机械振动对ADC12铝合金消失模铸件性能影响研究
Effect of Mechanical Vibration on Properties of Aluminum Alloy Lost Foam Casting
席红梅 1程精涛2
作者信息
- 1. 成都理工大学工程技术学院,乐山 614000
- 2. 北京科技大学天津学院,天津 301830
- 折叠
摘要
以消失模铸造铸造ADC12铝合金为对象,研究不同机械振动条件对铝合金性能的影响.结果发现,随机械振动峰值加速度的增加,铝合金液产生对流现象并引发枝晶破碎,形核数量不断增加,晶粒逐渐细化;合金抗拉强度随着振动频率、振幅的增加而增大,在振动频率为100 Hz、振幅为0.08 mm时达到最大值,但随着振动频率、振幅的进一步增加,合金抗拉强度开始逐渐下降.
Abstract
The effect of different mechanical vibration conditions on properties of aluminum alloy castings by lost foam casting was investigated.The results indicate that with the increase of peak acceleration of mechanical vibration,con-vection is generated in aluminum alloy melt to induce dendrite breakage,and the amounts of nucleation are increased continuously with refined grain.The tensile strength of aluminum alloy is increased with the increase of vibration fre-quency and amplitude,reaching the maximum value at vibration frequency of 100 Hz and amplitude of 0.08 mm.How-ever,with the further increase of vibration frequency and amplitude,the tensile strength of aluminum alloy is gradually reduced.
关键词
铝合金/机械振动/消失模铸造/铸件性能Key words
Aluminum Alloy/Mechanical Vibration/Lost Foam Casting/Casting Performance引用本文复制引用
基金项目
乐山市科技局重点资助项目(23GDZ010)
成都理工大学工程技术学院基金资助项目(C122018012)
出版年
2024
NETL
NSTL
万方数据