Shrink scale

A measuring scale or rule, used in dieThe machined recess in a die that gives the forging its shape. layout(1) Transferring drawing or sketch dimensions to templates or dies for use in sinking dies. (2) A detailed inspection operation in which significant dimensions of a forging are checked against blueprint specifications., on which graduations are expanded to compensate for thermal contraction (shrinkageThe contraction of metal during cooling after hot forging. Die impressions are made oversize according to precise shrinkage scales to allow the forgings to shrink to design dimensions and tolerances.) of the forgingThe process of working metal to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. during cooling.