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:
Mar. 01, 2016
Filed:
Mar. 20, 2008
Tetsuo Era, Osaka, JP;
Futoshi Nishisaka, Osaka, JP;
Hiroyasu Mondori, Osaka, JP;
Akihiro Ide, Osaka, JP;
Tetsuo Era, Osaka, JP;
Futoshi Nishisaka, Osaka, JP;
Hiroyasu Mondori, Osaka, JP;
Akihiro Ide, Osaka, JP;
DAIHEN Corporation, Osaka, JP;
Abstract
A feed control method is provided for consumable electrode AC arc welding, in which the welding wire is fed at a predetermined wire feed rate, and a welding voltage applied to an arc is switched in alternation between positive polarity and negative polarity. In the method, a welding current setting signal is generated. The wire is fed at a first feed rate during a period of the positive polarity, whereas the wire is fed at a second feed rate different from the first feed rate during a period of the negative polarity.