Die shift

The condition that occurs after the diesThe metal blocks into which forging impressions are machined and from which forgings are produced. have been set up in a forgingThe process of working metal to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. unit in which a portion of the impressionA cavity, or series of cavities (multiple), machined into a forging die to produce a desired configuration in the workpiece during forging. of one dieThe machined recess in a die that gives the forging its shape. is not in perfect alignment with the corresponding portion of the other dieThe machined recess in a die that gives the forging its shape.. This results in a mismatchThe misalignment or error in register of a pair of forging dies; also applied to the condition of the resulting forging. in the forging, a condition that must be held within the specified toleranceThe permissible deviation from a specification for any design characteristic..