Method for repairing a crack in an electromechanical rotor,...

Details Method for repairing a crack in an electromechanical rotor,... Method for repairing a crack in an electromechanical rotor,...

2011-01-11

2011-01-11

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Repairing

C029S402060, C029S402070, C029S402130, C029S402160, C029S889100

Reexamination Certificate

active

07866020

ABSTRACT:
A method for repairing a crack in an electromechanical rotor (10), including forming a plurality of slots (12) on a periphery of a core portion (11) of an electromechanical rotor (10) along an axial direction thereof; inserting coils into the slots (12), respectively; forming a plurality of wedges for maintaining the coils in the slots (12), respectively; and forming a cut hole (20) at the core portion (11) from an outer surface of the core portion (11) so as to remove at least a deeper area of a crack created at the core portion (11) at a contacting surface between the corresponding wedge and the corresponding slot (12).

REFERENCES:
patent: 4457176 (1984-07-01), Scholz
patent: 6849972 (2005-02-01), Barnes et al.
patent: 2004/0216295 (2004-11-01), Bridges et al.
patent: 4-29304 (1992-05-01), None
patent: 5-74304 (1993-10-01), None
patent: 7-40774 (1995-05-01), None
patent: 7-44802 (1995-05-01), None

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