JUNCTION METHOD FOR COIL END OF GENERATOR

PROBLEM TO BE SOLVED: To provide a highly reliable junction method for coil ends of a generator which can reduce the occurrence percentage of defects in a brazed part. SOLUTION: Brazing material is arranged in a group of coil element wires 3 which are obtained by heating coil element wires 2 at 300 deg.C or over, and then, annealing them to remove the insulation of the element wire applied to the periphery, and cleaning and dissolving the material face of the coil element wire 2, where the element wire insulation is removed, for 1 μm or more by inorganic acid, and bundling the cleaned and dissolved coil element wires 2, and fairing and trimming them so that the average value of the gaps between the coil element wires 2 may be 100 μm or under and that the average value of the gaps between the coil element wires 2 and a bundled-wire box 1 to be joined with the wires may be 200 μm or under, and then, they are integrated into the bundled-wire box 1, and these are heated at a specified temperature for joining.