Abstract: The invention describes a method for producing a tubular workpiece, especially a shock-absorber piston rod, wherein, starting out from a tubular initial workpiece (3), a first area (3a) of the initial workpiece (3) is reduced in a first step by a radial forming process for reducing its outer diameter, and a transition area (3c), extending at an angle relative to the longitudinal axis (A) of the tubular initial workpiece (3), is formed, said transition area (3c) extending between said first area (3a) of the initial workpiece (3) having the reduced diameter and a non-reduced second area (3b) following the transition area (3c), characterized in that in a second process step, following the first process step. It is provided according to the transition area (3c) of the initial workpiece (3) is cold-formed to obtain the substantially rectangular shoulder (2) of the workpiece (1).

Abstract: A swaging machine for swaging a workpiece as it is axially fed or for recessing a workpiece when it is axially fixed and which comprises two or more dies and two or more stems for actuating said dies, die guiding means for guiding said dies, a front cover for covering said dies, and wedges extending between said stems and dies to vary the radial spacing of said dies and stems. The machine is provided with a die changing mechanism comprising a pivotally movable or displaceable die handling member, which is formed with juxtaposed chamber, which contain respective gripping means for gripping respective sets of dies, and said die handling member is pivotally movable or displaceable to a plurality of positions in which respective ones of said chambers are centered on a predetermined workpiece feeding axis.