Method for producing an active part for a rotating electric machine

A method for producing an active part for a rotating electric machine, comprising:

• providing a core for the active part and shaped conductors which are inserted into the core, wherein the core has an end side, a further end side which is situated opposite the end side and a plurality of slots which are arranged in a circumferential direction and in which the shaped conductors are arranged, wherein the shaped conductors extend from the end side to the further end side and each have a free end which protrudes at the end side and has an end face;
• joining in each case two of the end faces to one another, so that the two end faces form a pair, wherein an edge of the end face of a respective shaped conductor consists of an inner edge portion and an outer edge portion, wherein the inner edge portion of the end face of one shaped conductor of a respective pair runs along the inner edge portion of the end face of the other shaped conductor of the pair and a boundary region runs between the inner edge portions;
• and
• welding a respective pair of the end faces by a laser beam which is guided along a pattern having a trajectory over an area on the edge of which the outer edge portions lie and which includes the boundary region,
• wherein an energy of the laser beam on the area is input into the respective pair by guidance along the pattern asymmetrically with respect to a line of symmetry which runs along the boundary region or perpendicularly to the boundary region.