Sometime, it is impossible to use core print to support the core. In this case, a metallic support is used which is known as chaplet. Chaplet is made of same material as the material of casting. It gets fused with molten metal.
Chaplets are placed in a mould between the mould face and the core as shown in Figure 20.17. It should be in such a position that its head is large enough to provide large bearing surface and stern thin to fuse properly into the molten metal.
Figure 20.17 Use of Chaplets in a Sand Mould
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