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

Authors
  • Han, Jianchao1, 2, 1
  • Niu, Hui1, 2, 1
  • Li, Sha1, 2, 1
  • Ren, Zhongkai1, 2, 1
  • Jia, Yi1, 2, 1
  • Wang, Tao1, 2, 1
  • Plokhikh, A. I.3
  • Huang, Qingxue1, 2, 1
  • 1 Taiyuan University of Technology, Taiyuan, 030024, China , Taiyuan (China)
  • 2 Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment, Ministry of Education, Taiyuan, 030024, China , Taiyuan (China)
  • 3 Bauman Moscow State Technical University (BMSTU), Moscow, 105005, Russian Federation , Moscow (Russia)
Type
Published Article
Journal
Chinese Journal of Mechanical Engineering
Publisher
Springer Singapore
Publication Date
Oct 28, 2020
Volume
33
Issue
1
Identifiers
DOI: 10.1186/s10033-020-00483-x
Source
Springer Nature
Keywords
License
Green

Abstract

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.

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