(1) 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. made by upsetting an appropriate length of A section hot rolled from a billet to a form, such as round, hexagonal, octagonal, square, or rectangular, with sharp or rounded corners or edges, with a cross-sectional area of less than 16 sq in. (A solid section that is long in relation to its cross-sectional dimensions, having a completely symmetrical cross section and whose width or greatest distance between parallel faces is 3/8 in. or more).... More, A semifinished, cogged, hot-rolled, or continuous-cast metal product of uniform section, usually rectangular with radiused corners. Billets are relatively larger than bars. See Bloom. or A semifinished product of square, rectangular, or even round cross section, hot rolled, or forged. For steel, the width of a bloom is not more than twice the thickness, and the cross sectional area is usually not less than about 36 sq. in. No invariable rule prevails for distinguishing between blooms and billets; the terms are frequently used interchangeably.... More. (2) Working metal to increase the cross-sectional area of a portion or all of the The material to be forged regardless of form. Also, an individual piece of metal used to produce a single forging.. (3) A forging formed by The upsetting of wire, rod, or bar stock in dies to form parts that usually contain portions that are greater in cross-sectional area than the original wire, rod, or bar. or gathering the material by pressure upon hot or Faults produced in a forging by incorrect tool design or incorrect flow of steel that results in the formation of a crack in the forging surface. metal between The metal blocks into which forging impressions are machined and from which forgings are produced. operated in a horizontal plane.