Two-step foaming process combined with hot-rolling in fabrication of an aluminium foam sandwich panel

被引:18
作者
Lu, Xiaotong [1 ]
Luo, Hongjie [1 ,2 ]
Yang, Shijie [1 ]
Wei, You [1 ]
Xu, Jianrong [1 ]
Yao, Zhi [1 ]
机构
[1] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
[2] Minist Educ Mat Adv Preparat, Engn Technol Res Ctr, Shenyang 110819, Peoples R China
基金
中国国家自然科学基金;
关键词
AFS; Melt foaming; Hot rolling; Porous materials; Adhesion;
D O I
10.1016/j.matlet.2020.127427
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The present study addresses a new aluminium foam sandwich (AFS) manufacturing process by simplifying the technological processes and reducing costs by use of a two-step foaming process and hot-rolling. The interface between the coversheet and precursor core was bonded tightly by four passes of hot-rolling at 480 degrees C to realise simultaneous metallurgical bonding and foaming. The addition of Mg and pre-heated SiC makes the foaming process more stable and increases the apparent viscosity of the melt and decreases the adverse effects of gravity drainage and capillary action. The optimum foaming conditions occurred at a temperature of 720 degrees C for between 270 s and 390 s. (C) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页数:4
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