Different Aluminum Castings Processes. Majority of the aluminum casting processes made in the United States are for automotive industry. Aluminum cast parts are also frequently used in power transmission, architectural structural and ornamental purposes. Aluminum cast parts are commonly utilized in vehicles such as aircraft, trucks, automobiles, railroad cars and others.
Aluminum casting process involves the melting of the aluminum or aluminum alloys and pouring it into a mold of preferred shape and allowed to harden. The solidified casting is then ejected out to complete the process. Casting is preferable in the production of complex shapes and more refined surface. It is oftentimes used in shaping materials such glass, plastics, metals and alloys.
In casting aluminum processes, feasibility and cost factors, and quality factors have significant effect in the selection of which casting method should be used. There are various methods involve in the aluminum casting processes, and these are grouped into two categories: expendable mold casting and non-expendable mold casting. The expendable mold casting involves the use of temporary, non-reusable molds and these include the waste molding of plaster, sand casting, plaster casting of metals, casting of plaster, concrete, or plastic resin, shell molding, investment casting, and bonded sand processes. expendable mold casting on the other hand, as differentiated from those methods under the expendable mold castings, need not be reformed after each production cycle; and these include the permanent mold casting, die casting, semi-solid metal casting, centrifugal casting, and continuous casting. Some other methods of casting are lost foam, squeeze casting, and hot isostatic pressing.
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