US 12,214,452 B2
Welding power source, welding system, welding power source control method, and program
Shogo Nakatsukasa, Kanagawa (JP); Hiroshi Hashimoto, Hyogo (JP); Yoshiaki Kitamura, Hyogo (JP); and Ryo Toda, Hyogo (JP)
Assigned to Kobe Steel, Ltd., Kobe (JP)
Appl. No. 17/278,519
Filed by Kobe Steel, Ltd., Kobe (JP)
PCT Filed Sep. 24, 2019, PCT No. PCT/JP2019/037404
§ 371(c)(1), (2) Date Mar. 22, 2021,
PCT Pub. No. WO2020/067074, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 2018-180184 (JP), filed on Sep. 26, 2018.
Prior Publication US 2022/0032388 A1, Feb. 3, 2022
Int. Cl. B23K 9/095 (2006.01); B23K 9/10 (2006.01); B23K 9/12 (2006.01); B23K 9/173 (2006.01); B25J 11/00 (2006.01); G05B 19/402 (2006.01)
CPC B23K 9/0953 (2013.01) [B23K 9/0956 (2013.01); B23K 9/1062 (2013.01); B23K 9/125 (2013.01); G05B 19/402 (2013.01); B23K 9/173 (2013.01); B25J 11/00 (2013.01); G05B 2219/45104 (2013.01); G05B 2219/45135 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A welding power source configured to supply a welding current to a wire as a consumable electrode, the welding power source comprising:
a controller configured to change the welding current based on a position of a distal end of the wire a distance from which to a surface of a base metal varies periodically, in a case where the distal end of the wire is fed toward the base metal with periodical switching between a forward feeding period and a reverse feeding period, wherein
the controller is further configured to determine the position of the distal end of the wire based on a command value of a feeding speed of the wire.