Title:
ＩＰＭモータのロータを形成するためのリリーフ・フィーチャを備えた回転パンチ
Document Type and Number:
Japanese Patent JP7187731
Kind Code:
B2
Abstract:
Disclosed herein is a method for forming a rotor or stator core. The method includes the steps of: providing a plurality of key punches disposed about an inner diameter area of a sheet of electrical steel and circumferentially spaced from one another and activating a first key punch of the plurality of key punches to cut the electrical steel sheet to remove a portion to form a first key disposed at a first key rotational angle from the line of orientation from a plurality of key rotational angles.
Inventors:
Bender, Mark Dee.
Application Number:
JP2022507563A
Publication Date:
December 12, 2022
Filing Date:
May 05, 2021
Export Citation:
Assignee:
Tempel Steel Company
International Classes:
H02K15/02; H02K1/28
Domestic Patent References:
| JP9182387A | ||||
| JP2014236592A | ||||
| JP2004274826A | ||||
| JP2012135107A |
Foreign References:
| KR1020100007615A | ||||
| CN109378947A | ||||
| WO2018051631A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Asamura Patent Office