High-strength aluminum alloy material for aluminum forging of automobile chassis

Abstract

A high-strength aluminum alloy material for aluminum forging of automobile chassis, which material comprises the following components: 0.035-0.1% of Cu, 1.14-1.35% of Si, 0.201-0.32% of Fe, 0.65-0.82% of Mn, 0.13-0.82% of Mg, 0.015-0.045% of Ti, 0.02-0.065% of Zn, 0.13-0.85% of Cr and the balance of Al. On the premise that a requirement for light weight is satisfied, the strength of the aluminum alloy material is further improved.

Description

High-strength aluminum alloy materials for automobile chassis aluminum forgings Technical Field

[0001] The present invention relates to the field of automobile chassis manufacturing, in particular to a high-strength aluminum alloy material for automobile chassis aluminum forgings. Background Art

[0002] Automobile chassis usually use aluminum alloy materials. The aluminum alloy materials currently on the market are relatively general and cannot meet the application requirements of specific new energy vehicle chassis aluminum forgings. Automobile chassis materials require higher strength to meet usage needs. Therefore, it is necessary to optimize the existing aluminum alloy materials and improve the material strength while meeting the requirements of lightweight.

[0003] Therefore, providing a high-strength aluminum alloy material for vehicle chassis aluminum forgings to improve the strength of the aluminum alloy material is an urgent problem to be solved by the present invention.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a high-strength aluminum alloy material for automobile chassis aluminum forgings, which further improves the strength of the aluminum alloy material while meeting the requirements of lightweight.

[0006] To achieve the above objectives, the present invention provides a high-strength aluminum alloy material for automobile chassis aluminum forgings, wherein the high-strength aluminum alloy material comprises the following components: 0.035-0.1% Cu, 1.14-1.35% Si, 0.201-0.32% Fe, 0.65-0.82% Mn, 0.13-0.82% Mg, 0.015-0.045% Ti, 0.02-0.065% Zn, 0.13-0.85% Cr and the balance Al.

[0007] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Cu content in the high-strength aluminum alloy material is 0.065-0.085%.

[0008] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Si content in the high-strength aluminum alloy material is 1.2-1.3%.

[0009] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Fe content in the high-strength aluminum alloy material is 0.25-0.28%.

[0010] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Mn content in the high-strength aluminum alloy material is 0.68-0.78%.

[0011] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Mg content in the high-strength aluminum alloy material is 0.33-0.62%.

[0012] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Ti content in the high-strength aluminum alloy material is 0.025-0.035%.

[0013] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Zn content in the high-strength aluminum alloy material is 0.03-0.055%.

[0014] In a preferred embodiment of the present invention, in order to further improve the strength of the aluminum alloy material, the Cr content in the high-strength aluminum alloy material is 0.33-0.65%.

[0015] The present invention provides a high-strength aluminum alloy material for automotive chassis aluminum forgings. The high-strength aluminum alloy material comprises the following components: 0.035-0.1% Cu, 1.14-1.35% Si, 0.201-0.32% Fe, 0.65-0.82% Mn, 0.13-0.82% Mg, 0.015-0.045% Ti, 0.02-0.065% Zn, 0.13-0.85% Cr, and the balance Al. Compared to existing aluminum alloy materials, the high-strength aluminum alloy material provided by the present invention significantly improves its strength, including tensile strength, yield strength, and elongation, making it more suitable for use in automotive chassis aluminum forgings.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description. DETAILED DESCRIPTION

[0017] The following is a detailed description of the specific embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0018] Example 1

[0019] The high-strength aluminum alloy material includes the following components: 0.1% Cu, 1.35% Si, 0.32% Fe, 0.82% Mn, 0.82% Mg, 0.045% Ti, 0.065% Zn, 0.85% Cr and the balance Al.

[0020] Example 2

[0021] The high-strength aluminum alloy material includes the following components: 0.035% Cu, 1.14% Si, 0.201% Fe, 0.65% Mn, 0.13% Mg, 0.015% Ti, 0.02% Zn, 0.13% Cr, and the balance Al.

[0022] Example 3

[0023] The high-strength aluminum alloy material includes the following components: 0.065% Cu, 1.24% Si, 0.255% Fe, 0.75% Mn, 0.53% Mg, 0.025% Ti, 0.045% Zn, 0.43% Cr and the balance Al.

[0024] Comparative Example

[0025] Commonly used 6082 aluminum alloy material composition: 0.5% Cu, 1.3% Si, 1.2% Fe, 1% Mn, 1.2% Mg, 0.3% Ti, 0.8% Cr and balance Al.

[0026] It can be seen from the above embodiments and comparative examples that the high-strength aluminum alloy material provided by the present invention has higher tensile strength, yield strength and elongation than the existing 6082 aluminum alloy material.

[0027] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0028] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0029] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A high-strength aluminum alloy material for automobile chassis aluminum forgings, It is characterized in that The high-strength aluminum alloy material includes the following components: 0.035-0.1% Cu, 1.14-1.35% Si, 0.201-0.32% Fe, 0.65-0.82% Mn, 0.13-0.82% Mg, 0.015-0.045% Ti, 0.02-0.065% Zn, 0.13-0.85% Cr and the balance Al.

2. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Cu content in the high-strength aluminum alloy material is 0.065-0.085%.

3. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Si content in the high-strength aluminum alloy material is 1.2-1.3%.

4. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Fe content in the high-strength aluminum alloy material is 0.25-0.28%.

5. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Mn content in the high-strength aluminum alloy material is 0.68-0.78%.

6. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Mg content in the high-strength aluminum alloy material is 0.33-0.62%.

7. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Ti content in the high-strength aluminum alloy material is 0.025-0.035%.

8. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Zn content in the high-strength aluminum alloy material is 0.03-0.055%.

9. The high-strength aluminum alloy material according to claim 1, It is characterized in that The Cr content in the high-strength aluminum alloy material is 0.33-0.65%.

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