Steel-aluminum wheel and machining method thereof

Abstract

The invention relates to the technical field of automobile parts, in particular to a steel-aluminum wheel and a machining method thereof. The rim comprises a connecting area, and the spoke comprises a connecting part; the connecting area is located at the end of the side, facing the spoke, of the rim, and the end, close to the spoke, of the connecting area extends in the direction of the spoke and is connected with the connecting part. A mounting groove is formed in the connecting part, a fixing assembly is mounted in the mounting groove, and the side, deviating from the mounting groove, of the fixing assembly is connected with the rim. According to the steel-aluminum wheel, the production method can be simplified, the production efficiency can be effectively improved, and the product quality can be fully guaranteed. The invention further provides a machining method of the steel-aluminum wheel, so that the whole production and machining process is simple, the production difficulty is effectively reduced, the production efficiency can be effectively improved, the production energy consumption is reduced, and the quality of produced products is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a steel-aluminum wheel and a processing method thereof. Background Art

[0002] Automobile wheels are the components of automobile parts that are designed for sports, appearance and safety. Steel and aluminum wheels have their own advantages and disadvantages. Therefore, combining steel rims with aluminum spokes with composite wheels can maximize their respective advantages.

[0003] Since steel and aluminum cannot be directly connected by welding, the existing steel-aluminum wheels will embed steel sheets inside the spokes when casting the aluminum spokes, and then weld the steel sheets to the steel rims. Since steel and aluminum have different thermal shrinkage ratios, the entire casting process will be too complicated and costly, and will also result in lower product quality and lower production efficiency. Summary of the invention

[0004] (I) The present invention provides a steel-aluminum wheel, which alleviates the technical problems of high production difficulty and low production efficiency caused by pre-embedded steel sheets in the prior art.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a steel-aluminum wheel, including a rim and a spoke;

[0007] The rim includes a connection area, and the spoke includes a connection portion; the connection area is located at the end of the rim facing the spoke, and one end of the connection area close to the spoke extends toward the spoke and is connected to the connection portion;

[0008] The connecting portion is provided with an installation groove, a fixing component is installed in the installation groove, and a side of the fixing component facing away from the installation groove is connected to the rim.

[0009] Further, the fixing assembly includes a first connecting ring and / or a second connecting ring, and the mounting groove includes a first mounting groove and / or a second mounting groove;

[0010] The first mounting groove is formed at the bead seat or bottom groove of the wheel spoke corresponding to the wheel rim, and the second mounting groove is formed at the junction of the wheel spoke and the end of the connecting area;

[0011] The first connecting ring is sleeved in the first mounting groove, and the second connecting ring is sleeved in the second mounting groove.

[0012] Furthermore, the first mounting groove is formed at a bottom groove of the spoke corresponding to the rim, and the first connecting ring is sleeved in the first mounting groove.

[0013] Furthermore, an outer edge of the connection area close to the spoke coincides with an outer edge of the bottom groove.

[0014] Furthermore, the fixing assembly also includes a fixing member;

[0015] The fixing member passes through the rim, the first connecting ring and the spokes;

[0016] Alternatively, the fixing member passes through the first connecting ring and the spoke;

[0017] Alternatively, the fixing member passes through the rim and the spokes.

[0018] Furthermore, the inner bottom wall of the mounting groove is a plane, or an inclined surface, or a curved surface, or a stepped surface.

[0019] The present invention also provides a method for processing a steel-aluminum wheel, comprising the above-mentioned steel-aluminum wheel and the following steps:

[0020] S1, processing and forming the spoke, and processing the mounting groove at a position of the spoke corresponding to the rim;

[0021] S2, forming the rim and the connecting ring, and assembling the connecting ring, the rim and the spokes;

[0022] S3, painting.

[0023] Furthermore, in S1, the wall thickness D of the outer side of the spoke is ≥ 1.5 mm;

[0024] The depth W of the first mounting groove is in the range of 2-30 mm, and the width L of the first mounting groove is in the range of 1.5-10 mm;

[0025] The depth W1 of the second mounting groove is in the range of 3-15 mm, and the width L of the second mounting groove is in the range of 1.5-5.5 mm.

[0026] Furthermore, in S2, the connecting ring is one-piece or split, and during assembly, the connecting ring is first installed in the mounting groove and then fixed by a fixing member passing through the connecting ring and the spoke, and then the rim and the spoke are assembled, or, the connecting ring is first installed in the mounting groove, and then the rim and the spoke are assembled, and then a fixing member is passed through the connecting ring, the rim and the spoke to fix them.

[0027] Furthermore, in S3, the spokes and the rim are press-fitted, and the connecting ring and the rim are welded at corresponding positions.

[0028] Beneficial effects of the present invention:

[0029] The present invention provides a steel-aluminum wheel, comprising a rim and spokes, wherein the rim comprises a connecting area, and the spokes comprise a connecting portion, wherein the connecting area is located at the end of the rim facing the spoke, and one end of the connecting area close to the spoke extends toward the spoke and is connected to the connecting portion, wherein a mounting groove is provided on the connecting portion, and a fixing assembly is installed in the circumferential direction of the mounting groove to fix the mounting ring and the spoke together, and then the mounting ring and the rim are fixed together by connecting the fixing assembly to the rim at a side away from the mounting groove, thereby fixing the spoke and the rim of different materials together, and the interference fit between the mounting groove and the fixing assembly and the fixing assembly replace the method of pre-embedded connecting parts in the spoke, thereby simplifying the production method, significantly reducing the production difficulty, and the principle is clear, which can effectively improve the production efficiency and fully guarantee the quality of the product.

[0030] The present invention also provides a method for processing a steel-aluminum wheel, which simplifies the entire production and processing process of the steel-aluminum wheel and effectively reduces the production difficulty, thereby effectively improving production efficiency, reducing production energy consumption, and ensuring the quality of the products produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a steel-aluminum wheel provided in an embodiment of the invention;

[0033] Figure 2 A schematic diagram of the structure of a second steel-aluminum wheel provided in an embodiment of the invention;

[0034] Figure 3 A schematic diagram of the structure of a third steel-aluminum wheel provided in an embodiment of the invention;

[0035] Figure 4 A schematic diagram of the structure of a fourth steel-aluminum wheel provided in an embodiment of the invention;

[0036] Figure 5 A schematic structural diagram of a fifth steel-aluminum wheel provided in an embodiment of the invention;

[0037] Figure 6 A schematic diagram of the structure of a sixth steel-aluminum wheel provided in an embodiment of the invention;

[0038] Figure 7 A schematic diagram of the structure of a seventh steel-aluminum wheel provided in an embodiment of the invention;

[0039] Figure 8 A schematic structural diagram of an eighth steel-aluminum wheel provided in an embodiment of the invention;

[0040] Fig. 9 A schematic diagram of various connections corresponding to the bead seat of another steel-aluminum wheel provided in an embodiment of the invention and a schematic diagram of the shape of the bottom wall inside the mounting groove;

[0041] Fig.10 A schematic diagram of various connections corresponding to the bottom groove of another steel-aluminum wheel provided in an embodiment of the invention.

[0042] icon:

[0043] 100-wheel rim; 101-first connecting ring; 102-second connecting ring; 103-bead seat; 104-bottom groove;

[0044] 200-spoke; 201-connecting portion; 202-first mounting groove; 203-second mounting groove;

[0045] 300-fixing parts;

[0046] 400-solder points. DETAILED DESCRIPTION

[0047] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the inside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0050] like Figures 1 to 10 As shown, the present invention provides a steel-aluminum wheel, including a rim 100 and a spoke 200; the rim 100 includes a connection area, and the spoke 200 includes a connection portion 201; the connection area is located at the end of the rim 100 facing the spoke 200, and one end of the connection area close to the spoke 200 extends toward the spoke 200 and is connected to the connection portion 201; the connection portion 201 is provided with an installation groove, and a fixing component is installed in the installation groove, and the fixing component is connected to the rim 100 on the side away from the installation groove.

[0051] In this embodiment, the steel-aluminum wheel includes a rim 100 and a spoke 200, the rim 100 includes a connecting area, the spoke 200 includes a connecting portion 201, the connecting area is located at the end of the rim 100 facing the spoke 200, one end of the connecting area close to the spoke 200 extends toward the direction of the spoke 200 and is connected to the connecting portion 201, the connecting portion 201 is provided with a mounting groove, the mounting ring is fixed to the spoke 200 by installing a fixing component in the circumferential direction of the mounting groove, and then the mounting ring is fixed to the rim 100 by connecting the fixing component to the rim 100 on the side away from the mounting groove, thereby fixing the spoke 200 and the rim 100 of different materials together, and the interference fit between the mounting groove and the fixing component and the fixing component replacing the method of pre-embedded connecting parts in the spoke 200 can simplify the production method, significantly reduce the production difficulty, and the principle is clear, which can effectively improve the production efficiency and fully guarantee the quality of the product.

[0052] The connecting portion 201 refers to a portion where the spoke 200 is connected to the rim 100 , and the connecting area refers to an area where the rim 100 is connected to the spoke 200 .

[0053] The rim 100 and the spoke 200 are respectively made of steel or aluminum. The steel-aluminum wheel provided in this embodiment can firmly connect the rim 100 and the spoke 200 of different materials together to reduce the production difficulty and improve the production efficiency and production quality. Correspondingly, it can also be applied to connect the rim 100 and the spoke 200 of the same material. The principle is the same, so it will not be described in detail.

[0054] According to an embodiment provided by the present invention, Figures 1 to 8 As shown, the fixing assembly includes a first connecting ring 101 and / or a second connecting ring 102, and the mounting groove includes a first mounting groove 202 and / or a second mounting groove 203; the first mounting groove 202 is opened at the bead seat 103 or the bottom groove 104 of the spoke 200 corresponding to the rim 100, and the second mounting groove 203 is opened at the junction of the spoke 200 and the end of the connecting area; the first connecting ring 101 is sleeved in the first mounting groove 202, and the second connecting ring 102 is sleeved in the second mounting groove 203.

[0055] In this embodiment, there are three matching modes of the fixing assembly and the mounting slot. The first mode is as follows: Figure 1 , Figure 3 and Figure 4 As shown, the fixing assembly includes a first connecting ring 101 and a second connecting ring 102, and the mounting groove includes a first mounting groove 202 and a second mounting groove 203. The first mounting groove 202 is opened at the bead seat 103 of the spoke 200 corresponding to the rim 100, and the second mounting groove 203 is opened at the junction of the spoke 200 and the end of the connecting area. The first connecting ring 101 is sleeved with the first mounting groove 202, and the second connecting ring 102 is sleeved with the second mounting groove 203; the second type, as Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the fixing assembly includes a first connecting ring 101, and the mounting groove includes a first mounting groove 202. The first mounting groove 202 is opened at the bottom groove 104 of the spoke 200 corresponding to the rim 100, and the first connecting ring 101 is sleeved with the first mounting groove 202; the third type, as shown Figure 5 As shown, the fixing assembly includes a second connecting ring 102, and the mounting groove includes a second mounting groove 203. The second mounting groove 203 is opened at the junction of the spoke 200 and the end of the connecting area, and the second connecting ring 102 is sleeved with the second mounting groove 203. Through the interference fit between the first connecting ring 101 and the first mounting groove 202 and / or the second connecting ring 102 and the second mounting groove 203, the connecting ring and the spoke 200 are fixed together.

[0056] Optionally, the connecting ring can be expanded by heating or stretched by a tensioner, and then sleeved on the circumference of the mounting groove, and then the connecting ring and the mounting groove are interference fit and fixed together.

[0057] Preferably, the first connecting ring 101, the second connecting ring 102 and the rim 100 can be fixed by laser welding, and welding spots 400 are formed at the welding locations, so as to maintain the stability of the connection.

[0058] According to an embodiment provided by the present invention, Figure 2 As shown, the first installation groove 202 is opened at the bottom groove 104 of the spoke 200 corresponding to the rim 100 , and the first connecting ring 101 is sleeved in the first installation groove 202 .

[0059] In this embodiment, when the first installation groove 202 is opened at the position of the spoke 200 corresponding to the bottom groove 104 of the rim 100, only the first connecting ring 101 needs to be provided to cooperate with the first installation groove 202 for connection, which is the second case mentioned above, so it will not be described again here.

[0060] According to an embodiment provided by the present invention, Figure 6 , Figure 7 and Figure 8 As shown, the outer edge of the connection area close to the spoke 200 coincides with the outer edge of the bottom groove 104 .

[0061] In this embodiment, when the first mounting groove 202 is opened at the position of the spoke 200 corresponding to the bottom groove 104 of the rim 100, the outer edge of the connection area close to the spoke 200 side can be set to coincide with the outer edge of the bottom groove 104, that is, the end of the rim 100 can be extended to the outer edge of the bottom groove 104, and the redundant bead seat 103 and other parts of the rim 100 can be cut off, and the end of the rim 100 is directly connected to the spoke 200, so that the connection stability is ensured by the interference fit between the first mounting ring and the first mounting groove 202, and the weight of the wheel can be reduced by cutting off the redundant part of the rim 100, thereby further enhancing the use effect of the wheel.

[0062] According to an embodiment provided by the present invention, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the fixing assembly further includes a fixing member 300 , which passes through the rim 100 , the first connecting ring 101 and the spoke 200 ; or, the fixing member 300 passes through the first connecting ring 101 and the spoke 200 , or, the fixing member 300 passes through the rim 100 and the spoke 200 .

[0063] In this embodiment, the fixing assembly further includes a fixing member 300, wherein when the first mounting groove 202 is opened at the bead seat 103 of the spoke 200 corresponding to the rim 100, the second mounting groove 203 is opened at the junction of the spoke 200 and the end of the connecting area, the first connecting ring 101 is sleeved with the first mounting groove 202, and the second connecting ring 102 is sleeved with the second mounting groove 203. At this time, it can be as shown Figure 1 and Figure 4 As shown, the fixing member 300 passes through the first connecting ring 101 and the spoke 200, and can also be as shown in FIG. Fig. 9 As shown, the fixing member 300 passes through the rim 100, the first connecting ring 101 and the spoke 200, that is, the fixing member 300 can be pierced together with the rim 100 or not. Fig.10 As shown, the fixing member 300 can be driven in from one side of the rim 100 or from one side of the spoke 200; when the fixing assembly only includes the first mounting groove 202, the first mounting groove 202 is opened at the bottom groove 104 of the spoke 200 corresponding to the rim 100, and the first connecting ring 101 is sleeved with the first mounting groove 202. Figure 2 , Figure 6, Figure 7 and Figure 8 As shown, the fixing member 300 can be driven into the bottom groove 104, in which case the rim 100 will be penetrated. Alternatively, the bottom groove 104 may not be penetrated, and only the first connecting ring 101 and the spoke 200 may be penetrated. When the fixing assembly only includes the second mounting groove 203, the second mounting groove 203 is provided at the junction of the spoke 200 and the end of the connecting area, and the second connecting ring 102 is sleeved with the second mounting groove 203. Figure 5 As shown, the fixing member 300 can be directly brought in from the bead seat 103 or the bottom groove 104 of the rim 100 to directly pierce the rim 100 and the spoke 200 .

[0064] Optionally, the fixing member 300 may be a pin, a rivet or a screw, etc., which may be driven in with a nail gun, or a connecting hole may be opened in advance on the rim 100, the connecting ring and the spoke 200, and then the fixing member 300 is installed and connected with the connecting hole through interference fit between the rod of the fixing member 300 and the connecting hole. The end of the fixing member 300 protruding from the rim 100 or the spoke 200 may be processed by grinding after welding, or by coating with sealant after welding, so as to maintain the sealing of the wheel.

[0065] According to an embodiment provided by the present invention, Figure 1 As shown, the inner bottom wall of the mounting groove is a plane, or an inclined surface, or a curved surface, or a stepped surface.

[0066] In this embodiment, if Fig. 9 As shown, the inner bottom wall of the mounting groove can be processed into a plane as well as an inclined surface, and the angle between the plane where the bottom surface is located and the straight line where the tire bead seat 103 or the bottom groove 104 is located is in the range of 2°-8°. It can also be processed into a step surface, and the height difference between the step surfaces is in the range of 0.1-5mm. It can also be an arc surface. Preferably, it is processed into an inwardly concave arc surface, which can effectively prevent the connection ring from being pulled out from the mounting groove, thereby ensuring the quality of the wheel.

[0067] Among them, optionally, the inner bottom wall of the installation groove includes but is not limited to the above-mentioned shape, and can also be processed into other shapes according to actual use. Its purpose does not deviate from the design concept of the present invention and should belong to the protection scope of the present invention.

[0068] The present invention also provides a method for processing a steel-aluminum wheel, comprising the above-mentioned steel-aluminum wheel and the following steps:

[0069] S1, forming the spoke 200, and forming a mounting groove at a position of the spoke 200 corresponding to the rim 100;

[0070] S2, forming the rim 100 and the connecting ring, and assembling the connecting ring, the rim 100 and the spoke 200;

[0071] S3, painting.

[0072] In this embodiment, taking a steel rim 100 and an aluminum spoke 200 as an example, the aluminum spoke 200 is formed by forging or casting, and a mounting groove is processed at a corresponding position of the spoke 200 relative to the rim 100. Preferably, the wall thickness D of the outer side of the mounting groove corresponding to the spoke 200 is ≥1.5 mm, the depth W of the first mounting groove 202 is in the range of 2-30 mm, and the width L of the first mounting groove 202 is in the range of 1.5-10 mm; the depth W1 of the second mounting groove 203 is in the range of 3-15 mm, and the width L1 of the second mounting groove 203 is in the range of 1.5-5.5 mm.

[0073] Among them, the fixing part 300 can be driven into the side of the rim 100 from the inside of the connecting portion 201 or driven into the side of the rim 100 from the spoke 200 outside the connecting portion 201. Accordingly, whether the fixing part 300 penetrates the rim 100 can also be set according to actual usage requirements. It can be selected according to actual needs and will not be repeated here.

[0074] The steel rim 100 is processed and formed according to conventional procedures, and the outer edge of the rim 100 is processed to a size that can match the spoke 200. At the same time, a connecting ring is processed and formed. The connecting ring is one-piece or split. When the connecting ring is one-piece, a notch is provided. After the connecting ring is embedded in the installation groove, it is welded and fixed at the notch; when the connecting ring is split, several parts of the connecting ring are embedded in the installation grooves respectively, and then laser welded to the corresponding rim 100.

[0075] The thickness of the connecting ring should be wider than the mounting groove to facilitate interference fit, and the interference amount is 0.05-0.5mm. At the same time, the height of the connecting ring should be 1-10mm greater than the depth of the mounting groove. Preferably, the wall thickness of the connecting ring is in the range of 2-10mm, and the width is in the range of 8-30mm. The inner diameter of the connecting ring matches the outer diameter of the spoke 200. The inner diameter of the connecting ring can also be directly processed to a size that matches the tire bead seat 103 or the bottom groove 104 to facilitate interference fit.

[0076] The connecting ring is one-piece or split. During assembly, the connecting ring is first installed in the installation groove. When the fixing member 300 is selected to pass only through the first connecting ring 101 and the first installation groove 202, the fixing member 300 is first driven in and then the rim 100 and the spoke 200 are assembled. When the fixing member 300 is selected to pass through the first connecting ring 101, the rim 100 and the first installation groove 202, the rim 100 and the spoke 200 are first assembled and then the fixing member 300 is driven in.

[0077] After the first connecting ring 101 at the bead seat 103 or the bottom groove 104 is embedded into the first installation groove 202, it is equivalent to being inserted into the spoke 200. At this time, the first connecting ring 101 and the spoke 200 can be connected to the fixing part 300, and the rim 100, the first connecting ring 101 and the spoke 200 can also be connected to the fixing part 300. The spoke 200 can be opened or not according to actual usage. Optionally, sealant is applied to the rim 100 or welding and sealing treatment is performed. When welding, the welding point needs to be processed to be flush with the surface of the rim 100.

[0078] Preferably, in S2, the spoke 200 and the rim 100 are press-fitted, and the connecting ring and the corresponding positions of the rim 100 are laser welded. The spoke 200, the rim 100 and the outer sides of the connecting ring are processed to form rounded corners.

[0079] Finally, painting is carried out. The above processing method simplifies the entire production process of steel-aluminum wheels and effectively reduces the production difficulty, thereby effectively improving production efficiency, reducing production energy consumption, and ensuring the quality of products.

[0080] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel-aluminum wheel, characterized in that: It comprises a rim (100) and a spoke (200); The rim (100) comprises a connection area, and the spoke (200) comprises a connection portion (201); the connection area is located at the end of the rim (100) facing the spoke (200), and one end of the connection area close to the spoke (200) extends in the direction of the spoke (200) and is connected to the connection portion (201); The connecting portion (201) is provided with a mounting groove, a fixing component is installed in the mounting groove, and a side of the fixing component facing away from the mounting groove is connected to the rim (100).

2. The steel-aluminum wheel according to claim 1, characterized in that: The fixing assembly comprises a first connecting ring (101) and / or a second connecting ring (102), and the mounting groove comprises a first mounting groove (202) and / or a second mounting groove (203); The first installation groove (202) is formed at the bead seat (103) or the bottom groove (104) of the wheel spoke (200) corresponding to the wheel rim (100), and the second installation groove (203) is formed at the junction of the wheel spoke (200) and the end of the connection area; The first connecting ring (101) is sleeved in the first mounting groove (202), and the second connecting ring (102) is sleeved in the second mounting groove (203).

3. The steel-aluminum wheel according to claim 2, characterized in that: The first installation groove (202) is formed at a bottom groove (104) of the wheel spoke (200) corresponding to the wheel rim (100), and the first connecting ring (101) is sleeved in the first installation groove (202).

4. The steel-aluminum wheel according to claim 3, characterized in that: The outer edge of the connection area on a side close to the spoke (200) coincides with the outer edge of the bottom groove (104).

5. The steel-aluminum wheel according to any one of claims 2-3, characterized in that: The fixing assembly further comprises a fixing member (300); The fixing member (300) passes through the rim (100), the first connecting ring (101) and the spoke (200); Alternatively, the fixing member (300) passes through the first connecting ring (101) and the spoke (200); Alternatively, the fixing member (300) passes through the rim (100) and the spoke (200).

6. The steel-aluminum wheel according to claim 1, characterized in that: The inner bottom wall of the mounting groove is a plane, or an inclined surface, or a curved surface, or a stepped surface.

7. A method for processing a steel-aluminum wheel, characterized in that: The method comprises the steel-aluminum wheel according to any one of claims 1 to 6, and the following steps: S1, processing and forming the wheel spoke (200), and processing the installation groove at a corresponding position of the wheel spoke (200) relative to the wheel rim (100); S2, processing and forming the rim (100) and the connecting ring, and assembling the connecting ring, the rim (100) and the spoke (200); S3, painting.

8. The method for processing a steel-aluminum wheel according to claim 7, characterized in that: In S1, the wall thickness D of the outer side of the spoke (200) is ≥ 1.5 mm; The depth W of the first installation groove (202) is in the range of 2-30 mm, and the width L of the first installation groove (202) is in the range of 1.5-10 mm; The depth W1 of the second installation groove (203) is in the range of 3-15 mm, and the width L1 of the second installation groove (203) is in the range of 1.5-5.5 mm.

9. The method for processing a steel-aluminum wheel according to claim 7, characterized in that: In S2, the connecting ring is of an integrated or split type. During assembly, the connecting ring is first installed in the installation groove and then fixed by a fixing member (300) passing through the connecting ring and the spoke (200), and then the rim (100) and the spoke (200) are assembled. Alternatively, the connecting ring is first installed in the installation groove, and then the rim (100) and the spoke (200) are assembled, and then the fixing member (300) is passed through the connecting ring, the rim (100) and the spoke (200) to fix them.

10. The method for processing a steel-aluminum wheel according to claim 7, characterized in that: In S3, the spoke (200) and the rim (100) are press-fitted, and the connecting ring and the rim (100) are welded at corresponding positions.

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