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Aluminum is amongst those metals which can be ‘cast’ by every process used in metal casting. These processes, in descending order of quantity of aluminum casting are: die casting, permanent mold casting, sand casting, plaster casting, investment casting, and continuous casting. The casting process is selected on the basis of factors such as cost, feasibility, quality, etc.
Feasibility is not a problem, as all the above methods are quite practicable. However, the most suitable casting method can be decided according to the design features or dimensions. For instance-Large products are made using sand casting. The quality factor is also important in selecting the casting process.
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