AluCAD II Aluminium Cast Alloy Development

Background
Complex integrated cast aluminum structures contribute to competitiveness and sustainability in the transport and automotive industry through increased design flexibility and quality combined with both reduced investments and lower vehicle weight. Scrap-based material production with 10% of the energy consumption relative to primary production thus becomes significant funding for energy saving and circularity. However, this requires the development of scrap-based alloys with high and stable strength in the cast state through the right hardening feasibility study in the material already in the cast state, which commercially available aluminum casting alloys lack. can provide primary properties without special heat treatment with the following CO2 reduction potential as a consequence. AluCAD II intends to reach set circularity goals and define a secondary alloy with primary properties and higher strength without special heat treatment than available alloys
Aim Pre study II
Through calculations and tests based on results in the feasibility study I including other alloy combinations and higher alloy contents define scrap-based alloys with 50% higher yield strength and higher ductility without special hardening relative to the corresponding primary reference alloy. Thus, through recycling, the project shall contribute to reduced CO2 emissions by up to approx. 450 kTon / year and car manufacturers depending on the volume and proportion of secondary alloys in production. The project contributes to Circularity over the vehicle’s value chain through Circular materials, More efficient design, weight reduction and better quality through high and ageing stable strength in the component