Anti-fatigue and corrosion-resistant forged Al-Mg-Si-Zr aluminum alloy wheel and preparation method thereof

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Anti-fatigue and corrosion-resistant forged Al-Mg-Si-Zr aluminum alloy wheel and preparation method thereof

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LI HONGGUANG / SUN PU / LI QING / DING YOUWANG / LI DONGDONG / JIA ZIRUI / QIN ZUOFENG / MU RUIPENG

The invention belongs to the technical field of forged aluminum alloy, and particularly relates to an anti-fatigue and corrosion-resistant forged Al-Mg-Si-Zr aluminum alloy wheel and a preparation method thereof. The aluminum alloy wheel is composed of Si, Mg, Cu, Fe, Mn, Cr, Ti, Zr and the balance Al. The aluminum alloy material is forged by optimizing alloy components, carrying out graded homogenization treatment on a cast rod and adopting an optimized aluminum rod heating process and a solid solution and aging process after die forging, the fatigue performance can be circulated for about 7 * 107 weeks under the pressure of 200 Mpa, and the stripping corrosion resistance reaches the PA level. In addition, the tumbling process and the surface treatment process are added, the fatigue resistance and the corrosion resistance of the aluminum alloy wheel are further enhanced, the requirement of a wheel biaxial fatigue test is met, and the requirement of an international first-class main engine plant is met.

本发明属于锻造铝合金技术领域，具体涉及一种抗疲劳及耐腐蚀的锻造Al‑Mg‑Si‑Zr铝合金车轮及其制备方法。该铝合金车轮组成为：Si、Mg、Cu、Fe、Mn、Cr、Ti、Zr和余量Al。本发明通过优化合金成分，铸棒采用分级均匀化处理，模锻之后采用优化的铝棒加热工艺、固溶和时效工艺，锻造铝合金材料，疲劳性能在200Mpa下能循环7x107左右周次，耐剥离腐蚀达到了PA级。另外增加了滚光工艺和表面处理工艺，进一步增强了铝合金车轮的耐疲劳及耐腐蚀性能，并且通过了车轮双轴疲劳测试要求，满足了国际一流主机厂的要求。

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Title :

Anti-fatigue and corrosion-resistant forged Al-Mg-Si-Zr aluminum alloy wheel and preparation method thereof

Additional title:

一种抗疲劳及耐腐蚀的锻造Al-Mg-Si-Zr铝合金车轮及其制备方法

Contributors:

LI HONGGUANG (author) / SUN PU (author) / LI QING (author) / DING YOUWANG (author) / LI DONGDONG (author) / JIA ZIRUI (author) / QIN ZUOFENG (author) / MU RUIPENG (author)

Publication date :

2022-08-09

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

C22C Legierungen , ALLOYS / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / B60C VEHICLE TYRES , Fahrzeugreifen / C22F CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS , Verändern der physikalischen Struktur von Nichteisenmetallen oder Nichteisenlegierungen / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL