H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K7/16—Structural association with mechanical loads, e.g. with hand-held machine tools or fans for operation above the critical speed of vibration of the rotating parts
Procede et dispositif de tronconnage d'une piece tubulaire de grand diametre en materiau rigide, notamment a section ovalisee, telle qu'un tuyau en fonte