Cast in Inserts

Cast-In Inserts are normally made from cast iron or steel. A metal core needs to be placed in a mold so that it is parallel to the parting line of the mold to allow for it to be readily removed before the casting is ejected from the mold cavity. The shape of the insert must also be conducive for an easy removal from the casting. Cast-in inserts allow for a better surface finish and rapid solidification of the casting, which improve the grain structure and subsequently the mechanical properties of the casting. Examples of cast-in inserts would be wear resistant pins, heating elements, or even aluminum extrusions.

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