the same shape, so as to shape the inner surface of the long wing-shaped wedge-shaped outer edge stealth component.

[0012] Furthermore, in step (1), the upper and lower molds for forming the long wing-shaped wedge outer edge stealth part are designed to facilitate the forming of the long wing-shaped wedge outer edge stealth part. The inner mold surface is designed and processed according to the appearance of the three-dimensional model of the long wing-shaped wedge outer edge stealth part. The outer surface of the mold is a regular shape, which facilitates the uniform force of the stealth material blank when the press is pressurized. This test uses a hydraulic press to pressurize the mold for synchronous and rapid production rhythm. Of course, it can also be pressurized by but not limited to screw pressurization, autoclave or other methods.

[0013] There are positioning holes at the end of the core mold and the ends of the upper mold and lower mold. After the positioning holes match, the two are fixed with positioning pins.

[0014] Furthermore, the stealth material blank for the long wing-shaped wedge-shaped outer edge stealth component prepared in step (2) is a radar wave absorbing layer.

[0015] Further preferably, the radar wave absorbing layer is two or more layers of microwave resonance structure absorbing layers. The radar wave absorbing layer selected in this test is two layers, wherein the microwaves absorbed by the first layer of microwave resonance structure absorbing layer are within the C frequency band, and the microwave frequency band absorbed by the second layer of microwave resonance structure absorbing layer is within the Ku frequency band, and the microwave resonance absorption efficiency of the two layers is greater than or equal to 0.9.

[0016] Further preferably, the stealth material is a microwave resonant structure absorption layer, which is made of raw rubber (unvulcanized rubber) with absorbents such as indium tin oxide, zinc aluminum oxide, graphite flakes or iron fibers added to achieve efficient absorption of wide-spectrum radar waves. The stealth material combination used in this experiment has an electromagnetic wave reflectivity of R≤-12dB in the frequency range from C band to Ku band. The production is not limited to two layers and this type of stealth material, and other stealth materials with higher electromagnetic reflectivity or better combination of layers can be selected according to actual needs.

[0017] Furthermore, in step (2), the stealth material is rolled into sheets, and the block or lump-shaped raw rubber stealth material is rolled into sheets multiple times using a kneading machine.

[0018] Further preferably, the kneading machine is composed of a pair of smooth cylinders that cooperate and rotate with each other, and the extrusion force generated causes the stealth material to expel bubbles in the film and squeeze it into a sheet shape.

[0019] Furthermore, in step (2), the stealth material film is cut and mended by using a blade or other tool to roughly cut the sheet material according to the unfolded appearance of the long wing-shaped wedge outer edge stealth component, and the missing material area is cut and mended.

[0020] Furthermore, in step (2), the stealth material is preformed by placing the first layer of microwave resonance structure absorption layer on the top and the second layer of microwave resonance structure absorption layer on the bottom, and the two layers are stacked to obtain a stealth material blank with a long wing-shaped wedge outer edge stealth component.

[0021] Furthermore, in step (3), the obtained stealth material blank of the long wing-shaped wedge outer edge stealth component is placed into the core mold, and the stealth material blank of the long wing-shaped wedge outer edge stealth component is placed on the core mold according to the shape of the core mold.

[0022] Furthermore, in step (3), the mold-closing vulcanization molding is performed by placing the core mold of the stealth material blank with a long wing-shaped pointed wedge outer edge in the lower mold through a positioning pin, applying pressure through a press, and closing the mold for vulcanization molding. The mold temperature is set to 130°C-135°C. When the temperature is raised from 90°C to within 110°C, the molding pressure is increased to 3MPa. At the same time, the pressure is kept from dropping before demolding. The temperature is kept at 130°C-135°C for 4 hours, naturally cooled, and demolded to obtain a long wing-shaped pointed wedge outer edge stealth part.

[0023] Furthermore, as described in step (4), the long wing-shaped wedge outer edge stealth piece is bonded by gluing, the bonding surface between the long wing-shaped wedge outer edge stealth piece and the metal substrate wing-shaped wedge outer edge is wiped clean, and a layer of commonly used epoxy adhesive is evenly scraped. The adhesive brand used in this experiment is DG-3S (the production is not limited to this adhesive, as long as the bonding strength between the adhesive and the metal is better than the bonding strength between the stealth coating and the metal material, it can be used, and the gluing method is not limited to scraping, and the viscosity of the adhesive can be adjusted for spraying or spot coating). With the wing tip as the reference point, the wing-shaped wedge outer edge stealth piece is bonded and applied according to the reserved groove on the metal substrate wing-shaped wedge outer edge.

[0024] Furthermore, in step (4), vacuuming, compacting and curing are performed to ensure that the wing-shaped wedge outer edge stealth piece and the metal substrate wing-shaped wedge outer edge are firmly and evenly bonded without cracks or bulging, and at the same time, there are no bubbles or defects inside the adhesive layer after curing. After the wing-shaped wedge outer edge stealth piece and the metal substrate are attached, the whole is vacuumed and pressurized for curing.

[0025] More preferably, the vacuuming should ensure that the pressure in the vacuum bag is below -0.085 MPa, and the vacuuming time is more than 4 hours.

[0026] Furthermore, as described in step (4), after finishing, the bonding area of ​​the cured resonant long wing-shaped wedge outer edge stealth component is smoothly transitioned, and there must be no reverse heading step difference, and the forward heading step difference is less than 0.2 mm. The overall structure of the pasted long wing-shaped wedge outer edge stealth component meets the aerodynamic characteristics requirements and is streamlined, thereby obtaining a resonant long wing-shaped wedge outer edge stealth structural component.

[0027] (III) Beneficial effects

[0028] The manufacturing method of the resonant long wing-shaped wedge outer edge stealth structural component provided by the above technical solution has the following beneficial effects:

[0029] (1) Innovatively pre-forming stealth materials with different characteristics by stacking them, and then vulcanizing and compression molding them as a whole, making full use of the molding concept of composite materials and maximizing the resonant performance of stealth materials.

[0030] (2) Compared with the spraying preparation process, the compression vulcanization molding of stealth materials is realized, with a short molding cycle and high dimensional accuracy.

[0031] (3) The use of compression molding greatly saves the use of raw materials compared to spray molding (spray molding has a long time cycle and low material loading).

[0032] (4) The use of adhesives makes the bonding strength between stealth materials and metal parts better than the bonding strength between stealth materials and metal parts in direct contact. At the same time, the modular and rolling production method ensures that each module does not affect each other.

[0033] (5) The compression molding method is reliable and highly repeatable. Molding and bonding can be carried out simultaneously, which improves production efficiency and reduces the process difficulty of molding the resonant long wing-shaped wedge outer edge stealth structural components. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the core mold structure for forming the long wing-shaped wedge outer edge stealth component.

[0035] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper and lower molds for forming the long wing-shaped wedge outer edge stealth component.

[0036] Figure 3 It is a schematic diagram of the structure of the stealth material blank of the long wing-shaped wedge outer edge stealth component.

[0037] Figure 4 Schematic diagram of the long wing-shaped wedge outer edge stealth component.

[0038] Figure 5 It is a schematic diagram of the structure of the resonant long wing-shaped wedge outer edge stealth structural components.

[0039] As indicated by the numbers in the figure: forming core mold 1, forming upper mold 2, forming lower mold 3, stealth material blank 4, long wing-shaped pointed wedge outer edge stealth component 5, resonant long wing-shaped pointed wedge outer edge stealth structural component 6. DETAILED DESCRIPTION

[0040] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0041] The long wing-shaped wedge outer edge stealth component is light in weight and low in cost. It can be covered on the surface of the metal substrate wing-shaped wedge outer edge by gluing without changing the shape of the wing-shaped wedge outer edge, thereby meeting the stealth requirements of the equipment under different frequency band detection while meeting the combat function of the equipment. The radar wave absorption range covers the C band to the Ku band, and the electromagnetic wave reflectivity R≤-12dB.

[0042] The manufacturing method of the resonant long wing-shaped wedge outer edge stealth structure component of this embodiment comprises the following steps:

[0043] (1) Design of the mold for forming the long wing-shaped wedge outer edge stealth component

[0044] like Figure 1 As shown, the function of the long wing-shaped wedge outer edge stealth component forming core mold 1 is to cover the long wing-shaped wedge outer edge stealth component stealth material blank 4 on the long wing-shaped wedge outer edge stealth component forming core mold, and the outer surface of the long wing-shaped wedge outer edge stealth component forming core mold 1 is designed to be the same shape as the outer surface of the wing-shaped wedge outer edge of the metal substrate, so as to shape the inner surface of the long wing-shaped wedge outer edge stealth component 5.

[0045] In order to facilitate the molding of the long wing-shaped wedge outer edge stealth member, an upper mold 2 for molding the long wing-shaped wedge outer edge stealth member and a lower mold 3 for molding the long wing-shaped wedge outer edge stealth member are designed, as shown in FIG. Figure 2 As shown, the inner mold surface is designed and processed according to the three-dimensional model shape of the long wing-shaped wedge outer edge stealth part, and the outer surface of the mold is a regular shape, which is convenient for the long wing-shaped wedge outer edge stealth part stealth material blank 4 to be evenly stressed when the press is pressed. This test uses a hydraulic press to pressurize the mold for synchronous and rapid production rhythm, and can also be pressurized by screw pressurization, autoclave or other methods but is not limited to.

[0046] The long wing-shaped pointed wedge outer edge stealth part molding mold is composed of: a long wing-shaped pointed wedge outer edge stealth part molding core mold 1, a long wing-shaped pointed wedge outer edge stealth part molding upper mold 2, and a long wing-shaped pointed wedge outer edge stealth part molding lower mold 3. The long wing-shaped pointed wedge outer edge stealth part molding core mold 1 and the long wing-shaped pointed wedge outer edge stealth part molding lower mold 3 have matching locating pins to facilitate the insertion of the long wing-shaped pointed wedge outer edge stealth part molding core mold 1. There are mold guide pillars and guide pillar holes between the long wing-shaped pointed wedge outer edge stealth part molding upper mold 2 and the molding lower mold 3, which are convenient for mold positioning and matching when closing the mold. There is a pressure block between the mold seams of the long wing-shaped pointed wedge outer edge stealth part molding upper mold 2 and the molding lower mold 3, which is convenient for observing whether the mold is in place to prevent overpressure from damaging the mold.

[0047] (2) Stealth material blank for long wing-shaped wedge outer edge stealth component

[0048] Preparation of long wing-shaped wedge outer edge stealth piece The stealth material blank 4 is a radar wave absorption layer. The radar wave absorption layer is a two-layer or multi-layer microwave resonance structure absorption layer. The radar wave absorption layer selected for this experiment is two layers, wherein the microwave frequency band absorbed by the first layer of microwave resonance structure absorption layer is between the C frequency band, and the microwave frequency band absorbed by the second layer of microwave resonance structure absorption layer is between the Ku frequency band. The microwave resonance absorption efficiency of the two layers is greater than or equal to 0.9. The stealth material is a microwave resonance structure absorption layer, and its material is raw rubber (unvulcanized rubber) with absorbents such as indium tin oxide, zinc aluminum oxide, graphite flakes or iron fibers added to achieve efficient absorption of wide-spectrum radar waves. The stealth material used in this experiment is between the Ku frequency band in the frequency range, and the electromagnetic wave reflectivity R≤-12dB, but the production is not limited to two layers and this type of stealth material. Other stealth materials with higher electromagnetic reflectivity or better layer combination can be selected according to actual needs. The block or lump stealth material is repeatedly rolled into a sheet using a kneading machine. Use a blade or other tool to roughly cut the sheet material according to the appearance of the long wing-shaped wedge outer edge stealth component, and cut and fill the missing area. Figure 3 As shown, the first layer of microwave resonance structure absorption layer is placed on the top, and the second layer of microwave resonance structure absorption layer is placed on the bottom, and the two layers are stacked to obtain a long wing-shaped wedge-shaped outer edge stealth piece stealth material blank 4.

[0049] (3) Forming of the long wing-shaped wedge outer edge stealth component

[0050] The obtained long wing-shaped wedge outer edge stealth material blank 4 is placed on the long wing-shaped wedge outer edge stealth piece molding core mold 1, and the core mold with the long wing-shaped wedge outer edge stealth material blank 4 is placed in the long wing-shaped wedge outer edge stealth piece molding lower mold 3 through the positioning pin, and pressure is applied by a press, and the mold is closed for vulcanization molding. The mold temperature is set to 130℃-135℃. When the temperature is raised from 90℃ to within 110℃, the molding pressure is gradually increased to 3MPa. The pressure is kept unchanged before demoulding, and it is kept at 130℃-135℃ for 4 hours. It is naturally cooled to below 60℃ and demoulding to obtain the following Figure 4 The long wing-shaped wedge outer edge stealth component 5.

[0051] (4) Bonding of long wing-shaped wedge outer edge stealth components

[0052] Wipe the long wing-shaped wedge outer edge stealth piece 5 and the metal substrate wing-shaped wedge outer edge clean with alcohol, and evenly scrape a layer of commonly used epoxy adhesive. When scraping the adhesive layer, the defects of the wing-shaped wedge outer edge stealth piece 5 and the metal substrate wing-shaped wedge outer edge bonding surface can be partially compensated. The adhesive brand used in this test is DG-3S (it is not limited to this adhesive in production, as long as the bonding strength between the adhesive and the metal is better than the bonding strength between the stealth coating and the metal material, it can be used. The gluing method is not limited to scraping, and the viscosity of the adhesive can be adjusted for spraying or spot coating.) Take the wing tip as the reference point and follow the reserved groove on the metal substrate wing-shaped wedge outer edge to bond and apply the wing-shaped wedge outer edge stealth piece.

[0053] In order to ensure that the wing-shaped wedge outer edge stealth piece 5 and the metal substrate wing-shaped wedge outer edge are firmly and evenly bonded without cracks or bulging, and at the same time, the glue layer has no bubbles or defects inside after curing, the wing-shaped wedge outer edge stealth piece 5 and the metal substrate are vacuumed and pressurized for curing after they are applied. To ensure that the pressure in the vacuum bag is below -0.085MPa, the vacuuming time should be more than 4 hours. The bonding area of ​​the cured wing-shaped wedge outer edge stealth piece 5 should have a smooth transition, and there should be no reverse heading step difference. The heading step difference is less than 0.2mm. The overall structure of the pasted long wing-shaped wedge outer edge stealth piece 5 meets the aerodynamic characteristics requirements and is streamlined, as shown in the following figure. Figure 5 A resonant long wing-shaped wedge-shaped outer edge stealth structural component 6 is shown.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for manufacturing a resonant long wing-shaped wedge outer edge stealth structure component, characterized in that: The following steps are involved: (1) Design of a long wing-shaped wedge outer edge stealth component forming mold: design of a long wing-shaped wedge outer edge stealth component forming core mold, design of an upper mold and a lower mold for the long wing-shaped wedge outer edge stealth component forming, and obtain a long wing-shaped wedge outer edge stealth component forming mold; (2) Stealth material blank for long wing-shaped pointed wedge outer edge stealth piece: weighing and preparing stealth material for long wing-shaped pointed wedge outer edge stealth piece, rolling the stealth material into sheets, cutting and patching stealth material films, and preforming the stealth material by stacking layers to obtain stealth material blank for long wing-shaped pointed wedge outer edge stealth piece; (3) Forming the long wing-shaped pointed wedge outer edge stealth component: placing the long wing-shaped pointed wedge outer edge stealth component stealth material blank into a core mold, closing the mold and vulcanizing to obtain the long wing-shaped pointed wedge outer edge stealth component; (4) Bonding of the long wing-shaped pointed wedge outer edge stealth component: The long wing-shaped pointed wedge outer edge stealth component is bonded by gluing, vacuumed, compacted and solidified, and then trimmed to obtain a resonant long wing-shaped pointed wedge outer edge stealth structural component.

2. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 1, characterized in that: In step (1), in the design of the core mold for forming the long wing-shaped wedge outer edge stealth component, the core mold is used to cover the stacked blanks of stealth material, and the outer surface of the core mold is designed to be the same shape as the outer surface of the wing-shaped wedge outer edge of the metal substrate, so as to shape the inner surface of the long wing-shaped wedge outer edge stealth component.

3. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 2, characterized in that: In step (1), in the design of the upper mold and lower mold for forming the long wing-shaped pointed wedge outer edge stealth part, the inner mold surface of the molding lower mold is designed and processed according to the appearance of the three-dimensional model of the long wing-shaped pointed wedge outer edge stealth part, and the outer surface of the mold is a regular shape; positioning holes are opened at the end of the core mold and the ends of the molding upper mold and lower mold. After the positioning holes are matched, the two are fixed using positioning pins.

4. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 3, characterized in that: In step (2), the stealth material blank for preparing the long wing-shaped wedge-shaped outer edge stealth component is a radar wave absorption layer; the radar wave absorption layer has two layers, wherein the microwaves absorbed by the first microwave resonance structure absorption layer are within the C frequency band, and the microwaves absorbed by the second microwave resonance structure absorption layer are within the Ku frequency band, and the microwave resonance absorption efficiencies of the two layers are both greater than or equal to 0.

9.

5. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 4, characterized in that: In step (2), the stealth material is a microwave resonant structure absorption layer, and its material is raw rubber with indium tin oxide, zinc aluminum oxide, graphite sheet or iron fiber absorber added. The stealth material has a frequency range between the C band and the Ku band, and an electromagnetic wave reflectivity of R≤-12dB.

6. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 5, characterized in that: In step (2), the stealth material is rolled into sheets, and the block or lump raw rubber stealth material is rolled into sheets multiple times using a kneading machine; the stealth material film is cut and patched using a blade tool, and the sheet is cut according to the unfolded appearance of the long wing-shaped pointed wedge outer edge stealth piece, and the missing material area is cut and patched; the stealth material is pre-formed by stacking the layers, and the first layer of microwave resonance structure absorption layer is placed on the top, and the second layer of microwave resonance structure absorption layer is placed on the bottom, and the two layers are stacked to obtain a stealth material blank for the long wing-shaped pointed wedge outer edge stealth piece.

7. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 6, characterized in that: In step (3), the stealth material blank of the long wing-shaped pointed wedge outer edge stealth part is placed into a core mold, and the stealth material blank of the long wing-shaped pointed wedge outer edge stealth part is placed on the core mold according to the shape of the core mold; the mold is closed and vulcanized, and the core mold with the stealth material blank of the long wing-shaped pointed wedge outer edge stealth part is placed in the lower mold through the positioning pin, and pressure is applied by a press, and the mold is closed and vulcanized, and the mold temperature is set to 130℃-135℃. When the temperature is raised from 90℃ to within 110℃, the molding pressure is increased to 3MPa, and the pressure is kept from dropping before demolding. The temperature is kept at 130℃-135℃ for 4 hours, naturally cooled, and demolded to obtain the long wing-shaped pointed wedge outer edge stealth part.

8. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 7, characterized in that: In step (4), the long wing-shaped wedge outer edge stealth piece is bonded by gluing, the bonding surfaces of the long wing-shaped wedge outer edge stealth piece and the metal substrate wing-shaped wedge outer edge are wiped clean, a layer of epoxy adhesive is evenly applied, and the wing-shaped wedge outer edge stealth piece is bonded and applied along the reserved groove on the metal substrate wing-shaped wedge outer edge with the wing tip as the reference point.

9. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 8, characterized in that: In step (4), during vacuuming, compacting and curing, the wing-shaped wedge outer edge stealth member and the metal substrate are laminated and then vacuumed and pressurized for curing as a whole; during vacuuming, the pressure in the vacuum bag is below -0.085 MPa, and the vacuuming time is more than 4 hours.

10. The method for manufacturing the resonant long wing-shaped wedge outer edge stealth structure component according to claim 9, characterized in that: In step (4), after finishing, the bonding area of ​​the cured resonant long wing-shaped pointed wedge outer edge stealth component is smoothly transitioned, the along-course step difference is less than 0.2 mm, and the overall structure of the pasted long wing-shaped pointed wedge outer edge stealth component meets the aerodynamic characteristics requirements and presents a streamlined shape, thereby obtaining a resonant long wing-shaped pointed wedge outer edge stealth structural component.

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