Flat rolling of continuously cast Al-Cu compound strips with structured interface

The increasing need for high performance materials for lightweight constructions results in a rising demand for compound materials. Electric vehicles require innovative materials to face the challenges of the increasingly widespread production of batteries. Aluminium copper compounds present an answer to these new challenges as they combine the lightweight potential of aluminium with the high electric conductivity of copper. The combination of continuous compound casting and roll bonding is a way to produce aluminium copper compounds in a cost-efficient way. This paper aims to set the foundation of a new approach to process compound parts despite increased formation of brittle intermetallic phases at the interface. An adhesive interface between the metals was accomplished by controlled melting of aluminium onto a copper cylinder. Aluminium copper compounds with a geometric interface are die cast in a steel mould and rolled afterwards. The compound rolling process is simulated by an FE-model and tested on a rolling mill to verify the feasibility of the interface structure.     «

The increasing need for high performance materials for lightweight constructions results in a rising demand for compound materials. Electric vehicles require innovative materials to face the challenges of the increasingly widespread production of batteries. Aluminium copper compounds present an answer to these new challenges as they combine the lightweight potential of aluminium with the high electric conductivity of copper. The combination of continuous compound casting and roll bonding is a wa...     »