What is upset forging?
Performed on bar stock, upset forging decreases the length of the stock and increases its cross-section. High pressures deform the metal and force material into a designated area of the bar. The material is shaped into tools such as bolts, pinions, drill rods, and other objects where high strength is a necessity. Upset forging refines the mechanical properties by re-orienting the grain flow to the shape of the tool. The result is a component which is inherently stronger than that which has been cast, welded, or machined.
