Method for producing rotary electrical machine, and rotary electrical machine

Method for producing a rotary electrical machine, comprising:

• disposing a segment in each of a plurality of slots located in a core, the segment including a first conductor part and a first insulating part, the first insulating part being located at an outer surface of the first conductor part;
• disposing a terminal at the core, the terminal including a second conductor part and a second insulating part, the second insulating part being located at an outer surface of the second conductor part;
• forming a coil located in the slots by laser-welding end parts of an adjacent pair of the first conductor parts;
• and
• laser-welding a bus bar to an end part of the second conductor part, the bus bar being plate-shaped,
• the bus bar having a hole extending through the bus bar in a thickness direction,
• the laser-welding of the bus bar including inserting the end part of the second conductor part into the hole of the bus bar.