Composite member and method for processing thereof

Abstract

The application provides a composite component and a processing method thereof. The composite component comprises a first component and a second component which are formed by laminating different materials. The processing method comprises the following steps: a first hole is opened through the first component, and part of the second component is exposed to the first hole; a filling block is formed by filling the material of the second component in the first hole by using a laser 3D printing technology, and the filling block is connected to the part of the second component exposed to the first hole; a second hole is opened through the filling block, the inner wall material of the second hole is the same as the material of the second component, and the second hole further extends to the second component connected to the filling block. The processing method provided by the application can improve the connection strength and the combination tightness between the filling block and the first component, and is also suitable for composite components with different thicknesses.

Description

Technical Field

[0001] This application relates to the field of sealing technology, and in particular to a composite component and its processing method. Background Technology

[0002] In related technologies, some composite components are formed by combining components made of two or more different materials. When composite components are used in 3C products, holes need to be made in the composite component to allow the different components to pass through, so that the composite component can be assembled onto the product using fasteners or other parts. However, gaps will appear in the hole walls at the joints of the different components. These gaps are exposed to the outside environment and are susceptible to corrosion, resulting in poor sealing. Summary of the Invention

[0003] In view of this, this application provides a composite component and its processing method to solve the above problems.

[0004] This application provides a method for processing a composite component, the composite component including a first component and a second component formed by stacking different materials, the processing method including: opening a first hole through the first component, with a portion of the second component exposed in the first hole; using laser 3D printing technology to fill the first hole with the material of the second component to form a filler block, the filler block connecting the portion of the second component exposed in the first hole; opening a second hole through the filler block, the inner wall material of the second hole being the same as the material of the second component, the second hole also extending to the second component connecting the filler block.

[0005] In some embodiments, when the first hole is formed, the first hole also extends to the second member, and the depth of the first hole is greater than the thickness of the first member.

[0006] In some embodiments, an inclined surface is connected between the inner wall and the bottom wall of the first hole in the second member, the inclined surface being obliquely connected between the inner wall and the bottom wall of the first hole.

[0007] In some embodiments, the depth of the first hole located in the second member is h, where 0.1 mm ≤ h ≤ 0.5 mm.

[0008] In some embodiments, the filler block includes a plurality of unit layers arranged axially along the first hole. During laser 3D printing, a laser melts the substrate along a path radially set in the first hole to obtain a unit layer, and the plurality of unit layers are stacked along the axial direction of the first hole to form the filler block.

[0009] In some embodiments, during laser 3D printing, the laser moves away from the second component along the axial direction of the first hole and melts the substrate to obtain the filler block.

[0010] In some embodiments, the included angle between the inner wall of the first hole and the bottom wall of the first hole is θ, where θ ≥ 90°.

[0011] In some embodiments, the height of the filler block protruding from the second component is H1, the thickness of the first component is H2, and H1≥(0.5-1)·H2; after the second hole is opened, the wall thickness of the filler block is greater than or equal to 0.5mm.

[0012] This application also provides a composite component prepared by the processing method described above.

[0013] In some embodiments, the first component is made of aluminum or an aluminum alloy, and the second component is made of titanium or a titanium alloy.

[0014] In this application, laser 3D printing technology is used to fill the first hole with a filler block made of the same material as the second component. The filler block is fused together with the second component and the inner wall of the first hole, so that the first hole is completely covered by the filler block. The filler block can completely wrap the joint line between the first and second components at the first hole, thus isolating the joint line from the outside and improving the sealing performance of the joint line. At the same time, a second hole is opened through the filler block to facilitate subsequent processing and assembly. In the processing method of composite components, when the composite component is processed using laser 3D printing technology, the surface of the second component exposed in the first hole will melt during the laser melting process, thereby fully bonding the second component with the filler block of the same material, improving the connection strength between the second component and the filler block. During the melting process, the filler block and the hole wall of the first hole melt and tightly bond together, thereby improving the connection strength and tightness between the filler block and the first component. The processing method of this application is applicable to composite components of different thicknesses and different shapes of the first hole, with strong versatility. Moreover, the height and wall thickness of the filler block can be adjusted according to needs to meet different requirements. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a composite component provided in an embodiment of this application.

[0016] Figure 2 for Figure 1 A top view of the first component of the composite component shown in some embodiments.

[0017] Figure 3 for Figure 1 The first component of the composite component shown is a top view in some other embodiments.

[0018] Figure 4 A cross-sectional view of a composite component provided in another embodiment of this application.

[0019] Figure 5 A cross-sectional view of a composite component provided in another embodiment of this application.

[0020] Figure 6 A cross-sectional view of a composite component provided in another embodiment of this application.

[0021] Figure 7 This is a cross-sectional view of the first member after a first hole is made in one embodiment of this application.

[0022] Figure 8 In order to be in Figure 7 The cross-sectional view shown is after a filler block has been installed in the first hole.

[0023] Figure 9 In another embodiment Figure 7 The cross-sectional view of the first component after the first hole is made.

[0024] Figure 10 In order to be in Figure 1 The cross-sectional view of the filling block after the groove is set.

[0025] Figure 11a This is a cross-sectional view of the filler block filling the first hole of the aluminum component in Embodiment 1; Figure 11b for Figure 11a The image shows a cross-sectional view of the filler block after processing.

[0026] Figure 12a This is a cross-sectional view of the filler block filling the first hole of the aluminum component in Embodiment 2; Figure 12b for Figure 12a In the middle, the filling block is processed to obtain a cross-sectional view with multiple second holes.

[0027] Explanation of main component symbols

[0028] Composite components 100, 100'

[0029] First component 10

[0030] First hole 11, 11'

[0031] Incline 12

[0032] First groove 13

[0033] Second component 20

[0034] Second grooves 21, 21'

[0035] mating surface 30

[0036] Combination lines 31, 31'

[0037] Filler blocks 40, 40'

[0038] Second hole 41, 41'

[0039] Aluminum components 60

[0040] Titanium components 70

[0041] First direction X

[0042] Second direction Y

[0043] Third direction Z

[0044] The following detailed implementation methods will be combined with the above appendix. Figure 1-12b Further explanation of this application. Detailed Implementation

[0045] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0048] To further illustrate the technical means and effects adopted by this application in achieving its intended purpose, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments.

[0049] Please see Figure 1This application provides a method for processing a composite component 100. The composite component 100 includes a first component 10 and a second component 20 formed by stacking different materials along a first direction X, with a bonding surface 30 formed between the first component 10 and the second component 20. The first component 10 can be a metallic or non-metallic material. For example, the metallic material can be iron, copper, magnesium, titanium, aluminum, iron alloys, magnesium alloys, titanium alloys, aluminum alloys, or stainless steel; the non-metallic material can be plastic, rubber, or ceramic. The second component 20 can also be any of the aforementioned metallic or non-metallic materials, but the materials of the first component 10 and the second component 20 are different.

[0050] The first component 10 and the second component 20 form a joint line 31 at the joint surface 30. The joint line 31 can be circular, elliptical, square, or polygonal in shape. The first component 10 has a first hole 11, and the number of first holes 11 can be one. Figure 2 and Figure 3 As shown, the number of first holes 11 can be multiple, and the shape of each first hole 11 can be set according to actual needs. Viewed from the first direction X, the shape of the first hole 11 can be as follows: Figure 2 The wavy, cross-shaped, or heart-shaped forms shown can also be irregular shapes. Viewed from the first direction X, multiple first holes 11 can be as follows... Figure 3 The ones shown have the same shape, but the inner diameters of the multiple first holes 11 are different.

[0051] See Figure 1 A portion of the surface of the second component 20 is exposed to the first hole 11. A filler block 40 is also provided within the first hole 11 of the first component 10, and the filler block 40 is bonded to the inner wall of the first hole 11. The filler block 40 extends from the surface of the second component 20 exposed to the first hole 11 and wraps around the bonding line 31 and the inner wall of the first hole 11. This wrapping improves the stability of the inner wall of the first hole 11. The filling block 40 shields the bonding line 31 and the inner wall of the first hole 11, isolating the bonding line 31 from the outside environment and preventing corrosion or air leakage, thereby improving the sealing performance of the bonding line 31. The filler block 40 is obtained through laser 3D printing technology and fused together with the second component 20. This technology allows for the production of filler blocks 40 of different shapes and heights, offering strong applicability.

[0052] Along the first direction X, a second hole 41 is formed on the filler block 40, extending through the filler block 40 and reaching the second member 20 connecting the filler block 40. The second hole 41 can penetrate the second member 20 (see...). Figure 1 The second hole 41 can also be a blind hole (see...). Figure 4 Both structures allow the composite component 100 to be mounted on the product by installing fasteners (such as screws, bolts, etc.) in the second hole 41.

[0053] The filler block 40 is made of the same material as the second component 20. When the filler block 40 and the second component 20 are joined using laser 3D printing technology, the use of the same material further enhances the bonding strength between the filler block 40 and the second component 20. Viewed from the first direction X, the outer contour of the filler block 40 matches the shape of the inner wall of the first hole 11. In some embodiments, the outer contour of the filler block 40 is circular, square, or polygonal.

[0054] The inner wall material of the second hole 41 is the same as that of the second component 20, so that the composite component 100 can be surface treated (such as an anodizing process) in the future, so that the same film is formed on the inner wall of the second hole 41 and the second component 20 and the film thickness is the same, which is not easy to crack.

[0055] See Figure 5 In other embodiments, the end of the filling block 40 away from the second member 20 and the inner wall of the first hole 11 also form a first groove 13. The first groove 13 communicates with the second hole 41. The setting of the first groove 13 can provide clearance space for the fastener and help improve the flatness of the surface of the first member 10.

[0056] In some embodiments, the surface of the second member 20 away from the first member 10 is recessed to form a second groove 21, which communicates with the second hole 41. The second groove 21 and the first groove 13 are disposed opposite to each other. Fasteners can pass through the first groove 13, the second hole 41, and the second groove 21 to fasten the first member 10 and the second member 20. The second groove 21 provides clearance space for the fasteners.

[0057] See Figure 6 In another embodiment, the first groove 13 is located on the filler block 40 and can be formed by a recess in the inner wall of the second hole 41 and communicate with the second hole 41. This arrangement ensures that the inner wall of the first component 10 located in the first hole 11 is always covered and fully bonded to the filler block 40, which can increase the bonding area between the filler block 40 and the first component 10 to a certain extent, thereby improving the bonding strength between the two.

[0058] See Figure 1 , Figures 7-9 This application also provides a method for processing a composite component 100, the composite component 100 including a first component 10 and a second component 20 formed by stacking different materials, the processing method including the following steps:

[0059] S1. See also Figure 7 A first hole 11 is made in the first component 10, and part of the second component 20 is exposed through the first hole 11.

[0060] The mating surface 30 of the first component 10 and the second component 20 forms a mating line 31 at the first hole 11.

[0061] In some embodiments, the included angle between the inner wall of the first hole 11 and the bottom wall of the first hole 11 is θ, where θ ≥ 90°. This arrangement facilitates the laser irradiation of the bottom wall of the first hole 11 during the subsequent laser sintering process, thus improving the laser sintering and melting of the substrate. In some embodiments, θ is 90°, 100°, 110°, 120°, or 130°.

[0062] In some embodiments, the depth of the first hole 11 is less than 6 mm to avoid the operation being hindered by an excessively large depth of the first hole 11.

[0063] S2. See Figure 8 A filler block 40 is formed in the first hole 11 using laser 3D printing technology. The filler block 40 is connected to the second component 20 exposed in the first hole 11. The filler block 40 and the second component 20 are made of the same material.

[0064] The filling block 40 inside the first hole 11 can cover the inner wall of the first hole 11 and the connecting line 31. The connecting line 31 is blocked, thus isolating the connecting line 31 from the outside world and improving the sealing performance of the connecting line 31.

[0065] Using laser 3D printing technology, the surface of the second component 20 exposed in the first hole 11 melts during the laser melting process, continuously melting a substrate of the same material as the second component 20. The molten substrate first fuses with the molten surface of the second component 20. As the substrate continues to melt and solidify within the first hole 11, the height of the substrate filling the first hole 11 gradually increases, forming a filler block 40 after cooling. The shape and size of the filler block 40 are adapted to the shape and size of the first hole 11. In other embodiments, the height of the filler block 40 may also be less than the thickness of the first component 10. Laser 3D printing technology can be used to produce filler blocks 40 of different heights.

[0066] In the process of forming the filler block 40 in the above scheme, the second component 20 and the laser-melted substrate are fully fused together, so that the second component 20 and the filler block 40 are fully combined and form an integral structure, which improves the connection strength between the second component 20 and the filler block 40. In the melting process, the formed filler block 40 and the inner wall of the first hole 11 are melted and tightly bonded, thereby improving the connection strength and bonding tightness between the filler block 40 and the first component 10. The filler block 40 also covers the inner wall of the first hole 11 and the bonding line 31.

[0067] See Figure 9In some embodiments, in step S1, when the first hole 11 is opened, the first hole 11 also extends to the second component 20. The depth of the first hole 11 is greater than the thickness of the first component 10, so as to increase the bonding area of ​​the filler block 40 and the second component 20, which is conducive to the full fusion of the filler block 40 and the second component 20 and improves the bonding strength of the filler block 40 and the second component 20.

[0068] See Figure 9 In some embodiments, in step S1, a ramp 12 is connected between the inner wall and the bottom wall of the first hole 11 in the second component 20. The ramp 12 is inclined between the inner wall and the bottom wall of the first hole 11. The ramp 12 is designed to avoid the narrow space formed at the corner where the inner wall and the bottom wall of the first hole 11 connect when using laser 3D printing technology, so that the filler block 40 can be fully fused with the second component 20 in the first hole 11, eliminating the influence of the narrow space on the bonding of the filler block 40 and the second component 20. The ramp 12 extends around the connection between the bottom wall and the inner wall of the first hole 11 to minimize the narrow space at the corner where the inner wall and the bottom wall of the first hole 11 connect. In some embodiments, the inclination angle of the ramp 12 relative to the bottom wall is 30°-45°, such as 30°, 40° or 45°.

[0069] See Figure 9 In some embodiments, the depth of the first hole 11 in the second component 20 is h, where 0.1 mm ≤ h ≤ 0.5 mm. By ensuring that the depth h of the first hole 11 in the second component 20 is sufficient to guarantee full fusion of the filler block 40 and the second component 20, the cutting of the second component 20 is reduced, which also reduces the laser ablation operation time to some extent. In some embodiments, h can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, or 0.5 mm.

[0070] In some embodiments, the filler block 40 includes multiple unit layers (not shown) arranged axially along the first hole 11. During laser 3D printing, the laser melts the substrate along a first path set in the second direction Y and a second path set in the third direction Z to obtain a unit layer; that is, the laser melts the substrate along a path radially set in the axial direction of the first hole 11 to obtain a unit layer. Multiple unit layers are stacked along the first direction X to form the filler block 40, where the first direction X is perpendicular to the surface formed by the second direction Y and the third direction Z. The axis of the first hole 11 is set along the first direction X, and the radial direction of the first hole 11 is parallel to the plane containing the second direction Y and the third direction Z. The above method can be applied to large-sized, irregularly shaped holes, forming a filler block 40 adapted to the first hole 11 by stacking multiple unit layers. In some embodiments, during laser 3D printing, if the inner diameter of the first hole 11 is small, the laser melts the substrate and moves along the axial direction of the first hole 11. The melted substrate continuously melts and solidifies in the axial direction of the first hole 11 to form the filler block 40. In this embodiment, laser 3D printing technology can be applied to the first hole 11 with different inner diameters, which is highly versatile and has a wide range of applications.

[0071] S3. See Figure 1 A second hole 41 is made through the filling block 40. The inner wall material of the second hole 41 is the same as that of the second component 20. The second hole 41 also extends to the second component 20 that connects to the filling block 40.

[0072] The processing method provided in this application is applicable to composite components 100 of different thicknesses, and also to first holes 11 of different shapes. It has strong versatility, and the height and wall thickness of the filling block 40 can be adjusted according to requirements to meet different needs.

[0073] In some embodiments, along the first direction X, the height of the filler block 40 is H1, and the thickness of the first member 10 is H2, where H1 ≥ (0.5-1)·H2. Within this range, the bonding strength between the filler block 40 and the first member 10 can be improved. For example, H1 is equal to 0.5H2, 0.6H2, 0.7H2, or H2.

[0074] In some embodiments, after the second hole 41 is opened, the wall thickness of the filler block 40 is greater than or equal to 0.5 mm to ensure the structural strength of the filler block 40 and meet production requirements.

[0075] A second hole 41 is drilled in the filler block 40 to process the filler block 40 and form a hole structure, which facilitates the subsequent installation of fasteners. In some embodiments, multiple second holes 41 arranged side by side may be drilled in the filler block 40. The methods for forming the second hole 41 in the filler block 40 include drilling, CNC milling, etc.

[0076] See Figure 10In other embodiments, the second hole 41 is formed by milling the filler block 40. Grooves of different depths can also be milled on the inner wall of the second hole 41 to allow the wall thickness of the filler block 40 to be set as needed. Furthermore, this application uses laser 3D printing technology to form the filler block 40 within the first hole 11. The wall thickness and height of the filler block 40 can be customized to meet the requirements of different application scenarios, satisfying the bonding strength requirements between the filler block 40 and the first component 10, as well as the bonding strength requirements between the filler block 40 and the second component 20, thus having a wide range of applications. In other embodiments, the number of second holes 41 formed on the filler block 40 can also be adjusted as needed.

[0077] See Figure 5 In some embodiments, the composite member 100 is further milled to form a first groove 13 on the first member 10, the first groove 13 communicating with the second hole 41. Specifically, this can be formed by milling the end of the partial filler block 40 or milling the inner wall of the partial filler block 40 (see...). Figure 5 and Figure 6 Simultaneously, a second groove 21 is formed on the second component 20 by milling, and the second groove 21 communicates with the second hole 41. The shape and depth of the first groove 13 and the second groove 21 can be set according to actual needs.

[0078] In the processing method of the composite component 100 described above, the material of the first component 10 is aluminum or aluminum alloy, and the material of the second component 20 is titanium or titanium alloy. For example, if the material of the first component 10 is aluminum and the material of the second component 20 is titanium, when the composite component 100 undergoes a chemical anodizing process, a titanium film layer (not shown) is formed on the inner wall of the second hole 41. The thickness of the titanium film layer is uniform. Since the first component 10 and the second component 20 are shielded and sealed at the joint line 31 of the first hole 11 by the titanium material filling block 40, the first component 10 and the second component 20 can be prevented from cracking at the joint line 31 when the composite component 100 is subsequently placed in a high-temperature environment (such as 140°C in the PVD process), thereby improving the service life of the composite component 100.

[0079] The present application will be described below through specific embodiments. The specific embodiments are illustrated by using aluminum as the first component 10 and titanium as the second component 20.

[0080] Example 1

[0081] Aluminum component 60 and titanium component 70 are stacked along the first direction X to form a composite component 100'. Two first holes 11' are formed in the aluminum component 60. Using 3D printing technology, titanium wire is melted to form filler blocks 40' within both first holes 11'. The titanium wire diameter is 1.0 mm, the laser voltage is 5V, the laser current is 1A, the laser output power is 1000W, the deposition rate for forming the filler blocks 40' is 200 mm / min, and the E output is 18. The height of the filler block 40' is greater than the thickness of the aluminum component 60, and the filler block 40' extends beyond the aluminum component 60. Figure 11a .

[0082] The filler block 40' is machined by milling, specifically the portion of the filler block 40' that protrudes from the aluminum component 60, and a second hole 41' is made in the filler block 40'. Figure 11b A second groove 21' is also provided on the aluminum component 60. The second groove 21' communicates with two second holes 41'. The filling block 40' is tightly fitted to the inner wall of the aluminum component 60, and the height of the filling block 40' is the same as the height of the aluminum component 60. Figure 11a and Figure 11b It can also be seen that the filling block 40' seals and protects the joint line 31 of the titanium component 70 and the aluminum component 60 and the inner wall of the first hole 11' at the first hole 11'.

[0083] Example 2

[0084] The difference between Example 2 and Example 1 is that the laser voltage is 5V, the laser current is 10A, the laser output power is 600W, the deposition rate for forming the 40' filler block is 480mm / min, and the output is 48. The inner diameter of the first hole 11' is larger than that of the first hole 11' in Example 1, see... Figure 12a The filler block 40' has multiple second holes 41', see Figure 12b .

[0085] This application conducts a pore gas-proof test on the composite component 100' prepared in Example 1. A sealing ring is used to form a partial seal at the first hole 11' of the composite component 100', and the sealed space is filled with air at a pressure of 1.25 Bar. The gas-proof test shows a leakage value of <0.05 sccm (within the component's required specification range) after 30 seconds. This indicates that the sealing joint line 31 of the aforementioned filler block 40' has good sealing performance, achieving a sealing and corrosion-proof effect, and meeting actual production needs.

[0086] This application also tests the bonding force between the filler block 40' and the titanium component 70 in Embodiment 1. Specifically, a hole can be made in the titanium component 70 at the position corresponding to the filler block 40'. Taking a cylindrical filler block 40' as an example, the wall thickness of the filler block 40' is 0.5 mm, that is, the wall thickness of the connection between the filler block 40' and the titanium component 70 is 0.5 mm. During the test, along the opposite direction of the first direction X, the pusher block is pushed against the filler block 40' through the hole and a pushing force is applied to the filler block 40'. The required pushing force is >50 kgf, which indicates that the bonding force between the filler block 40' and the titanium component 70 is at least greater than 50 kgf. Under the same test conditions, if the wall thickness of the filler block 40' is 0.82 mm, the required pushing force is >150 kgf, that is, the bonding force between the filler block 40' and the titanium component 70 is at least greater than 150 kgf. This indicates that, within a certain range, the thicker the wall thickness of the connection between the filler block 40' and the titanium component 70, and the larger the bonding area, the higher the bonding strength between the two.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A method for processing a composite component, said composite component comprising a first component and a second component formed by stacking different materials, characterized in that, The processing method includes: A first hole is made through the first component, and a portion of the second component is exposed through the first hole. When the first hole is made, the first hole also extends into the second component. The depth of the first hole is greater than the thickness of the first component. The depth of the first hole in the second component is h, where 0.1 mm ≤ h ≤ 0.5 mm. An inclined surface is connected between the inner wall and the bottom wall of the first hole in the second component. The inclined surface is obliquely connected between the inner wall and the bottom wall of the first hole and extends around the connection between the bottom wall and the inner wall of the first hole. Laser 3D printing technology is used to fill the first hole with the material of the second component to form a filler block, and the filler block connects to the portion of the second component exposed in the first hole; A second hole is made through the filler block, the inner wall of the second hole being made of the same material as the second component, and the second hole also extends to the second component connecting the filler block.

2. The processing method as described in claim 1, characterized in that, The filler block includes multiple unit layers arranged axially along the first hole. During laser 3D printing, the laser melts the substrate along a path radially set in the first hole to obtain a unit layer. Multiple unit layers are stacked along the axial direction of the first hole to form the filler block.

3. The processing method as described in claim 1, characterized in that, During laser 3D printing, the laser moves away from the second component along the axis of the first hole and melts the substrate to obtain the filler block.

4. The processing method as described in claim 1, characterized in that, The included angle between the inner wall of the first hole and the bottom wall of the first hole is θ, where θ ≥ 90°.

5. The processing method according to any one of claims 1 to 4, characterized in that, The height of the filling block protruding from the second component is H1, the thickness of the first component is H2, and H1≥(0.5-1)·H2; after the second hole is opened, the wall thickness of the filling block is greater than or equal to 0.5mm.

6. A composite component prepared by the processing method according to any one of claims 1 to 5.

7. The composite component as described in claim 6, characterized in that, The first component is made of aluminum or an aluminum alloy, and the second component is made of titanium or a titanium alloy.

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