摘要
液态模锻技术在生产A356铝合金轮毂方面具有特殊的优势。对液态模锻A356铝合金汽车轮毂不同部位的微观组织进行了观察分析,测试了不同部位合金的硬度。结果表明:内轮缘部位Si偏析严重,轮辐部位形成粗大的树枝晶;轮辐的硬度相对较低。结果对生产实际具有指导意义。
Liquid die forging technology has special advantages in the production of A356 aluminum alloy wheel hub. The microstructures in different parts of liquid die forging of A356 aluminum alloy wheel hub were observed and analyzed, and the hardness of the alloy in different parts was tested. The results show that Si segregation of the inner flange is serious, and spokes form coarse dendritic crystal, hardness of which is relatively low. The results have directive significance to the production practice.
出处
《热加工工艺》
CSCD
北大核心
2016年第17期150-151,155,共3页
Hot Working Technology
关键词
液态模锻
轮毂
A356合金
硬度
微观组织
liquid die forging
wheel hub
A356 alloy
hardness
microstructure
