There are currently 10 terms in this directory beginning with the letter P.
A line on a pattern or casting corresponding to the separation between the cope and drag portions of a sand mold.
The wood, metal, foam or plastic replica of the final product to be made. Patterns usually include gating systems.
A craftsman engaged in production of foundry patterns and core boxes from wood, plastic, or metals, such as aluminum, cast iron, etc.
The shrinkage allowance made on all patterns to compensate for the change in dimensions as the solidified casting cools in the mold from freezing temperature of the metal to room temperature. The pattern is made larger by the amount of shrinkage characteristic of the particular metal in the casting and the amount of resulting contraction to be encountered.
The property of a mold material to allow passage of mold/core gases during the pouring of molten metal.
Properties of matter such as density, electrical and thermal conductivity, expansion and specific heat. This term should not be used interchangeably with “mechanical properties.”