Welding apparatus for induction motor and method of welding induction motor
A technology for induction motors and welding equipment, applied in welding equipment, arc welding equipment, manufacturing of motor generators, etc., can solve the problems of time-consuming and expensive, and achieve the advantages of reducing working cycle time, good heat transfer ability, and good power density. Effect
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[0021] Referring to the drawings, where the same reference numerals represent the same parts in several figures, figure 1 A first embodiment of a welding apparatus 10 for welding an alternating current (AC) induction motor 12 is shown. Specifically, the welding apparatus 10 uses first and second friction stir welding (FSW) heads 14, 16 to weld the conductor bars 18 of the annular rotor 20 of the induction motor 12 to the first short circuit ring 22 and the second short circuit ring 24, respectively. The short-circuit rings 22, 24 are preferably copper alloys or aluminum alloys. As described further below, with the welding heads 14, 16 remaining relatively fixed and the rotor 20 rotating to weld along the dual circular welding path, the welding heads 14, 16 simultaneously weld the conductor bars 18 to the short-circuit rings 22, 24 .
[0022] See Figure 7 , Shows the rotor 20 before the conductor bar 18 is welded to the short-circuit rings 22,24. Upon completion, the induction ...
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