ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,874, issued on Aug. 19, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Arc welding control method" was invented by Yuya Furuyama (Hyogo, Japan) and Junji Fujiwara (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Forward feeding for feeding a welding wire in a direction of a workpiece and backward feeding for feeding in an opposite direction to the forward feeding are alternately performed, and the welding wire is fed at a wire feeding speed cyclically changed in a predetermined cycle and at a predetermined amplitude to perform welding by repeating an arc period and a short-circuit period. Provided du...