A shallow A cavity, or series of cavities (multiple), machined into a forging die to produce a desired configuration in the workpiece during forging. machined around the periphery of a The process of working metal to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. The portion of the die surface that shapes the forging. outside the Configuration in the blocking or finishing impression of forging dies designed to restrict or to encourage the growth of flash at the parting line, whichever may be required in a particular case to ensure complete filling of the impression. that acts as a reservoir for excess metal.