Perforated sheets mfr. for laminations in electromagnetic devices - esp. rotors and stators in synchronous machines

摘要

The entry slits in the sheet for the introduction of the windings are formed in a first punching operation and the holes for contg. the winding during another operation The sheets are used for the laminations of rotors and stators in synchronous machines. Greater precision is achieved since the tolerances of the tools are reduced and the tools undergo less bending during punching. The tools are less complicated.