Swaging is a metal forming technique in which the metal is plastically deformed to its final shape. Swaging differs from forging in that the metal is cold worked.
The most common use of swaging is to attach fittings to pipes or cables; the parts loosely fit together, and a mechanical or hydraulic tool compresses and deforms the fitting, creating a permanent joint. Pipe flaring machines are another example.
In sawmills a swage is a tool for forming the kerf on large bandsaw teeth. A clamp attaches a mandrel and die to the tooth and the eccentric die is rotated, swaging the tip.
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