Sections 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. which, if driven into the A cavity, or series of cavities (multiple), machined into a forging die to produce a desired configuration in the workpiece during forging. while the metal is hot, would In forging, a condition in which the flash line is not entirely in one plane. Where two or more plane changes occur, it is called compound lock. Where a lock is placed in the die to compensate for die shift caused by a steep lock, it is called a counterlock.... More themselves into a The portion of the die surface that shapes the forging. and prevent removal of the forging without distortion.