Core and its Properties

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Core and its Properties

  1. 1. CORE AND ITS PROPERTIES
  2. 2. What is core?
  3. 3.  Core are the materials used for making cavities and hollow projections which can not normally be produced by pattern alone.  Any complicated contour or cavity can be made by means of core.
  4. 4.  Cores are generally made of sand and even used in permanent mould.  In general , cores are surrounded on all the sides by molten metal and therefore subjected to much more severe thermal and mechanical conditions and as a result core sand should be of higher strength than moulding sand.
  5. 5. CORE PRINTS
  6. 6.  In case of casting where coring is required,provision should be made to support the core inside the mould cavity.  One of the methods that is universally followed is to provide core prints where possible.

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