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:
Jan. 21, 2025
Filed:
Jul. 28, 2021
Lincoln Global, Inc., Santa Fe Springs, CA (US);
David Folzenlogen, Rocky River, OH (US);
Michel Jany, Mont Saint Aignan, FR;
Yann Rivet, Grand Couronne, FR;
Telmo Agostinho, Contlans Saint Honorine, FR;
Laurent Longinotti, Les Ageux, FR;
Richard Sabatier, Lachapelle Saint-Pierre, FR;
Loic Verwaerde, Saint Aubin Epinay, FR;
LINCOLN GLOBAL, INC., Santa Fe Springs, CA (US);
Abstract
A system and method for submerged arc welding. The system advances a consumable welding electrode toward a workpiece, and then stops the advancement when the consumable electrode makes contact with the workpiece. The system provides a preheating current level through the consumable welding electrode proximate the workpiece while the consumable welding electrode is in contact with the workpiece during a preheating period of time to preheat the portion of the consumable welding electrode without establishing an arc. The system then retracts the consumable welding electrode from the workpiece and increases the preheating current level to a welding current level over an arc establishment period of time to establish an arc between the consumable welding electrode and the workpiece. The system then begins to form a weld by advancing the consumable welding electrode toward the workpiece again, resulting in melting the consumable welding electrode and depositing molten metal onto the workpiece.