Definition and Types of Pattern

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 Pattern:
Pattern is that the replica of the device which is that the output of casting process. This when molded in sand forms mold. After filling mold with the molten metal there's a formation of casting. Patterns play a really important role in casting as they decide the standard also as perfection during a particular casting process. Gates and runners are the foremost important components in several sorts of pattern. Pattern is that the basic requirement for creation of mold and it's always bigger than the dimensions of casting. There should be a correct selection of pattern so it must be ready to sustain rough handling. It forms mold cavity for casting processes. The patterns could also be made from metals like aluminum, brass, plaster and wax.

  Sorts of Patterns:

 Types of Pattern



 Following are the common sorts of patters:
1. Single piece pattern
2.  Split pattern
3. Gated pattern
4. Multi piece pattern
5. Match plate pattern
6. Skeleton pattern
7. Sweep pattern
8. Lose piece pattern
9. Follow board pattern
10. Cope and drag pattern
11. Segmental pattern and
12. Shell pattern




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