A light-weight corrugated aluminum plate filled ceramic composite structure bulletproof insert plate and a preparation method thereof

Abstract

The application discloses a kind of lightweight corrugated aluminum plate filled ceramic composite structure bulletproof insert plate and preparation method thereof. Including: trapezoidal aluminum alloy corrugated plate, trapezoidal alumina ceramic prism, UHMWPE fiber backboard and epoxy resin adhesive. Trapezoidal aluminum alloy corrugated plate has hollow trapezoidal prism;The hollow trapezoidal prism is matched with trapezoidal alumina ceramic prism, and the trapezoidal aluminum alloy corrugated plate and trapezoidal alumina ceramic prism are clearance fit. Trapezoidal aluminum alloy corrugated plate and trapezoidal alumina ceramic prism are fixed using epoxy resin adhesive, and trapezoidal aluminum alloy corrugated plate and UHMWPE fiber backboard are bonded using epoxy resin adhesive. The application solves the problem that the existing bulletproof insert plate is heavy and lacks protection capability.

Description

Technical Field

[0001] This invention belongs to the field of protective technology, specifically relating to a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert and its preparation method. Background Technology

[0002] Modern battlefields offer greater precision, destructive power, and mobility, placing higher demands on the flexibility of commanders and combat personnel at all levels. Therefore, lightweight individual protective equipment with good protective performance plays a crucial role.

[0003] In recent decades, ceramic materials have become essential for protecting against high-energy projectiles such as small-caliber armor-piercing projectiles. Meanwhile, with advancements in high technology, fiber synthesis, and spinning processes, high-performance fiber-based ballistic materials are gradually emerging in the field of ballistic protection, particularly showing significant application prospects in individual ballistic protection.

[0004] Corrugated structures are lightweight porous structures with excellent mechanical properties. However, lightweight porous structures alone are slightly insufficient in resisting ballistic penetration. Different materials can be filled into the pores of the corrugated structure to form a hybrid lightweight porous structure, improving the overall impact resistance. This is a lightweight sandwich structure composed of various materials (metals and non-metals) and multiple structural types, filled with other materials. The materials include aluminum alloys and steel (metallic materials), and non-metallic materials such as aramid fiber (Kevlar), ultra-high molecular weight polyethylene fiber (UHMWPE), glass fiber (GFRP), carbon fiber (CFRP), and ceramics.

[0005] like Figure 6 As shown in the existing research, Guo Rui conducted spherical projectile tests on a pyramid-shaped lattice metal structure with added hybrid short-cut glass fiber epoxy resin and ceramic rods, and the tests showed that its ballistic resistance was greatly improved. Figure 7 As shown, Yungwirth et al. filled a pyramidal lattice structure with polyurethane and alumina ceramics, and added a Kevlar fiber layer between the faceplate, backplate, and interlayer. The results showed that the gain effect of the ceramics was much greater than that of the polyurethane, while the addition of Kevlar did not provide a significant gain effect. Figure 8 As shown, CYNi studied the impact resistance of the pyramidal lattice structure in three cases: unfilled, filled with ceramic prisms, and filled with epoxy resin and ceramic. The results showed that the lattice structure filled with epoxy resin and ceramic prisms exhibited superior performance. Figure 9 As shown, Wadley filled alumina ceramics into a triangular aluminum alloy corrugated plate to study its anti-penetration mechanism. Compared with a homogeneous aluminum alloy plate with equal surface density, the ballistic limit velocity was increased by nearly 100 m / s. Summary of the Invention

[0006] The purpose of this invention is to provide a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert and its preparation method, which solves the problems of existing bulletproof inserts being too heavy and lacking in protective capabilities.

[0007] The technical solution of this invention is as follows:

[0008] A lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert, the bulletproof insert comprising: a trapezoidal aluminum alloy corrugated plate, a trapezoidal alumina ceramic prism, a UHMWPE fiber backing plate and an epoxy resin adhesive.

[0009] The trapezoidal aluminum alloy corrugated plate includes a surface plate, a bottom plate, and ribs. The surface plate and the bottom plate are connected by ribs, which are arranged in two ways: one with a "\" shape and the other with a " / " shape. The two types of ribs are arranged opposite each other. The space formed by the two types of ribs, the surface plate, and the bottom plate is a hollow trapezoidal prism. This hollow trapezoidal prism is matched with a trapezoidal alumina ceramic prism. The trapezoidal aluminum alloy corrugated plate and the trapezoidal alumina ceramic prism are clearance-fitted and fixed using epoxy resin adhesive. The trapezoidal aluminum alloy corrugated plate and the UHMWPE fiber backing plate are also bonded using epoxy resin adhesive.

[0010] Furthermore, the acute angle between the rib with a cross-section in the shape of "\" and the bottom plate is 45°-60°, and the acute angle between the rib with a cross-section in the shape of " / " and the top plate is 45°-60°.

[0011] Furthermore, the two acute angles within the cross-section of the trapezoidal alumina ceramic prism are both 60°, and the shorter side is 6mm.

[0012] Furthermore, the trapezoidal aluminum alloy corrugated plate is made of 6061-T6 aluminum alloy, the trapezoidal alumina ceramic prism is an alumina ceramic prism with an alumina content between [specific values ​​missing], and the UHMWPE fiber backing plate is made of ultra-high molecular weight polyethylene fiber. The epoxy resin adhesive is epoxy resin AB glue.

[0013] Furthermore, the trapezoidal aluminum alloy corrugated plate is processed from a single piece of 6061-T6 aluminum alloy plate using an extrusion method, and the trapezoidal alumina ceramic prism is formed by cutting the alumina ceramic plate with diamond blades.

[0014] This invention also provides a method for preparing a lightweight corrugated aluminum plate filled with a ceramic composite structure bulletproof insert, comprising the following steps:

[0015] Step 1: Clean the 6061 aluminum alloy billet of suitable size and quality to remove surface oil stains and other impurities. Heat the 6061 aluminum alloy billet to 500℃, put it into the extruder, and directly extrude it into shape using a pre-processed die press. Then, heat treat it to T6 grade.

[0016] Step 2: Cut the whole alumina ceramic plate with an alumina content of 96%-99.5% into trapezoidal alumina ceramic prisms using a diamond blade saw, and then use a grinder to smooth the cut surface.

[0017] Step 3: Prepare epoxy resin adhesive by mixing epoxy resin A and epoxy resin B, apply it to the surface of the prepared trapezoidal alumina ceramic prism, and fill it into the hollow trapezoidal prism of the trapezoidal aluminum alloy corrugated plate. The trapezoidal alumina ceramic prism and the hollow trapezoidal prism of the trapezoidal aluminum alloy corrugated plate are in a clearance fit, and the two are bonded together at the gap using epoxy resin adhesive.

[0018] Step 4: Apply the mixed epoxy resin adhesive to the back of the trapezoidal aluminum alloy corrugated sheet and the front of the UHMWPE fiber backing sheet, bond the two together, compact them, and let them stand for 24 hours to allow the epoxy resin adhesive to cure and solidify.

[0019] The beneficial effects of this invention are: by optimizing material selection, sandwich structure design, and filling material selection, this invention develops a high-protection, lightweight bulletproof insert.

[0020] 1. The present invention provides a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert, which introduces the corrugated structure in the lightweight porous structure, fills the holes of the corrugated structure with alumina ceramic material, and bonds UHMWPE fiberboard to the back. Alumina ceramic and aluminum alloy materials are inexpensive, lightweight and highly protective.

[0021] 2. The present invention provides a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert. In the processing of the corrugated structure, a hot extrusion method is adopted, and the corrugated aluminum plate is directly extruded into shape using a pre-processed mold, so as to realize the large-area production of corrugated aluminum plates; the trapezoidal alumina ceramic prism is made by cutting the alumina ceramic plate with diamond blades, which improves the material utilization rate and reduces the processing difficulty.

[0022] 3. The present invention provides a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert plate, wherein the trapezoidal aluminum alloy corrugated plate, the trapezoidal alumina ceramic prism, and the trapezoidal aluminum alloy corrugated plate and UHMWPE fiberboard are bonded with epoxy resin AB glue, which has high bonding strength, is easy to process and has good economy.

[0023] 4. Aluminum corrugated structures possess good mechanical properties and low density, but their inherent low hardness and poor protection at voids make them less resistant to ballistic impacts. Ceramic, as a hard material, enhances the overall structure's penetration capability against projectiles when filled in. Simultaneously, the corrugated structure provides support and constraint to the ceramic material, allowing broken ceramic fragments to continue eroding the projectile. The lower density of aluminum compared to ceramic also indirectly reduces the structure's weight. After impacting the corrugated aluminum plate filled with ceramic, the projectile experiences bulging and breakage, reducing its velocity and increasing the contact time and area between the projectile and the PE material, thus improving the PE fiber material's penetration resistance. Furthermore, the PE structure provides support to the corrugated aluminum plate, indirectly affecting the function of the internal ceramic, which acts as a backing plate supporting the overall composite structure.

[0024] 5. As a soft, high-performance fiber material, PE fiber mainly absorbs the energy of projectiles through large-area deformation, tensile fracture, but as a filler, it can affect the energy absorption of PE materials. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0027] Figure 3 This is a schematic diagram of the trapezoidal aluminum alloy corrugated plate structure in this invention;

[0028] Figure 4 This is a schematic diagram of the trapezoidal ceramic prism structure in this invention;

[0029] Figure 5 This is a schematic diagram of the structure of the UHMWPE fiberboard of the present invention;

[0030] Figure 6 This is a schematic diagram of a ceramic rod lattice filling structure in the background art;

[0031] Figure 7 This is a schematic diagram of a lattice structure filled with polyurethane / ceramic in the background art.

[0032] Figure 8 This is a schematic diagram of a ceramic epoxy resin lattice-filled structure in the background art;

[0033] Figure 9 This is a schematic diagram of a ceramic-filled corrugated aluminum plate structure in the background art;

[0034] Figure 10 Comparison of surface density and velocity attenuation ratio in numerical simulation of corrugated structures with different bottom angles and top bottom lengths.

[0035] Among them, 1-trapezoidal aluminum alloy corrugated plate; 2-trapezoidal alumina ceramic prism; 3-UHMWPE fiber backing plate; 4-epoxy resin adhesive;

[0036] 101-Surface plate, 102-Bottom plate, 103-Rib. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figures 1-5 As shown, this invention discloses a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert. The bulletproof insert includes: a trapezoidal aluminum alloy corrugated plate 1, a trapezoidal alumina ceramic prism 2, a UHMWPE fiber backing plate 3, and an epoxy resin adhesive 4. The trapezoidal aluminum alloy corrugated plate 1 includes a surface plate 101, a bottom plate 102, and ribs 103. The surface plate 101 and the bottom plate 102 are connected by ribs 103. The ribs 103 are arranged in two ways: one with a "\" shape and the other with a " / " shape. The two types of ribs are arranged opposite each other, and the space formed by the two types of ribs, the surface plate, and the bottom plate is a hollow trapezoidal prism. The acute angle between the rib with the "\" shape and the bottom plate is 45-60°, and the acute angle between the rib with the " / " shape and the surface plate 101 is 45°-60°. The hollow trapezoidal prism is matched with the trapezoidal alumina ceramic prism 2, and the trapezoidal alumina ceramic prism 2 can be freely inserted into the hollow trapezoidal prism.

[0039] The trapezoidal alumina ceramic prism has two acute angles of 60° in its cross section and a shorter side of 6 mm.

[0040] The trapezoidal aluminum alloy corrugated plate 1 is made of 6061-T6 aluminum alloy, the trapezoidal alumina ceramic prism 2 is an alumina ceramic prism with an alumina content between 96% and 99.5%, and the UHMWPE fiber backing plate 3 is made of ultra-high molecular weight polyethylene fiber. The epoxy resin adhesive 4 is epoxy resin AB glue.

[0041] The trapezoidal aluminum alloy corrugated plate 1 is processed from a single piece of 6061-T6 aluminum alloy plate using an extrusion method, and the trapezoidal alumina ceramic prism 2 is formed by cutting the alumina ceramic plate with a diamond blade saw.

[0042] The trapezoidal aluminum alloy corrugated plate 1 and the trapezoidal alumina ceramic prism 2 are gap-fitted and fixed with epoxy resin adhesive 4. The trapezoidal aluminum alloy corrugated plate 1 and the UHMWPE fiber backing plate 3 are bonded with epoxy resin adhesive 4, compacted and left for more than 24 hours.

[0043] A method for preparing a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert includes the following steps:

[0044] Step 1: Clean the 6061 aluminum alloy billet of suitable size and quality to remove surface oil stains and other impurities. Heat the 6061 aluminum alloy billet to 500℃, put it into the extruder, and directly extrude it into shape using a pre-processed die press. Then, heat treat it to T6 grade.

[0045] The shape and size of the molding die determine the shape and size of the required structure. Once the die is prepared, mass production can be achieved by simply repeating the above steps.

[0046] Step 2: Cut the whole alumina ceramic plate with an alumina content of 96%-99.5% into trapezoidal alumina ceramic prisms 2 using a diamond blade saw, and smooth the cut surface using a grinder.

[0047] Currently, the market price of alumina ceramics is 70-80 yuan / kg, silicon carbide ceramics are 350-400 yuan / kg, and boron carbide ceramics are 700-800 yuan / kg. It can be seen that alumina ceramics are the cheapest among them.

[0048] Step 3: Mix epoxy resin A and epoxy resin B in a 1:1 ratio to prepare an epoxy resin adhesive. Apply the adhesive to the surface of the prepared trapezoidal alumina ceramic prism 2, filling the hollow trapezoidal prism of the trapezoidal aluminum alloy corrugated plate 1. The trapezoidal alumina ceramic prism 2 and the hollow trapezoidal prism of the trapezoidal aluminum alloy corrugated plate 1 are in a clearance fit, and the two are bonded together at the gap using epoxy resin adhesive. Epoxy resin A includes epoxy resin components, mainly epoxy resin and additives (which may include solvents, diluents, etc.); epoxy resin B is the curing agent component, mainly amine compounds, such as polyetheramines, aliphatic amines, aromatic amines, etc.

[0049] Step 4: Apply the mixed epoxy resin adhesive to the back of the trapezoidal aluminum alloy corrugated plate 1 and the front of the UHMWPE fiber backing plate 3, bond the two together, compact them, and let them stand for 24 hours to allow the epoxy resin adhesive to cure and form.

[0050] Example 1

[0051] like Figure 1As shown, a lightweight corrugated aluminum plate filled with ceramic composite structure bulletproof insert is disclosed. The bulletproof insert includes: a trapezoidal aluminum alloy corrugated plate 1, a trapezoidal alumina ceramic prism 2, a UHMWPE fiber backing plate 3, and an epoxy resin adhesive 4. The trapezoidal aluminum alloy corrugated plate 1 includes a surface plate 101, a bottom plate 102, and ribs 103. The surface plate 101 and the bottom plate 102 are connected by ribs 103. The ribs 103 are arranged in two ways: one with a "\" shape and the other with a " / " shape. The two types of ribs are arranged opposite each other, and the space formed by the two types of ribs, the surface plate, and the bottom plate is a hollow trapezoidal prism. The acute angle between the rib with the "\" shape and the bottom plate is 60°, and the acute angle between the rib with the " / " shape and the surface plate is also 60°. The hollow trapezoidal prism is matched with the trapezoidal alumina ceramic prism 2, and the trapezoidal alumina ceramic prism 2 can be freely inserted into the hollow trapezoidal prism.

[0052] Figure 2 and Figure 3 The trapezoidal aluminum alloy corrugated plate 1 has a thickness of 12mm, a hollow trapezoidal prism with a top base of 6mm and a height of 8mm, and ribs with a thickness of 2mm. The trapezoidal alumina ceramic prism 2 has a top base of 6mm and a height of 8mm. The UHMWPE fiber backing plate has a thickness of 10mm.

[0053] The trapezoidal aluminum alloy corrugated plate 1 and the trapezoidal alumina ceramic prism 2 are fitted with a gap and fixed with epoxy resin adhesive 4. The trapezoidal aluminum alloy corrugated plate 1 and the UHMWPE fiber backing plate 3 are bonded with epoxy resin adhesive 4, compacted and left for more than 24 hours.

[0054] Test content:

[0055] The protective capability of a composite structure against projectile penetration can be characterized by the protection factor N. N represents the difference between the penetration depth of the projectile in a blank penetration test (metal plate, typically 603 armor steel in China) and the penetration depth of the armor steel following the composite structure. The expression is:

[0056] N=ρs(P0-Pr) / ρchc (Equation 1)

[0057] In equation (1), ρs and ρc are the densities of the homogeneous steel and the target plate, respectively; P0 is the penetration depth of the homogeneous steel in the blank experiment; P r The residual penetration depth of the ceramic target plate backing plate is 0 mm; h c The thickness of the composite target plate.

[0058] Example 1 (10mm thick UHMWPE material used entirely as backing)

[0059] A lightweight corrugated aluminum plate filled with a ceramic composite structure bulletproof insert, as described in Example 1, was used. The insert measures 300mm x 300mm, with a measured thickness of 22.2mm (the material processing had some error; uneven application of epoxy resin adhesive caused a 0.2mm error). A ballistic impact test was conducted at a distance of 3m using a Type 53 7.62mm armor-piercing projectile. The specific experimental data are as follows:

[0060] The projectile's incident velocity is 849.62 m / s. The UHMWPE fiber backing plate has a protrusion height of 19 mm. The calculated protection factor of the bulletproof insert is 2.91.

[0061] The experiment showed no penetration, and the protrusion height was less than 20mm, which can effectively protect against the Type 53 7.62mm armor-piercing projectile.

[0062] Comparative Examples 1-4

[0063] Table 1. Parameter data of lightweight composite armor in comparative examples 1-4

[0064] Comparative Example Corrugated ceramic structure (mm) PE panel thickness (mm) PE backing thickness (mm) Total structural thickness (mm) 1 12 5 5 22.5 2 12 6 4 22.3 3 12 4 6 22.4 4 12 10 - 22.2

[0065] In Comparative Examples 1-4, lightweight corrugated aluminum plates with ceramic composite structure bulletproof inserts of the specifications in Table 1 were used. The bulletproof inserts were 300mm × 300mm in size. Ballistic impact tests were conducted on Type 53 7.62mm armor-piercing projectiles at a distance of 3m. The specific experimental data are shown in Table 2.

[0066] Table 2 shows the experimental results of Comparative Examples 1-4.

[0067] Comparative Example Incident velocity (m / s) Experimental results Protrusion height (mm) Remaining velocity (m / s) 1 850.34 penetrate - 323.31 2 843.17 penetrate - 364.43 3 825.08 Not wearing 46 - 4 845.31 penetrate - 599.52

[0068] Example 1 uses 10mm thick UHMWPE material as the entire backing, while Example 4 uses UHMWPE material as the entire front panel. Tests show that PE fiber is needed as the backing to provide protection.

[0069] As can be seen from the above experimental examples and comparative examples, the bulletproof inserts in Example 1 and Comparative Example 3 were not penetrated. Furthermore, in Example 1, the protrusion height was only 19mm, and the entire 10mm thick UHMEPE backplate served as the backplate, further enhancing the energy absorption of the ceramic and aluminum plates and providing better protection. The composite structure of this invention can further improve the bulletproof resistance of the bulletproof inserts.

[0070] Referring to my country's GA141-2010 standard, the structure designed in Example 1 of this invention, compared to a commercially available GA4-grade alloy steel bulletproof plate weighing 3.5kg, reduces weight by 50g; simultaneously, it achieves a protection level of six, with the backplate protrusion height not exceeding 25mm as specified in the reference requirements. Experimental results show a 24% reduction compared to the standard value, demonstrating excellent overall protective performance. It should be noted that the specific dimensions, materials, and bonding methods of this invention vary depending on the target and requirements, and are not limited to the examples provided in this specification.

[0071] Based on common corrugated structure designs, the sandwich shape can include trapezoidal, triangular, rectangular, prismatic, and sinusoidal shapes. The selection of the corrugated structure needs to consider not only the processing of the corrugated plate itself, but also the processing difficulty of the ceramic. The sinusoidal shape is slightly more difficult to process for ceramic. The oblique ribs in the corrugated structure can play a certain deflection role for the projectile, so rectangular shapes are not considered. Triangular structures inevitably appear in prismatic structures, making the processing more complex. For the triangular and trapezoidal structures, preliminary research has been conducted using numerical simulation combined with ballistic tests to determine the final structure and dimensions. The following are the test experiments:

[0072] The average velocity drop and the average velocity decay ratio in the simulation data are summarized, and the areal density in the simulation data of each structure is calculated. The results are shown in Table 1 below:

[0073] Table 1 Data Comparison Table

[0074]

[0075] pass Figure 10 A clear trend can be observed. Calculations show that the composite structure with a 45° base angle and a 6mm top diameter increases surface density by about twice as much as the velocity reduction compared to the composite structure with a 60° base angle and a 6mm top diameter. Considering that the 60° base angle is easier to process and has more pores on the projectile-facing surface under the condition of equal area, which is beneficial to improving the composite structure's ability to withstand multiple projectiles, the trapezoidal composite structure with a 60° base angle and a 6mm top diameter was selected as the final structure.

[0076] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A lightweight corrugated aluminum panel filled ceramic composite structure bulletproof panel, characterized in that, include: Trapezoidal aluminum alloy corrugated sheet, trapezoidal alumina ceramic prism, UHMWPE fiber backing and epoxy resin adhesive; The trapezoidal aluminum alloy corrugated plate includes a surface plate, a bottom plate, and ribs. The surface plate and the bottom plate are connected by ribs, which are arranged in two ways: one with a "\" shape and the other with a " / " shape. The space formed by the two types of ribs, the surface plate, and the bottom plate is a hollow trapezoidal prism. This hollow trapezoidal prism is matched with a trapezoidal alumina ceramic prism. The trapezoidal aluminum alloy corrugated plate and the trapezoidal alumina ceramic prism are in a clearance fit and are fixed with epoxy resin adhesive. The trapezoidal aluminum alloy corrugated plate and the trapezoidal alumina ceramic prism are bonded with epoxy resin adhesive. The thickness of the UHMWPE fiber backing plate is 10mm. Two types of ribs are arranged opposite each other; The acute angle between the rib with a cross-section in the shape of "\" and the bottom plate is 60°, and the acute angle between the rib with a cross-section in the shape of " / " and the top plate is 60°. The trapezoidal alumina ceramic prism has two acute angles of 60° in its cross-section and a shorter side of 6 mm.

2. The lightweight corrugated aluminum panel filled ceramic composite structure bulletproof panel according to claim 1, characterized in that, in, The trapezoidal aluminum alloy corrugated plate is made of 6061-T6 aluminum alloy, the trapezoidal alumina ceramic prism is an alumina ceramic prism with an alumina content between 96% and 99.5%, the UHMWPE fiber backing is unbranched linear polyethylene with a molecular weight of more than 1.5 million, and the epoxy resin adhesive is epoxy resin AB glue.

3. The lightweight corrugated aluminum panel filled ceramic composite structure bulletproof panel according to claim 1, characterized in that, The trapezoidal aluminum alloy corrugated plate is processed from a single piece of 6061-T6 aluminum alloy plate using an extrusion method, and the trapezoidal alumina ceramic prism is cut from the alumina ceramic plate using diamond blades.

4. The method of manufacturing a ceramic composite structure filled bulletproof panel of a light-weight corrugated aluminum plate according to claim 1, wherein, Includes the following steps: Step 1: Clean the 6061 aluminum alloy billet with suitable size and quality, heat the 6061 aluminum alloy billet to 500℃, put it into the extruder, and directly extrude it into shape using the processed die press. Then, it is heat treated to T6 grade. Step 2: Cut the whole alumina ceramic plate with an alumina content of 96%-99.5% into trapezoidal alumina ceramic prisms using a diamond blade saw, and smooth the cut surface using a grinder. Step 3: Prepare epoxy resin adhesive by mixing epoxy resin A and epoxy resin B, apply it to the surface of the prepared trapezoidal alumina ceramic prism, and fill it into the hollow trapezoidal prism of the trapezoidal aluminum alloy corrugated plate. The trapezoidal alumina ceramic prism and the hollow trapezoidal prism of the trapezoidal aluminum alloy corrugated plate are in a clearance fit, and epoxy resin adhesive is used to bond the two together at the gap. Step 4: Apply the mixed epoxy resin adhesive to the back of the trapezoidal aluminum alloy corrugated sheet and the front of the UHMWPE fiber backing sheet, bond the two together, compact them, and let them stand for 24 hours to allow the epoxy resin adhesive to cure and solidify.

5. The method of claim 4, wherein the ceramic composite structure is filled with a lightweight corrugated aluminum panel. Step 1 also includes removing oil stains from the surface of the 6061 aluminum alloy blank.

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