Tuesday, September 7, 2010

Different type of Castings and its process

Today Castings is used for creating desired and solide shape. Casting helping industries grow. There are different type of castings and process like lost wax casting, die casting, sand casting. Castings is the one type of manufacturing process

Lost wax Castings

This is oldest metal forming or casting process. Lost wax casting used for to manufacturing of huge parts like turbocharger wheels, golf club heads, elect huge variety of parts ranging from turbocharger wheels to golf club heads, from electronic boxes to hip replacement implants. Lost wax casting used for investment castings. Today investment castings are used for aircraft engine and airframe parts. Lost wax investment castings is similar to the Lost Foam Casting in which expendable foam patterns are uses for casting productions. Foam pattern is remaining in mold during metal pouring and it’s replaced by molten metal


Die Casting

Die casting is one of the non expandable casting process. Its one type of process in which molten metal is forced under high pressure into mold cavities. In die casting mold dies is  used again and again for producing variety of casting size, shape and thickness. Parts, which are manufacturing by die casting are heat resistance and maintaining close tolerances. Die casting produces parts with thinner walls, closer dimensional limits, and smoother surfaces




Sand Casting

Sand casting used for make large parts. In sand casting sand used with mold. In sand casting cavity is formed by wood or metal pattern.  Using sand casting method, you can cast large iron bell, and alos small automotive parts. In sand casting, two types of sand used like green sand, which is mixture of silica, and olivine sand. Sand casting is uses for high volume production

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