Patent ID: 7726007

Claim:
A method of manufacturing a stator winding of a rotary electric machine, comprising: twisting U-shaped conductor segments having turn portions, first straight portions, and second straight portions, by moving the first straight portions and the second straight portions relative to each other in circumferential directions; pressing the turn portions obliquely from a top, or from at least one of a radially inner side and a radially outer side, such that the pressing causes a radial dimension of the turn portions to be reduced in a radially inward direction toward a center of the turn portions; inserting the first straight portions and the second straight portions into slots formed on a stator core; bending ends of a plurality of the first straight portions and a plurality of the second straight portions in a circumferential direction of the stator core, the ends being opposite to the turn portions; and joining the ends of the first straight portions and the second straight portions.