公开(公告)号：EP3767808A1

公开(公告)日：2021-01-20

申请号：EP19766827.0

申请日：2019-02-27

申请人： Mitsui High-Tec, Inc.

发明人： KATSUKI, Kenji ,  FUKUMOTO, Takashi ,  OBA, Yasutaka ,  KATO, Go ,  MATSUMOTO, Masashi

IPC分类号： H02K15/03 ,  H02K1/27

摘要： The present disclosure describes a method of manufacturing a core product, a core product, and a method of manufacturing a rotating body capable of maintaining a favorable state of weld beads in a core body. The method of manufacturing a core product includes: injecting molten resin into a resin injection portion provided in a core body so as to extend in a height direction; and forming the core product by welding the core body. Forming the core product includes welding the core body such that a weld bead formed by welding does not reach a buffer region set between the weld bead and the resin injection portion.