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作 者:马小军 邹书云 刘海滨 刘豪杰 杨曼 MA Xiao-jun;ZOU Shu-yun;LIU Hai-bin;LIU Hao-jie;YANG Man(Hubei Hangte Equipment Manufacturing Co.,Ltd.,Jingmen 448000,Hubei,China)
机构地区:[1]湖北航特装备制造股份有限公司,湖北荆门448000
出 处:《铸造》2024年第11期1597-1605,共9页Foundry
摘 要:针对AlSi7Mg0.3铝合金副车架产品体积大且壁厚不均匀、局部热节大和易补缩不足等难点,对其壁厚和补缩通道的结构进行了合理的设计。通过铸造工艺模拟仿真分析、X光检查、力学性能分析以及实物台架试验性能对比等进一步试验验证。验证结果表明,局部特殊部位的壁厚及结构优化,能提升产品强度,满足台架耐久性试验;合理设置补缩通道,结合铸造过程水冷工艺,实现顺序凝固,有效地降低了缩松类缺陷,提高了产品质量。Taking into account the difficulties of large volume and uneven wall thickness in the subframe product of AlSi7Mg0.3 aluminum alloy,as well as the local hot spot leading to insufficient shrinkage,a reasonable design of wall thickness and shrinkage channels was carried out for this type of structure.The simulation analysis of casting process simulation,X-ray inspection,mechanical property analysis and physical bench test performance comparison were further verified through experiments.The verification results showed that the local special wall thickness and structural optimization could improve the product strength and meet the durability test requirements of the bench;the rational setting of shrinkage channels,combined with the water cooling process of the casting process,could achieve sequential solidification and effectively reduce shrinkage porosity defects to improve product quality.
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