Material Surface Roughness Change in Twin Roll Casting of Aluminium as Cast Sheet Product

Continuous casting of aluminum sheet products has so many advantages due to its short production route. These advantages can be listed as low production cost, low investment cost and short delivery time. However, this method has some technical insufficiencies that are mostly related with quality issues. These disadvantages can be listed as low alloy range, mechanical properties and surface quality. The most critical issue is surface quality. To improve casted sheet surface quality, cold mill performance of continuous cast coils and final surface properties; some operational applications are needed to guarantee for a sustainable process parameters and repeatable measuring method. With this work, it is aimed to evaluate the surface quality in terms of surface roughness changes with casting and cold rolling operations. Besides material’s roughness, change in casting shell and work roll roughness, in-going material roughness and planning parameters of casting and cold rolling operations are involved.