US 12,301,074 B2
Conductive wire, welding method, and method for manufacturing rotating electrical machine
Noriyuki Takahashi, Tokyo (JP); and Teruaki Nakashima, Ibaraki (JP)
Assigned to Proterial, Ltd., Tokyo (JP); and Hitachi Astemo, Ltd., Ibaraki (JP)
Filed by Proterial, Ltd., Tokyo (JP); and Hitachi Astemo, Ltd., Ibaraki (JP)
Filed on Mar. 25, 2022, as Appl. No. 17/704,338.
Claims priority of application No. 2021-063764 (JP), filed on Apr. 2, 2021.
Prior Publication US 2022/0320976 A1, Oct. 6, 2022
Int. Cl. H02K 15/00 (2006.01); H02K 3/28 (2006.01); H02K 3/50 (2006.01)
CPC H02K 15/0068 (2013.01) [H02K 3/28 (2013.01); H02K 3/50 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A welding method for welding a pair of conductive members by arc welding, wherein one of the pair of conductive members comprises a main body and an angled protrusion having a tapered shape formed at the end of the main body, the method comprising:
performing welding by positioning a torch electrode vertically above the angled protrusion of the one of the pair of conductive members;
melting the angled protrusion by generating an arc between the angled protrusion and the torch electrode in a state in which the angled protrusion is located closer to the torch electrode than an end of another of the pair of conductive members, and
after melting the angled protrusion, starting from the angled protrusion, melting a portion of the main body connected to the angled protrusion of the one of the pair of conductive members, thereby welding the pair of conductive members.