Results
Title

Study on the mechanism of strengthening the bonding strength of Cu/Al composite strip by cross shear behaviour from vibration cast-rolling process.

Authors

Li, Lingxiao; Du, Qiuyue; Sun, Minghan; Liu, Xiaotao; Zhao, Chao

Abstract

To effectively improve the interfacial bonding strength of a Cu/Al-layered composite strip prepared by a short process forming method of solid‒liquid cast-rolling, a novel process of vibration cast-rolling composite was proposed in this study. To verify the effectiveness of the novel technology in improving the bonding strength and deeply analyse the mechanism of this effect, pilot-scale vibration cast-rolling equipment was built. A thermal mechanical coupling numerical simulation model with the same size was established. Experiments and simulations showed that this method can effectively control the bonding strength by affecting the thickness of the interface layer. The control mechanism uses reciprocating cross shear behaviour caused by the roll vibration to cause 'dynamic impact' and 'repeated rolling' on the interface layer in the process of plastic deformation. This results in the crushing and thinning of the brittle phase at the interface to improve the interface bonding strength.

Subjects

BOND strengths; INTERFACIAL bonding; SEALING (Technology); MATERIAL plasticity; COMPUTER simulation; ALUMINUM composites

Publication

International Journal of Advanced Manufacturing Technology, 2022, Vol 121, Issue 11/12, p7413

ISSN

0268-3768

Publication type

Academic Journal

DOI

10.1007/s00170-022-09851-4