Flat die forging (open die forging)
The process of working metal to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. worked between flat or simple contour The metal blocks into which forging impressions are machined and from which forgings are produced. by repeated strokes and manipulation of the workpiece. Also known as “hand” or “smith” forging. See Open-Die Forging.