Rotary swaging is a process for shaping

In swaging, also known as rotary swaging or radial forging, a rod or tube is reduced in diameter by the reciprocating radial movement of two or four dies.

• In this process, the diameter of a rod or a tube is reduced by forcing it into a confining die.
• A set of reciprocation dies provides radial blows to cause the metal to flow inward and acquire the form of the die cavity.
• The die movements may be of in – and – out type or rotary.
• The workpiece is held stationary and the dies rotate, the dies strike the workpiece at a rate as high as 10 - 20 strokes per second.
• Swaging is used to reduce the diameter of a tube or a rod at the end of the workpiece to create a tapered section.
• A mandrel is required to control the shape and size of the internal diameter of tubular parts during swaging.