The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2014
Filed:
Jul. 06, 2010
Atsuhiro Kawamoto, Hyogo, JP;
Yasushi Mukai, Osaka, JP;
Junji Fujiwara, Osaka, JP;
Masaru Kowa, Osaka, JP;
Toshiyuki Mishima, Osaka, JP;
Atsuhiro Kawamoto, Hyogo, JP;
Yasushi Mukai, Osaka, JP;
Junji Fujiwara, Osaka, JP;
Masaru Kowa, Osaka, JP;
Toshiyuki Mishima, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An arc welding control method for carrying out welding by generating an arc between a wire and a base material. The wire is fed at wire feed speed (Wf) of periodically repeating forward feeding and reverse feeding with predetermined frequency and amplitude from time point () at which start of the welding is instructed, or from a certain time point () after the start of the welding is instructed, and then the wire feed speed is changed to a constant speed. Since the wire feed speed is controlled by periodically repeating forward feeding and reverse feeding at the arc start, short-circuit can be opened regardless of the electromagnetic pinch force, and spatters, which are generated at the early stage of the arc start because a molten pool is not preset, can be reduced.