Steel-aluminum wheel and machining method therefor

Abstract

The present disclosure relates to the technical field of automobile accessories, and specifically relates to a steel-aluminum wheel and a machining method therefor. The steel-aluminum wheel comprises a rim and spokes. The rim comprises a connecting area, and the spokes each comprise a connecting portion. The connecting area is located at the end portion of the side of the rim facing the spokes, and the end of the connecting area close to the spokes extends towards the spokes and is connected to the connecting portion. Each connecting portion is provided with a mounting slot, a fixing assembly is mounted in the mounting slot, and the side of the fixing assembly facing away from the mounting slot is connected to the rim. In the steel-aluminum wheel provided by the present disclosure, the production method can be simplified, the production efficiency can be effectively improved, and the product quality can also be fully ensured. The present disclosure further provides a machining method for the steel-aluminum wheel, used for allowing the entire production machining process to be simple, and effectively reducing the production difficulty, thereby effectively improving the production efficiency, reducing the production energy consumption, and ensuring the quality of a produced product.

Description

A steel-aluminum wheel and its processing method

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 2024118732830, filed on December 18, 2024, entitled "A Steel-Aluminum Wheel and a Processing Method Thereof", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of automotive parts technology, specifically to a steel-aluminum wheel and its processing method. Background Technology

[0004] Car wheels are components that contribute to a car's movement, appearance, and safety. Steel and aluminum wheels each have their advantages and disadvantages; therefore, combining steel rims with aluminum spokes in a composite wheel maximizes the advantages of both.

[0005] Since steel and aluminum cannot be directly connected by welding, the current steel-aluminum wheels are made by pre-embedding steel sheets inside the spokes during the casting of aluminum spokes, and then welding the steel sheets to the steel rim. Because steel and aluminum have different thermal shrinkage ratios, the entire casting process is too complicated and costly, and it also leads to lower product quality and lower production efficiency. Summary of the Invention

[0006] (a) This disclosure provides a steel-aluminum wheel to alleviate the technical problems of high production difficulty and low production efficiency caused by pre-embedded steel sheets.

[0007] (II) Technical Solution

[0008] To address the aforementioned technical problems, embodiments of this disclosure provide a steel-aluminum wheel, including a rim and spokes;

[0009] The rim includes a connecting area, and the spokes include connecting portions; the connecting area is located at the end of the rim facing the spokes, and the end of the connecting area near the spokes extends toward the spokes and is connected to the connecting portions;

[0010] The connecting part has a mounting groove, and a fixing component is installed in the mounting groove. The side of the fixing component opposite to the mounting groove is connected to the wheel rim.

[0011] Optionally, the fixing component 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;

[0012] The first mounting groove is formed at the tire bead seat or bottom groove of the wheel spoke corresponding to the wheel rim, and the second mounting groove is formed at the end where the wheel spoke meets the connecting area;

[0013] The first connecting ring is sleeved in the first mounting groove, and the second connecting ring is sleeved in the second mounting groove.

[0014] Optionally, the first mounting groove is formed at the bottom groove of the spoke corresponding to the rim, and the first connecting ring is sleeved on the first mounting groove.

[0015] Optionally, the outer edge of the connecting area near the spoke side coincides with the outer edge of the bottom groove.

[0016] Optionally, the fixing component further includes a fastener;

[0017] The fastener passes through the rim, the first connecting ring, and the spokes;

[0018] Alternatively, the fastener passes through the first connecting ring and the spokes;

[0019] Alternatively, the fastener passes through the rim and the spokes.

[0020] Optionally, the inner bottom wall of the mounting groove is a plane, an inclined plane, an arc surface, or a stepped surface.

[0021] This disclosure also provides a method for processing a steel-aluminum wheel, including the aforementioned steel-aluminum wheel, and the following steps:

[0022] S1, process and form the spokes, and process the mounting groove at the corresponding position of the spokes relative to the rim;

[0023] S2, process and form the rim and connecting ring, and assemble the connecting ring, the rim and the spokes;

[0024] S3, paint scheme.

[0025] Optionally, in S1, the wall thickness D on the outer side of the spokes is ≥1.5mm;

[0026] The depth W of the first mounting groove ranges from 2 to 30 mm, and the width L of the first mounting groove ranges from 1.5 to 10 mm.

[0027] The depth W1 of the second mounting groove ranges from 3 to 15 mm, and the width L of the second mounting groove ranges from 1.5 to 5.5 mm.

[0028] Optionally, in S2, the connecting ring is either integral or separate. During assembly, the connecting ring is first installed in the mounting groove and then fixed by a fastener passing through the connecting ring and the spokes. Then, the rim and the spokes are assembled. Alternatively, the connecting ring is first installed in the mounting groove, the rim and the spokes are assembled, and then fixed by a fastener passing through the connecting ring, the rim, and the spokes.

[0029] Optionally, in S3, the spokes and the rim are press-fitted, and the connecting ring and the corresponding position of the rim are welded.

[0030] The beneficial effects of this disclosure are:

[0031] This disclosure provides a steel-aluminum wheel, including a rim and spokes. The rim includes a connecting area, and the spokes include connecting portions. The connecting area is located at the end of the rim facing the spokes. The end of the connecting area near the spokes extends towards the spokes and is connected to the connecting portions. The connecting portions have a mounting groove. A mounting ring is fixed to the spokes by installing a fixing component around the mounting groove. The mounting ring is then fixed to the rim by connecting the fixing component to the rim on the side away from the mounting groove. This fixes the spokes and rim, which are made of different materials, together. The interference fit between the mounting groove and the fixing component, and the fixing component, replace the method of pre-embedding connecting parts in the spokes, which simplifies the production method, significantly reduces the production difficulty, and has a clear principle. It can effectively improve production efficiency and fully guarantee product quality.

[0032] This disclosure also provides a processing method for steel-aluminum wheels, which simplifies the entire production process of steel-aluminum wheels and effectively reduces production difficulty, thereby effectively improving production efficiency, reducing production energy consumption, and ensuring product quality. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 is a structural schematic diagram of a steel-aluminum wheel provided in an embodiment of the invention;

[0035] Figure 2 is a structural schematic diagram of the second type of steel-aluminum wheel provided in the embodiment of the invention;

[0036] Figure 3 is a structural schematic diagram of the third type of steel-aluminum wheel provided in the embodiment of the invention;

[0037] Figure 4 is a structural schematic diagram of the fourth type of steel-aluminum wheel provided in the embodiment of the invention;

[0038] Figure 5 is a structural schematic diagram of the fifth type of steel-aluminum wheel provided in the embodiment of the invention;

[0039] Figure 6 is a structural schematic diagram of the sixth type of steel-aluminum wheel provided in the embodiment of the invention;

[0040] Figure 7 is a structural schematic diagram of the seventh type of steel-aluminum wheel provided in the embodiment of the invention;

[0041] Figure 8 is a structural schematic diagram of the eighth type of steel-aluminum wheel provided in the embodiment of the invention;

[0042] Figure 9 is a schematic diagram of various connections at the bead seat of another steel-aluminum wheel provided in the embodiment of the invention, as well as a schematic diagram of the shape of the bottom wall of the mounting groove.

[0043] Figure 10 is a schematic diagram of various connections corresponding to the bottom groove of another steel-aluminum wheel provided in the embodiment of the invention.

[0044] Icons: 100-Rim; 101-First connecting ring; 102-Second connecting ring; 103-Bead seat; 104-Bottom groove; 200-Spoke; 201-Connecting part; 202-First mounting groove; 203-Second mounting groove; 300-Fixing component; 400-Weld point. Detailed Implementation

[0045] The technical solutions of this disclosure will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this disclosure, not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0046] In the description of this disclosure, 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 accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0048] As shown in Figures 1 to 10, this disclosure provides a steel-aluminum wheel, including a rim 100 and spokes 200; the rim 100 includes a connecting area, and the spokes 200 includes a connecting portion 201; the connecting area is located at the end of the rim 100 facing the spokes 200, and the end of the connecting area near the spokes 200 extends toward the spokes 200 and is connected to the connecting portion 201; the connecting portion 201 has a mounting groove, and a fixing component is installed in the mounting groove, and the side of the fixing component facing away from the mounting groove is connected to the rim 100.

[0049] In this embodiment, the steel-aluminum wheel includes a rim 100 and spokes 200. The rim 100 includes a connecting area, and the spokes 200 include a connecting portion 201. The connecting area is located at the end of the rim 100 facing the spokes 200. The end of the connecting area near the spokes 200 extends towards the spokes 200 and is connected to the connecting portion 201. The connecting portion 201 has an installation groove. By installing a fixing component around the mounting groove, the mounting ring is fixed to the spokes 200. Then, by connecting the side of the fixing component away from the mounting groove to the rim 100, the mounting ring is fixed to the rim 100. Thus, the spokes 200 and the rim 100, which are of different materials, are fixedly connected together. The interference fit between the mounting groove and the fixing component, and the fixing component replacing the method of pre-embedding the connector in the spokes 200, can simplify the production method, significantly reduce the production difficulty, and the principle is clear. It can effectively improve production efficiency and fully guarantee the quality of the product.

[0050] The connecting part 201 refers to the part where the spokes 200 and the rim 100 are connected, and the connecting area refers to the area where the rim 100 and the spokes 200 are connected.

[0051] The rim 100 and spokes 200 are made of either steel or aluminum. The steel-aluminum wheel provided in this embodiment can securely connect rims 100 and spokes 200 of dissimilar materials, reducing production difficulty and improving production efficiency and quality. Similarly, it can also be applied to connect rims 100 and spokes 200 of the same material, based on the same principle, and therefore will not be elaborated further.

[0052] According to an embodiment provided in this disclosure, as shown in Figures 1 to 8, the fixing component 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 formed at the wheel spoke 200 corresponding to the tire bead seat 103 or bottom groove 104 of the rim 100, and the second mounting groove 203 is formed at the end of the wheel spoke 200 that connects to 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.

[0053] In this embodiment, there are three ways to match the fixing component with the mounting groove. The first way, as shown in Figures 1, 3, and 4, involves a fixing component including a first connecting ring 101 and a second connecting ring 102, and a mounting groove including a first mounting groove 202 and a second mounting groove 203. The first mounting groove 202 is located at the wheel spoke 200 corresponding to the tire bead seat 103 of the wheel rim 100, and the second mounting groove 203 is located at the end of the wheel spoke 200 where it connects to 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 shown in Figures 2, 6, 7, and 8, includes a first connecting ring 101 and a first mounting groove 202. The first mounting groove 202 is formed at the bottom groove 104 of the rim 100 corresponding to the spoke 200, and the first connecting ring 101 is sleeved with the first mounting groove 202. The third type, as shown in Figure 5, includes a second connecting ring 102 and a second mounting groove 203. The second mounting groove 203 is formed at the end where the spoke 200 meets 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.

[0054] Optionally, the connecting ring can be expanded by heating or stretched by a tensioner, and then fitted onto the circumference of the mounting groove. The connecting ring and the mounting groove are then interference-fitted together to fix them in place.

[0055] Optionally, the first connecting ring 101, the second connecting ring 102 and the rim 100 can be fixed by laser welding, forming a weld point 400 at the welding point, thereby maintaining the stability of the connection.

[0056] According to an embodiment provided in this disclosure, as shown in FIG2, a first mounting groove 202 is formed at the bottom groove 104 of the spoke 200 corresponding to the rim 100, and a first connecting ring 101 is sleeved on the first mounting groove 202.

[0057] 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, only the first connecting ring 101 needs to be provided to cooperate with the first mounting groove 202 for connection, which is the second case mentioned above, so it will not be described in detail here.

[0058] According to one embodiment provided in this disclosure, as shown in Figures 6, 7 and 8, the outer edge of the connecting area near the spoke 200 coincides with the outer edge of the bottom groove 104.

[0059] 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 connecting area near the spoke 200 can be set to coincide with the outer edge of the bottom groove 104. That is, the end of the rim 100 can extend to the outer edge of the bottom groove 104. Excess parts such as the tire bead seat 103 of the rim 100 can be cut off, and the end of the rim 100 is directly connected to the spoke 200. Thus, the connection stability is ensured by the interference fit between the first mounting ring and the first mounting groove 202. The weight of the wheel can also be reduced by cutting off the excess part of the rim 100, thereby further enhancing the wheel's performance.

[0060] According to one embodiment provided in this disclosure, as shown in Figures 1, 2, 4, 5, 6, 7 and 8, the fixing assembly further includes a fixing member 300, which passes through the rim 100, the first connecting ring 101 and the spokes 200; or, the fixing member 300 passes through the first connecting ring 101 and the spokes 200, or the fixing member 300 passes through the rim 100 and the spokes 200.

[0061] In this embodiment, the fixing component further includes a fixing member 300. When the first mounting groove 202 is located at the bead seat 103 of the rim 100 corresponding to the spoke 200, and the second mounting groove 203 is located at the end of the spoke 200 where it connects to 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, then, as shown in Figures 1 and 4, the fixing member 300 can pass through the first connecting ring 101 and the spoke 200, or as shown in Figure 9, the fixing member 300 can pass through the rim 100, the first connecting ring 101, and the spoke 200. That is, the fixing can be either driven through the rim 100 together or not. Correspondingly, as shown in Figure 10, 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 component only includes the first mounting groove 202, the first mounting groove 202 is opened at the bottom groove 104 of the rim 100 corresponding to the spoke 200. The first connecting ring 101 is sleeved with the first mounting groove 202. At this time, as shown in Figures 2, 6, 7 and 8, the fixing member 300 can be driven into the bottom groove 104, which will penetrate the rim 100. Alternatively, the bottom groove 104 can be penetrated without penetrating it, and only the first connecting ring 101 and the spoke 200 can be penetrated. When the fixing component only includes the second mounting groove 203, the second mounting groove 203 is opened at the end where the spoke 200 meets the connecting area. The second connecting ring 102 is sleeved with the second mounting groove 203. At this time, as shown in Figure 5, the fixing member 300 can be directly brought in from the bead seat 103 or the bottom groove 104 of the rim 100, directly penetrating the rim 100 and the spoke 200.

[0062] Optionally, the fastener 300 can be a pin, rivet, or screw, which can be driven in with a nail gun. Alternatively, connecting holes can be pre-drilled on the rim 100, connecting ring, and spokes 200, and the fastener 300 can be installed, with the connection achieved through an interference fit between the shank of the fastener 300 and the connecting hole. The end of the fastener 300 protruding from the rim 100 or spokes 200 can be treated by welding and then grinding, or by welding and then applying sealant to maintain the wheel's sealing performance.

[0063] According to one embodiment provided in this disclosure, as shown in FIG1, the inner bottom wall of the mounting groove is a plane, or a slope, or a curved surface, or a stepped surface.

[0064] In this embodiment, as shown in Figure 9, the inner bottom wall of the mounting groove can be machined into a plane or an inclined plane, with the angle between the plane containing its bottom surface and the straight line containing the bead seat 103 or the bottom groove 104 ranging from 2° to 8°. It can also be machined into a stepped surface, with the height difference between the stepped surfaces ranging from 0.1 to 5 mm. Alternatively, it can be an arc surface, or optionally, a concave arc surface, which can effectively prevent the connecting ring from pulling off the mounting groove, thereby ensuring the quality of wheel use.

[0065] Optionally, the inner bottom wall of the mounting groove may include, but is not limited to, the shape described above, and may also be processed into other shapes according to the actual use of the novel invention. The purpose of such processing does not depart from the design concept of this disclosure and should fall within the protection scope of this disclosure.

[0066] This disclosure also provides a method for processing a steel-aluminum wheel, including the aforementioned steel-aluminum wheel, and the following steps:

[0067] S1, process and form wheel spokes 200, and process mounting grooves at corresponding positions of wheel spokes 200 relative to wheel rim 100;

[0068] S2, process and form the rim 100 and the connecting ring, and assemble the connecting ring, the rim 100 and the spokes 200;

[0069] S3, paint scheme.

[0070] In this embodiment, taking a steel rim 100 and an aluminum spoke 200 as examples, the aluminum spoke 200 is formed by forging or casting. At the same time, a mounting groove is machined at the corresponding position of the spoke 200 relative to the rim 100. Optionally, the wall thickness D of the outer side of the mounting groove of the spoke 200 is ≥1.5mm. The depth W of the first mounting groove 202 is in the range of 2-30mm, and the width L of the first mounting groove 202 is in the range of 1.5-10mm. The depth W1 of the second mounting groove 203 is in the range of 3-15mm, and the width L1 of the second mounting groove 203 is in the range of 1.5-5.5mm.

[0071] The fastener 300 can be driven into the rim 100 from one side, or into the rim 100 from inside the connecting part 201, or into the rim 100 from the spoke 200 outside the connecting part 201. Correspondingly, whether the fastener 300 penetrates the rim 100 can be set according to actual usage requirements. All of these can be selected according to actual needs, and will not be elaborated further.

[0072] The steel rim 100 is processed and formed according to conventional procedures. The outer rim of the rim 100 is processed to a size that matches the spokes 200. At the same time, a connecting ring is processed and formed. The connecting ring can be one-piece or split. When the connecting ring is one-piece, there is a notch. After the connecting ring is inserted into the mounting groove, it is welded and fixed at the notch. When the connecting ring is split, several parts of the connecting ring are inserted into the mounting grooves and then laser-welded to the corresponding parts of the rim 100.

[0073] The thickness of the connecting ring should be wider than the mounting groove to facilitate interference fit. 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. Optionally, the wall thickness of the connecting ring is 2-10mm and the width is 8-30mm. The inner diameter of the connecting ring matches the outer diameter of the wheel spoke 200. The inner diameter of the connecting ring can also be directly machined to match the size of the bead seat 103 or the bottom groove 104 to facilitate interference fit.

[0074] The connecting ring can be integrated or separate. During assembly, the connecting ring is first installed in the mounting groove. When the fastener 300 passes through only the first connecting ring 101 and the first mounting groove 202, the fastener 300 is driven in first, and then the rim 100 and spoke 200 are assembled. When the fastener 300 passes through the first connecting ring 101, the rim 100 and the first mounting groove 202, the rim 100 and spoke 200 are assembled first, and then the fastener 300 is driven in.

[0075] After the first connecting ring 101 at the bead seat 103 or bottom groove 104 is embedded into the first mounting groove 202, it is equivalent to fitting it onto the spoke 200. At this time, the first connecting ring 101 and the spoke 200 can be driven into the fixing member 300, or the rim 100, the first connecting ring 101 and the spoke 200 can be driven into the fixing member 300. The spoke 200 can be opened or not according to the actual use. Optionally, sealant can be applied to the rim 100 or welded for sealing. When welding, the welded part needs to be machined to be flush with the surface of the rim 100.

[0076] Optionally, in S2, the spokes 200 and rim 100 are press-fitted, and the connecting ring and corresponding positions on the rim 100 are laser-welded. The spokes 200, rim 100, and the outer sides of the connecting ring are machined to form rounded corners.

[0077] Finally, the coating process 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 the products.

[0078] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure. Industrial applicability

[0079] A steel-aluminum wheel includes a rim and spokes. The rim includes a connecting area, and the spokes include a connecting portion. The connecting area is located at the end of the rim facing the spokes. The end of the connecting area near the spokes extends towards the spokes and connects to the connecting portion. The connecting portion has an installation groove. A mounting ring is fixed to the spokes by installing a fixing component around the mounting groove. The mounting ring is then fixed to the rim by connecting the fixing component to the rim on the side away from the mounting groove. This fixes the spokes and rim, which are made of different materials, together. The interference fit between the mounting groove and the fixing component, and the fixing component, replace the method of pre-embedding the connector in the spokes, which simplifies the production method, significantly reduces the production difficulty, and has a clear principle. It can effectively improve production efficiency and fully guarantee product quality.

Claims

1. A steel-aluminum wheel, characterized in that, Includes the rim (100) and spokes (200); The rim (100) includes a connecting area, and the spokes (200) include a connecting portion (201); the connecting area is located at the end of the rim (100) facing the spokes (200), and the end of the connecting area near the spokes (200) extends toward the spokes (200) and is connected to the connecting portion (201); The connecting part (201) has an installation groove, and a fixing component is installed in the installation groove. The side of the fixing component opposite to the installation groove is connected to the rim (100).

2. The steel-aluminum wheel according to claim 1, characterized in that, The fixing component 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 tire bead seat (103) or bottom groove (104) of the spoke (200) corresponding to the rim (100), and the second mounting groove (203) is opened at the end of the spoke (200) where it meets the connecting area; The first connecting ring (101) is sleeved on the first mounting groove (202), and the second connecting ring (102) is sleeved on the second mounting groove (203).

3. The steel-aluminum wheel according to claim 2, characterized in that, 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 on the first mounting groove (202).

4. The steel-aluminum wheel according to claim 3, characterized in that, The outer edge of the connecting area near the spoke (200) coincides with the outer edge of the bottom groove (104).

5. The steel-aluminum wheel according to any one of claims 2-4, characterized in that, The fixing component also includes a fastener (300); The fastener (300) passes through the rim (100), the first connecting ring (101), and the spokes (200); Alternatively, the fastener (300) passes through the first connecting ring (101) and the spokes (200); Alternatively, the fastener (300) passes through the rim (100) and the spokes (200).

6. The steel-aluminum wheel according to any one of claims 1-5, characterized in that, The inner bottom wall of the mounting groove is a flat surface, an inclined surface, an arc surface, or a stepped surface.

7. A method for processing steel-aluminum wheels, characterized in that, Including the steel-aluminum wheel according to any one of claims 1-6, and the following steps: S1, the spokes (200) are machined and formed, and the mounting grooves are machined at the corresponding positions of the spokes (200) relative to the rim (100); S2, process and form the rim (100) and connecting ring, and assemble the connecting ring, the rim (100) and the spokes (200); S3, paint scheme.

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

9. The method for processing steel-aluminum wheels according to any one of claims 7-8, characterized in that, In S2, the connecting ring is either integral or separate. During assembly, the connecting ring is first installed in the mounting groove and then fixed by the fastener (300) passing through the connecting ring and the spoke (200). Then the rim (100) is assembled with the spoke (200). Alternatively, the connecting ring is first installed in the mounting groove, then the rim (100) and the spoke (200) are assembled, and then fixed by the fastener (300) passing through the connecting ring, the rim (100), and the spoke (200).

10. The method for processing steel-aluminum wheels according to any one of claims 7-9, characterized in that, In S3, the spokes (200) and the rim (100) are press-fitted, and the connecting ring and the corresponding position of the rim (100) are welded.

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