Different types of patterns used in casting



Pattern:



A replica of the the final casting, used to form the mold cavity.

A pattern is an element used
for making cavities in the mould, into which molten metal is poured to produce
a casting. It is not an exact replica of the casting desired.

There are certain essential
differences. It is slightly larger than the desired casting, due to the various
allowances (shrinkage

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