Method of manufacturing a sequential segment joining type...

Details Method of manufacturing a sequential segment joining type... Method of manufacturing a sequential segment joining type...

2006-08-08

2006-08-08

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S598000, C029S605000, C029S732000, C029S840000, C219S075000, C219S125110, C310S184000

Reexamination Certificate

active

07086136

ABSTRACT:
Provided is a method of manufacturing a sequential segment joining type stator coil for use in an electric rotating machine, capable of achieving satisfactory electrical and thermal contact between end tip portion pairs of segments and basal electrodes and of realizing suitable welding even in the alignment of a large number of end tip portion pairs. For the arc welding of the end tip portion pairs of a sequential segment joining type stator coil, a large number of end tip portion pairs adjoining each other in a radial direction are held and pressed between basal electrode blocks. At this time, a circular-arc-like auxiliary electrode is put in a radial spacing between the end tip portion pairs. This not only enables the feeding to the end tip portion pairs lying at an intermediate position in the radial direction but also stabilizes the positions of the end tip portion pairs, and even reduces the heat radiation to an insulating coat of end skewing portions extending from the proximal portions of each end tip portion pair.

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