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Three-sheet aluminum-alloy forged hub material

An aluminum alloy, three-piece technology, which is applied in the field of wheel hub materials, can solve the problems of three-piece aluminum alloy forged wheel hubs that cannot meet the requirements of scalability and automatic fatigue recovery function, and have insufficient ductility, so as to achieve good scalability and automatic recovery. Good fatigue recovery function and stretchability

Active Publication Date: 2015-01-07
宁波奇宇特种轮毂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned three-piece aluminum alloy forged wheels are often produced with 6 series (aluminum-magnesium-silicon) alloy materials, but because the ductility of the 6 series (aluminum-magnesium-silicon) alloy materials is not enough, the three-piece aluminum alloy forged wheels after production The scalability and automatic fatigue recovery functions are not up to the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The three-piece aluminum alloy forged wheel hub material provided in this embodiment has a chemical composition: the proportion of Si is 0.5%, the proportion of Cu is 0.2%, the proportion of Mn is 0.1%, the proportion of Mg is 0.9%, and the proportion of Cr is 0.1%. , the proportion of Zn is 0.2%, the proportion of Ti is 0.1%, the proportion of Re is 0.1%, the proportion of Fe is 0.5%, the proportion of Pb is 0.01%, other metal or non-metal components are individually ≤0.05%, and the total amount is ≤ 0.15%, Al balance, in mass%.

[0012] In the actual production of the three-piece aluminum alloy forged wheel hub, forging is carried out according to the above-mentioned chemical composition ratio. The temperature of the solution treatment during the forging process is 520°C, and the temperature of the artificial aging treatment is 160°C, and lasts for 8 hours. Artificial aging is carried out as soon as possible after quenching to avoid parking effects.

[0013] After he...

Embodiment 2

[0015] The three-piece aluminum alloy forged wheel material provided in this embodiment has a chemical composition: the proportion of Si is 0.7%, the proportion of Cu is 0.3%, the proportion of Mn is 0.2%, the proportion of Mg is 1.0%, and the proportion of Cr is 0.2%. , the proportion of Zn is 0.3%, the proportion of Ti is 0.3%, the proportion of Re is 0.3%, the proportion of Fe is 0.4%, the proportion of Pb is 0.005%, other metal or non-metal components are individually ≤0.05%, and the total amount is ≤ 0.15%, Al balance, in mass%.

[0016] In the actual production of the three-piece aluminum alloy forged wheel hub, forging is carried out according to the above-mentioned chemical composition ratio. The temperature of the solution treatment during the forging process is 530°C, and the temperature of the artificial aging treatment is 170°C, and lasts for 10 hours. Artificial aging is carried out as soon as possible after quenching to avoid parking effects.

[0017] Three-piec...

Embodiment 3

[0019] The three-piece aluminum alloy forged wheel hub material provided in this embodiment has a chemical composition: the specific gravity of Si is 0.8%, the specific gravity of Cu is 0.4%, the specific gravity of Mn is 0.3%, the specific gravity of Mg is 1.2%, and the specific gravity of Cr is 0.3%. , the proportion of Zn is 0.4%, the proportion of Ti is 0.6%, the proportion of Re is 0.4%, the proportion of Fe is 0.4%, the proportion of Pb is 0.005%, other metal or non-metal components are individually ≤0.05%, and the total amount is ≤ 0.15%, Al balance, in mass%.

[0020] In the actual production of the three-piece aluminum alloy forged wheel hub, the material is forged according to the above-mentioned chemical composition ratio. Artificial aging is carried out as soon as possible after quenching to avoid parking effects.

[0021] Three-piece aluminum alloy forged wheels after heat treatment: the tensile strength σb (MPa) is 312km / mm 2 ,; Yield strength σ0.2 (MPa) is 273...

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Abstract

The invention discloses a hub material, and particularly discloses a three-sheet aluminum-alloy forged hub material. The three-sheet aluminum-alloy forged hub material comprises chemical elements in percentage by mass as follows: 0.5-0.8% of Si, 0.2-0.4% of Cu, 0.1-0.3% of Mn, 0.9-1.2% of Mg, 0.1-0.3% of Cr, 0.2-0.4% of Zn, 0.1-0.6% of Ti, 0.1-0.4% of Re, at most 0.5% of Fe, at most 0.01% of Pb, and the balance of Al, wherein the content of other single element is at most 0.05% and the total content of other elements is at most 0.15%. By adopting the three-sheet aluminum-alloy forged hub material, the defect that the flexibility and the automatic fatigue recovery function of the existing aluminum-alloy forged hub made of an aluminum-magnesium-silicon alloy (alloy 6 series) material are unable to meet the technical requirement is solved; the three-sheet aluminum-alloy forged hub material disclosed by the invention has good malleability; and the flexibility and the automatic fatigue recovery function of the three-sheet forged hub made of the material are good, and the three-sheet forged hub is not fractured immediately even when encountering a big impact.

Description

technical field [0001] The invention relates to a wheel hub material, in particular to a three-piece aluminum alloy forged wheel hub material. Background technique [0002] The quality and reliability of the wheels are not only closely related to the safety of the vehicle, but also closely related to the stability, comfort and safe operation of the vehicle during driving. Therefore, the wheel is required to have high precision in size and shape, good dynamic balance, high fatigue strength, good heat dissipation performance, good rigidity and elasticity. With the development of automobiles, the grades of automobiles are getting better and better, the speed of automobiles is getting faster and faster, and the requirements for individualization are getting higher and higher, so the requirements for automobile wheels are also getting higher and higher. [0003] Common aluminum wheels are widely used in automobiles in our country, which are cast as a whole by molds. The shape of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08
Inventor 徐永生俞善龙
Owner 宁波奇宇特种轮毂有限公司