Aluminum alloy profile for hot forging control arm

Abstract

The utility model provides an aluminum alloy section bar for a hot forging control arm, the cross section of the aluminum alloy section bar comprises a first end part, a second end part and a third end part, the third end part is respectively connected with the first end part and the second end part, a V-shaped groove is arranged between the first end part and the second end part, and the V-shaped groove is connected with the first end part and the second end part. An opening of the V-shaped groove is located between the free end of the first end and the free end of the second end, and the bottom of the V-shaped groove is connected with the third end. The aluminum alloy profile for the hot forging control arm is prefabricated into a profiling structure of the control arm in the extrusion process, compared with an aluminum alloy round bar profile formed through hot extrusion, the aluminum alloy profile can reduce one-time flattening and bending procedures when the control arm is manufactured, the forging deformation amount is reduced, and the production efficiency is improved. And the production of forged coarse-grain rings is better inhibited, and the production cost is reduced while the quality is improved.

Description

Technical Field

[0001] The utility model relates to an aluminum alloy profile, in particular to an aluminum alloy profile for a hot forged control arm. Background Art

[0002] The automobile suspension system is an important assembly in modern automobiles, which has a great influence on the driving smoothness and handling stability of the automobile. As the guiding and force transmission element of the automobile suspension system, the control arm (also called the swing arm) transmits various forces acting on the wheel to the body, while ensuring that the wheel moves along a certain trajectory. The control arm elastically connects the wheel and the body through a ball joint or a bushing. With the continuous development of the automobile industry, the requirements for lightweight automobiles are getting higher and higher, and the use of lightweight aluminum alloys to replace steel and cast iron in automobiles is becoming more and more widespread.

[0003] Aluminum alloy control arms are key components of automobile suspension systems. They have complex shapes and are usually forged from hot extruded aluminum alloy round bars. Common processing procedures are: round bar cutting → heating → roll forging → flattening and bending → secondary heating → pre-forging, final forging → T6 heat treatment. In this process, the blank needs to be heated twice, which results in a long processing cycle and low efficiency. In addition, the material undergoes multiple forgings, resulting in low utilization and yield rates. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an aluminum alloy profile for hot forged control arms. The aluminum alloy profile for hot forged control arms of the utility model is prefabricated into a control arm-shaped structure during the extrusion process. Compared with aluminum alloy round bar profiles formed by hot extrusion, the aluminum alloy profile of the utility model can reduce one flattening and bending process when manufacturing control arms, reduce the forging deformation, better suppress the generation of forged coarse grain rings, improve quality and reduce production costs.

[0005] In order to achieve the above technical objectives, the technical solution adopted in the embodiment of the utility model is:

[0006] An aluminum alloy profile for a hot forged control arm, wherein the cross section of the aluminum alloy profile comprises a first end, a second end and a third end, wherein the third end is connected to the first end and the second end respectively, wherein a V-shaped groove is provided between the first end and the second end, wherein the opening of the V-shaped groove is located between the free ends of the first end and the second end, and wherein the bottom of the V-shaped groove is connected to the third end.

[0007] Furthermore, the first end, the second end and the third end are respectively located on three vertices of a virtual triangle.

[0008] Furthermore, the virtual triangle is one of an equilateral triangle, an isosceles triangle or a scalene triangle.

[0009] Furthermore, the third end is connected to the first end and the second end respectively through a plurality of arc surfaces of unequal diameters.

[0010] Further, the free end sizes of the first end and the second end are larger than the size of the connecting portion between the first end, the second end and the third end.

[0011] Further, the free ends of the first end portion and the second end portion have the same or different sizes.

[0012] Furthermore, the aluminum alloy profile is integrally formed by extruding the aluminum alloy material as a whole through a mold.

[0013] The beneficial effects brought by the technical solution provided by the embodiment of the utility model are:

[0014] The aluminum alloy profile for hot forging control arms of the utility model is prefabricated into a contoured structure of the control arm during the extrusion process. Compared with the aluminum alloy round bar profile formed by hot extrusion, the aluminum alloy profile of the utility model can reduce one flattening and bending process when manufacturing the control arm, reduce the forging deformation, better inhibit the generation of forging coarse grain rings, improve quality and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the aluminum alloy profile for hot forging control arm in the embodiment of the utility model.

[0016] Explanation of the reference numerals: 1 - first end; 2 - second end; 3 - third end; 4 - V-shaped groove; 5 - connecting portion. DETAILED DESCRIPTION

[0017] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "inside, outside", "up, down", "left, right", etc. are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Example 1

[0020] like Figure 1As shown, an aluminum alloy profile for a hot forged control arm, the cross section of the aluminum alloy profile includes a first end 1, a second end 2 and a third end 3, the third end 3 is connected to the first end 1 and the second end 2 respectively, a V-shaped groove 4 is provided between the first end 1 and the second end 2, the opening of the V-shaped groove 4 is located between the free ends of the first end 1 and the second end 2, and the bottom of the V-shaped groove 4 is connected to the third end 3.

[0021] The first end 1, the second end 2 and the third end 3 are respectively located at three vertices of a virtual triangle. The virtual triangle is one of an equilateral triangle, an isosceles triangle or an unequal-sided triangle.

[0022] The third end portion 3 is connected to the first end portion 1 and the second end portion 2 respectively through a plurality of arc surfaces of unequal diameters.

[0023] The free end dimensions of the first end portion 1 and the second end portion 2 are larger than the dimension of the connecting portion 5 between the first end portion 1 , the second end portion 2 and the third end portion 3 .

[0024] The free ends of the first end portion 1 and the second end portion 2 may have the same or different sizes.

[0025] The aluminum alloy profile is integrally formed by extruding the aluminum alloy material through a die.

[0026] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An aluminum alloy profile for hot forging control arm, characterized in that: The cross section of the aluminum alloy profile comprises a first end (1), a second end (2) and a third end (3); the third end (3) is connected to the first end (1) and the second end (2) respectively; a V-shaped groove (4) is provided between the first end (1) and the second end (2); an opening of the V-shaped groove (4) is located between the free ends of the first end (1) and the second end (2); and the bottom of the V-shaped groove (4) is connected to the third end (3).

2. The aluminum alloy profile for hot forging control arm according to claim 1, characterized in that: The first end (1), the second end (2) and the third end (3) are respectively located on three vertices of a virtual triangle.

3. The aluminum alloy profile for hot forging control arm according to claim 1, characterized in that: The third end portion (3) is connected to the first end portion (1) and the second end portion (2) respectively via a plurality of arc surfaces of unequal diameters.

4. The aluminum alloy profile for hot forging control arm according to claim 1, characterized in that: The free end dimensions of the first end (1) and the second end (2) are greater than the dimensions of the connecting portion (5) between the first end (1), the second end (2) and the third end (3).

5. The aluminum alloy profile for hot forging control arm according to claim 1, characterized in that: The free ends of the first end portion (1) and the second end portion (2) have the same or different sizes.

6. The aluminum alloy profile for hot forging control arm according to any one of claims 1 to 5, characterized in that: The aluminum alloy profile is integrally formed by extruding the aluminum alloy material through a die.

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