![]() ![]() ![]() Swaging is normally the method of choice for precious metals since there is no loss of material in the process. Tubes may be tagged (reduced in diameter to enable the tube to be initially fed through the die to then be pulled from the other side) using a rotary swager, which allows them to be drawn on a draw bench. This process is usually called "rotary swaging" or "radial forging". The second category involves two or more dies used to hammer a round workpiece into a smaller diameter.This may also be referred to as "tube swaging". The first category of swaging involves extrusion of the workpiece, forcing it through a confining die to reduce its diameter, similar to the process of drawing wire.Another (less common) pronunciation sometimes heard in the metalworking industries is / ˈ s w ɛ dʒ/ (AHD format: swĕj) (perhaps influenced by sledge as in sledgehammer).Īs a general manufacturing process swaging may be broken up into two categories: Swage is most often pronounced / ˈ s w eɪ dʒ/ ( AHD format: swāj). Swages called " fullers" are specific to making grooves in swords and knives. Swage blocks are anvil-like dies with various shapes forged into them, which are also used for forming metal. These have handles for holding or pegs for attaching to an anvil, and often a flat head for striking with a hammer. Swages were originally tools used by blacksmiths to form metal into various shapes too intricate to make with a hammer alone. The term "swage" comes from the Old French term souage, meaning "decorative groove" or "ornamental moulding". ![]()
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