Twin roll casting of aluminium alloys

Twin roll casting can be used to produce aluminium sheet from ≈10 to 0.5 mm thick directly from the melt. Although sheet can be produced, various defects arise which limit the range of operating conditions suitable for commercial exploitation. Over the past 10 years the twin casting process has been modelled, and extensive experimental work carried out in Oxford. This has enabled many of the microscopic and macroscopic defects that occur to be described and explained.