Method and system for welding rotor coils
US10193424B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Mar 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process and a system for welding rotor coils are presented. A plurality of rotor coils are arranged on a table of a machine. A welding tool welds the rotor coils on one end using a Friction Stir Welding process. Transition pieces are each arranged between the rotor coils to create a continuous welding path. A run-off tab is placed at an end of the welding path. The welding tool is changed to a milling tool after completion of the welding. The milling tool traces back along the welding path to separate the rotor coils. The milling tool may be changed to the welding tool to repeat the process for another end of the rotor coils. The process is completely automatic and controlled by a control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.