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1. (WO2010119634) ARC WELDING CONTROL METHOD AND ARC WELDING CONTROL SYSTEM

Pub. No.:    WO/2010/119634    International Application No.:    PCT/JP2010/002435
Publication Date: Fri Oct 22 01:59:59 CEST 2010 International Filing Date: Sat Apr 03 01:59:59 CEST 2010
IPC: B23K 9/073
B23K 9/09
B23K 9/095
Applicants: PANASONIC CORPORATION
パナソニック株式会社
SATO, Kimiya
佐藤公哉
KAWAMOTO, Atsuhiro
川本篤寛
NAKAGAWA, Akira
中川晶
FUJIWARA, Junji
藤原潤司
Inventors: SATO, Kimiya
佐藤公哉
KAWAMOTO, Atsuhiro
川本篤寛
NAKAGAWA, Akira
中川晶
FUJIWARA, Junji
藤原潤司
Title: ARC WELDING CONTROL METHOD AND ARC WELDING CONTROL SYSTEM
Abstract:
Disclosed is a welding control method for controlling the welding of a material to be welded by alternately repeating the short period during which the welding wire is shorted to the material to be welded and the arc period during which arc is generated and arc discharge takes place, wherein the average output voltage, which is the average welding voltage calculated during welding, is compared with a preset voltage, the amount of the wire to be melted is adjusted upon occurrence of a disturbance such as elongation or shortening of the arc length by controlling the welding output current at the time of generation of the arc based on the comparison results of the average output voltage and the preset voltage, and thus the arc length is adjusted to bring the short period close to a constant period.