Swell is the enlargement of the mold cavity because of the molten metal pressure, which results in localized or overall enlargement of the casting.
Sand wash is a casting defect which Occurs near the ingates as rough lumps on the surface of a casting.
A casting defect which occurs near the in gates as rough lumps on the surface of a casting is known as sand wash.
A casting defect which occurs due to improper venting of sand is known as Blow holes.
In metalworking, a fuller is a tool used to form metal when hot. The fuller has a rounded, either cylindrical or parabolic, nose, and may either have a handle or a shank.
The shank of the lower fuller allows the fuller to be inserted into the hardy hole of the anvil.