Rotary swaging for speed.

The manufacturing process

A distinction is made in rotary swaging between infeed swaging, which is used to produce long, reduced cross-sections with comparatively flat transition angles, and plunge swaging, which is used to reduce the cross-section locally with steeper transition angles.

For infeed swaging, the workpiece is moved in an axial direction continuously through the oscillating dies, while the dies rotate around the workpiece. There is a flat calibration plate in the swaging head between the hammer and die.

For plunge swaging, the dies perform a radial closing movement, in addition to oscillating radially. The closing movement is achieved using wedge-shaped hammers and calibration plates. Plunge swaging makes it possible to reduce the cross-section between the ends of the workpiece.

It is possible to combine the two variants of the process and use both infeed and plunge swaging. This involves the dies closing radially, while the workpiece is fed in axially, superimposed on top of the closing movement. This can be used to achieve undercuts of any length.