Casting process can be classified on the basis of expandable mould and multiple-use mould as shown in Figure 20.1. Expandable mould is destroyed after solidification of the casting. But, multiple-use mould can be used to make many castings. Expandable mould is used for very complicated casting design. In this process, production rate is lower than the multiple-use mould. A multiple-use mould is used for simple casting and it has high production rate.
Figure 20.1 Classification of Casting Process
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