Effect of Mechanical Surface Treatment on the Bonding Mechanism and Properties of Cold-Rolled Cu/Al Clad Plate

Chinese Journal of Mechanical Engineering

A. I. Plokhikh¹  Yi Jia²  Tao Wang²  Hui Niu²  Qingxue Huang²  Jianchao Han²  Sha Li²  Zhongkai Ren² 

[1] Bauman Moscow State Technical University (BMSTU), 105005, Moscow, Russian Federation;College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, 030024, Taiyuan, China;Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment, Ministry of Education, 030024, Taiyuan, China;TYUT-UOW Joint Research Centre, Taiyuan University of Technology, 030024, Taiyuan, China;

关键词: Cu/Al clad plates;    Cold rolling bonding;    Surface treatment;    Bonding mechanism;    Bonding property;   

DOI  :  10.1186/s10033-020-00483-x

来源: Springer

【 摘 要 】

In the case of valuable cold-rolled Cu/Al clad plates, billet surface treatment before rolling is a significant process that can affect the bonding efficiency and quality. While the current studies primarily focus on the influence of rolling parameters, insufficient attention has been paid to surface treatment. In this study, the effects of mechanical surface treatment on the bonding mechanism and bonding properties of cold-rolled Cu/Al clad plates were investigated. The results showed that different mechanical surface treatments have significant effects on the surface morphology, roughness, and residual stress. In addition, the effect of surface mechanical treatment on bonding quality was also observed to be critical. When the grinding direction was consistent with the rolling direction (RD), the bonding quality of the Cu/Al clad plates was significantly improved. After surface treatment along the RD for 20 s, the Cu/Al clad plates showed the highest shear strength (78 MPa), approximately four times as high as that of the unpolished samples. Simultaneously, the peel strength of this process was also significantly higher than that achieved via the other processes. Finally, on the basis of the surface morphology, roughness, and residual stress, the effect of surface treatment on the bonding mechanism and bonding properties of Cu/Al clad plates was analyzed. This study proposes a deeper understanding of the bonding behavior and bonding mechanism for cold rolled clad plates processed via mechanical surface treatment.

【 授权许可】

CC BY