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Swirl enthalpy equilibration cuts cast aluminum porosity.(Forming/Processing)

Advanced Materials & Processes,  May, 2004  

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A manufacturing technology that reduces porosity in high-performance aluminum auto castings has reportedly been developed by Alcan and others at the National Research Canada Aluminum Technology Centre, Boucherville, Quebec. The process, which has been patented by Alcan, is based on its Swirl Enthalpy Equilibration Device (SEED).

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It is a variation of the high-pressure die casting of semisolid aluminum, but is more efficient and lower in cost. The process consists of taking a billet of rheocast aluminum alloy and cutting it into sections. The pieces are heated until they reach a ...

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