| 摘要 |
The invention relates to a method for producing a rotor of an electric machine, wherein the rotor has a rotor core (1) which is made of a core material and is disposed concentrically with respect to the rotor axis, wherein the rotor core (1) has grooves (2) which extend substantially in the axial direction, wherein the rotor core (1) has at each axial end of the grooves (2) a respective annular recess (3) which is disposed concentrically with respect to the rotor axis and connects the grooves (2), wherein the rotor core (1) has a diffusion layer (4) which comprises a diffusion material and which at least partially covers at least the respective surface of the grooves (2) and/or the respective annular recess (3). The invention further relates to such a rotor and an electric machine having such a rotor. In order to improve the aforementioned method or the aforementioned rotor such that the rotor can be produced more cost-effectively and has improved mechanical characteristics, according to the invention a granulate (5) of an electrically conductive material is introduced into the grooves (2) and/or the respective annular recess (3) and, while heat being supplied and while pressure being exerted, is connected by cohesive bonding to the rotor core (1). |
