Method for producing a short circuit rotor and short circuit rotor

A method for producing a short circuit rotor, comprising:

• providing a laminated rotor core with through openings for shorting bars of a squirrel cage as well as providing the shorting bars,
• inserting the shorting bars into the through openings such that an axial overhang remains on both sides,
• placing a main disk with through openings on both sides for the shorting bars, whose axial length corresponds to the overhang, as well as a continuous edge disk immediately adjacent to the main disk and the ends of the shorting bars, wherein the main disk and the edge disk form a shorting ring of the squirrel cage,
• welding the main disk and the edge disk by means of radially encircling electron beam welding,
• wherein the short circuit rotor is axially compressed prior to the welding of the main disk and the edge disk so that the ends of the shorting bars lie against the edge disk with material bonding, and
• wherein the electron beam welding extends to a connecting of the shorting bars to the edge disk.