Rotary electric machine member manufacturing method
US11764654B2 · kind B2 · utility
0Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2018 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Oct 12, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotary electric machine member manufacturing method includes: a step of providing a motor core by stacking a plurality of electromagnetic steel sheets; and a step of welding the motor core by keyhole welding while pressurizing the motor core in a stacking direction with a welding pressure lower than that at which the thickness of the motor core in the stacking direction levels off. The thickness is a length of the motor core between a first end of the motor core and a second end of the motor core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.