Title:
METHOD FOR WELDING COPPER-CONTAINING MEMBERS, AND METHOD FOR MANUFACTURING DYNAMO-ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/170413
Kind Code:
A1
Abstract:
A method for welding copper-containing members according to an embodiment of the present invention comprises a step for conducting laser welding on a first member that contains copper and a second member that contains copper and that is provided adjacent to the first member. When a welding surface of the first member and a welding surface of the second member are irradiated with a laser, the position at which the laser irradiates the welding surfaces is caused to move so as to turn in a spiral shape and commensurately approach the center of the spiral, and the welding surface of the first member and the welding surface of the second member are welded.
Inventors:
SAKAI TETSUO (JP)
KIKAWADA MASAKAZU (JP)
KIKAWADA MASAKAZU (JP)
Application Number:
PCT/JP2019/006721
Publication Date:
August 27, 2020
Filing Date:
February 22, 2019
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
B23K26/21; H02K15/04
Foreign References:
| JP2016162643A | 2016-09-05 | |||
| JP2018030155A | 2018-03-01 | |||
| JP2009154194A | 2009-07-16 |
Attorney, Agent or Firm:
HYUGAJI, Masahiko et al. (JP)
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