ROTOR FOR ROTATING MACHINE, METHOD OF MANUFACTURING SAME, AND MAGNET UNIT

摘要

In manufacturing a rotor for rotating machines by joining a rotor body and a plurality of permanent magnets through a heating process and a subsequent cooling process, a plurality of small joint surfaces are assembled to form a joint surface of the rotor body where a coefficient of thermal expansion is great in the cooling process. Accordingly, it is possible to mitigate thermal stresses in a brazing filler metal layer between the rotor body and the respective permanent magnets, avoid generation of cracking in the permanent magnets which have a small coefficient of thermal expansion in the cooling process, and strongly join the rotor body and the respective permanent magnets together.