Question

Chaplets are placed between mould and core surfaces
in order to:
(1) Reduce directional solidification
(2) Help local alloying of molten metal
(3) Help easy removal of core from casting
(4) Prevent core movement due to buoyancy

Answer 1

Answer is (4)
Hòpe it will help uhh...

Answer 2

Answer:

To keep the core from swaying owing to buoyancy that's why chaplets are positioned between the mould and core surfaces, the correct answer is 4.

Explanation:

A core is a prefabricated, bonded sand insert that is inserted into the mould to shape the inside of a casting or a section of the casting that the pattern cannot shape. In casting, cores are typically utilised to produce hollow parts or voids.

During the casting process, a chaplet is a tiny metal insert or spacer used in moulds to give core support.

The core is supported by chaplets inside the mould cavity. Chaplets are frequently necessary to be put between the mould wall or base and the core in order to prevent core deflection and obtain the correct shape.