Die casting is an efficient process that is used to cast parts with good precision. Die casters make use of different types of dies to cast varied parts with different properties and features. The various types of dies used in the die casting process are discussed below.
Single Cavity Die
As the name indicates, the number of cavity in this type of die is only one and is capable of making only one unit at a time. This type of die is used in situations where the die cast machine available is able to accommodate only single cavity dies, with respect to shot height, locking force, and the size of the die, or in cases where there is no need to use multiple cavity dies as the production requirement is low. Single cavity dies are also used to make components that need center gating and those complex components that need side cores in more than one direction.
Multiple Cavity Die
In these dies, the number of cavity will be more than one, and all the cavities of the die will offer identical parts. These dies are used when there is need for high production quantity, when the die casting machine used is capable of accommodating dies with more than one cavity or when it is economically feasible to use these dies while considering the initial investments and the unit price to make a component.
Combination Die
The number of cavities is more in these types of dies, but the difference from multiple cavity dies is that the combination die can be used to make more than one type of component. Almost, all of the types of combination dies can be considered “Family Dies” in which the parts that are cast goes into a single product assembly. These dies are widely used to cut down the casting costs.
Unit Die
Unit dies are separate dies that are small and can be inserted into a master holding die. Usually, the master die will be a fixed member, but unit dies will be changed to make varied components. Unit dies will include cover halves and ejector and most of them will be single cavity dies. Unit dies need only very small investments and can be used to make various components by changing the die inserts.